Albunea gibbesii: Benedict, 1901: 139

BOYKO, CHRISTOPHER B., 2002, A Worldwide Revision Of The Recent And Fossil Sand Crabs Of The Albuneidae Stimpson And Blepharipodidae, New Family (Crustacea: Decapoda: Anomura: Hippoidea), Bulletin of the American Museum of Natural History 2002 (272), pp. 1-396 : 327-343

Albunea gibbesii: Benedict, 1901: 139 * (not Albunea gibbesii Stimpson, 1859 ).

Albunea axyopthalma [sic]: Moreira, 1901: 88 (list).

Albunea oxycephala [sic]: Verrill, 1901: 18–19 * (error for Albunea oxyophthalma Miers, 1878 ).

Albunea paretoi [sic]: Castro, 1967: 2.

Albunea sp. Abele, 1976: 266–267 *.

Albunea sp. Bowen et al., 1979: 253.

Albunea paretti [sic]: Rodriguez, 1980: 239 (list).

? Albunea Paretii : Boas, 1880: 140, figs. 34, 61, 91, 119, 144, 195.

? Albunea sp. Gurney, 1924: 187 , fig. 73*.

? Albunea sp. A Gurney, 1942: 263–266 , fig. 110e–h.

not Albunea paretii: Kingsley, 1880: 409–410 . – Williams, 1965: 137–138 (part), figs. 112, 113*. – Kurata, 1970: 182, pls. 52, 53. – Coêlho and Ramos, 1972: 176 (part). – Dörges, 1977: 416. – Young, 1978: 177. – Kaestner, 1980: 336 (part). – Wenner and Read, 1982: 188. – Williams, 1984: 249–250 (part), figs. 182, 183*. – Fox and Ruppert, 1985: 259 (list). – Martin and Abele, 1986: 611, figs. 1b, 2d, 3b, 4b, 5b, 6b, 8b, 9b, c, 10b, 12b, 14b, 15b, 17b. – Manning, 1988: 626–628 *. – Ruppert and Fox, 1988: 250, 404, fig. 227. – Williams et al., 1989: 35. – Calado et al., 1990: 747 (part), fig. 2a, b* (= Albunea catherinae , n. sp.).

not Albunea oxyopthalma [sic]: Benedict. 1904: 625, fig. 5* (= Albunea catherinae , n. sp.).

not Albunea oxyophthalma: Southwell, 1910: 184 (= Albunea ? symmysta ( Linnaeus, 1758)) .

not Albunea oxyophthalma: Gordon, 1938: 187 (part), figs. 3d, 4d* (= Albunea catherinae , n. sp.).

not Albunea paretoi: Monod, 1956: 37–40 , figs. 2–9. – Buchanan, 1957: 56. – Sourie, 1957: 13, 31, 78. – Forest, 1958: 147 (list). – Gauld, 1960: 66 (list). – Rossignol, 1962: 124. – Fransen, 1991: 56, 77 (unjustified emendation) (= Albunea elegans A. Milne Edwards and Bouvier, 1898 ).

not Albunea paretii: Rossignol, 1957: 97 , fig. 12. – Holthuis and Manning, 1970: 251–252*. – Kaestner, 1980: 336 (part). – Türkay, 1982: 98, 101, 110. – d’Udekem d’Acoz, 1999: 171 (part) (= Albunea elegans A. Milne Edwards and Bouvier, 1898 ).

not Albunea paretti [sic]: Kurata, 1970: 180–182 (= Albunea catherinae , n. sp.).

MATERIAL EXAMINED: Bermuda: Hungry Bay , July–Sept. 1901, coll. F. G. Gosling: 1 Ƌ, 16.4 mm cl, 3 ♀, 15.9–16.8 mm cl ( USNM 42197 ), 1 ♀, 14.5 mm cl ( RMNH 14647 ex USNM 42197 ) ; Castle Island , Aug. 15, 1975, coll. M. L. Jones: 1 oviger, 13.3

mm cl ( USNM 264760 ) ; outside Hungry Bay, 15–20 ft (= 4.5–6.1 m), April 25, 1970, coll. J. Lightbourn: 1 Ƌ, 13.6 mm cl, 2 ♀, 18.8–21.0 mm cl ( USNM 267776 ) ; Paget Beach , July 1901, coll. T. G. Gosling: 1 ♀, 20.0 mm cl ( MCZ 19595) ; sandy beach between tides, Hungry Bay, Paget Parish, 1901, coll. T. G. Gosling: 1 ♀, 18.8 mm cl ( YPM 21138) .

USA: Florida: ‘‘ Florida ,’’ July 1859, coll. Capt. Woodbury: 1 ♀, 18.0 mm cl ( MCZ 13243) ; south of Key West , 20 fms (= 36.6 m), April 12, 1940, coll. J. S. Schwengel: 1 Ƌ, 15.3 mm cl ( ANSP 4327 ) .

Bahamas: Sta. 62, Long Bay , April 20, 1937, coll. Smithsonian­Hartford Expedition: 1 Ƌ, 15.1 mm cl ( USNM 104655 ) ; at and around tip of Pitts Town Point, northwestern tip of island, Crooked Island, June 1, 1962, coll. J. Tyler: 1 Ƌ, 14.7 mm cl, 1 ♀, 16.7 mm cl ( USNM 260819 ) ; Andros Island , March–April 1908, coll. B. E. Dahlgren and H. Müller: 1 ♀, 10.8 mm cl ( AMNH 5464 ) .

Cuba: Sta. R 55, Corrientes Bay , April 8, 1937, coll. Smithsonian­Roebling Expedition to Cuba: 1 Ƌ, 9.9 mm cl ( USNM 260945 ) ; Matanzas Bay , 2 m, coll. M. Ward: 2 Ƌ, 9.3– 9.7 mm cl, 1 oviger, 15.2 mm cl (AM P45217) .

Cayman Islands: 1 mi north of low point, west beach, Grand Cayman, coll. unknown: 1 Ƌ, 5.9 mm cl, 1 ♀, 8.3 mm cl ( ANSP uncataloged).

Jamaica: Kingston Harbor , 1893, coll. R. P. Bigelow: 3 ♀, 17.7–19.5 mm cl ( USNM 17990 ), 1 ♀, 17.9 mm cl ( BMNH 1937.6 .1.3 ex USNM 17990 ) ; Rio Bueno Bay , Aug. 1972, coll. E. A. Norse: 1 intersex, 16.8 mm cl (LACM­AHF 1653–01) .

Dominican Republic: Barahona Bay, Santo Domingo, 1932–1933, coll. J. C. Armstrong: 1 Ƌ, 11.0 mm cl ( AMNH 10356 ) ; Porto Plata , Santo Domingo, 27–30 ft (= 8.2–9.1 m), July 1937, coll. W. J. Clench: 1 ♀, 11.9 mm cl ( MCZ 9868 ) .

Puerto Rico: 1 km north of Mayaguez, July 26, 1974, coll. A. Williams: 2 Ƌ, 15.1– 15.3 mm cl, 1 ♀, 19.7 mm cl ( USNM 267777 ) ; Sta. 6053, off Moon Castle, San Juan Harbor , 4–7.5 fms (= 7.3–13.7 m), Jan. 15, 1899, coll. ‘‘ Fish Hawk’ ’: 2 unmeasurable juveniles ( USNM 29011 ) ; San Juan, coll. P. A. del Valle: 1 ♀, 13.9 mm cl ( USNM 84351 ) .

U.S. Virgin Islands: Magens Bay , St. Thomas, Aug. 8, 1971, coll. W. E. Rainey: 1 ♀, 22.4 mm cl ( USNM 154546 ) ; St. Thomas , coll. A. H. Riise: 2 ♀, 20.4–21.8 mm cl ( ZMUC 2711 ) ; St. Thomas , coll. A. H. Riise: 2 ♀, 14.9–15.5 mm cl ( ZMUC 2714 ) ; Drift Bay , Water Island, St. Thomas, July 13, 1915, coll. C. R. Shoemaker: 1 Ƌ, 14.1 mm cl ( USNM 68611 ) .

St. Maarten: Great Bay, June 24, 1955, coll. P. W. Hummelinck: 1 Ƌ, 17.2 mm cl ( RMNH 23628).

St. Eustatius: Orange Baai, July 28, 1957, coll. P. A. Van den Heuvel: 1 ♀, 24.0 mm cl ( RMNH 11239 ) ; Orange Baai, Sept. 24, 1957, coll. P. A. Van den Heuvel: 1 ♀, 24.9 mm cl ( RMNH 11437 ) ; Zeelandia Baai, Sept. 17, 1957, coll. P. A. Van den Heuvel: 3 ♀, 19.8–25.5 mm cl ( RMNH 11438 ) ; Zeelandia Baai, Jan. 4, 1958, coll. P. A. Van den Heuvel: 1 ♀, 21.8 mm cl ( RMNH 12209 ) ; 1957, coll. P. A. Van den Heuvel: 1 Ƌ, 16.9 mm cl, 2 ♀, 23.2 mm cl, 1 ♀, unmeasurable ( RMNH 12210 ) .

St. Kitts­Nevis: Sta. 67–58, Charlestown, Nevis, 2–3 fms (= 3.7–5.5 m), April 16, 1958, coll. Smithsonian­Bredin Caribbean Expedition: 1 Ƌ, 9.6 mm cl ( USNM 260860).

Antigua and Barbuda: Sta. 92–58, between Bird and Green Islands, NonSuch Bay, Antigua, 3–4 fms (= 5.5–7.3 m), April 23– 24, 1958, coll. Smithsonian­Bredin Caribbe­ an Expedition: 1 ♀, 8.9 mm cl ( USNM 260944).

Guadeloupe: Entre Basse Terre et la Rivière des Pères, 15–20 m, Feb. 11, 1936, coll. R. Lami: 1 ♀, 5.0 mm cl (MNHN­Hi 198); Basse Terre, vers Vieux Fort, Feb. 20, 1936, coll. R. Lami: 1 Ƌ, 6.6 mm cl (MNHN­Hi 199).

St. Lucia: ‘‘St. Lucia,’’ June 16, 1880, coll. J. Semper: 1 ♀, 24.1 mm cl ( MCZ 13261).

Barbados: ‘‘Barbados,’’ coll. C. T. Trenchman: 1 Ƌ, 12.6 mm cl ( BMNH 1921.6.9.5).

Trinidad and Tobago: Sta. 4019, Gulf of Apria, near San Fernando, Trinidad, 4.5 m, May 2, 1952, coll. Shell Expedition to the Gulf of Paria: 1 juvenile, 2.4 mm cl, 1 unsexable specimen, 7.6 mm cl ( RMNH 9097).

Netherlands Antilles: Sint Michiels Baai, Curaçao, 4 m, Jan. 1957, coll. L. B. Holthuis: 1 Ƌ, 11.8 mm cl, 3 ♀, 6.1–11.7 mm cl. 1 ♀, unmeasurable ( RMNH 14646), 1 Ƌ, 11.5 mm cl, 1 ♀, 11.5 mm cl ( AMNH 18089 ex RMNH 14646).

Honduras: Ved Roman River, 1875, coll. P. Andersen: 1 Ƌ, 7.7 mm cl ( ZMO F17537).

Panama: Sta. 258–7, Devil’s Beach, July 15, 1978, coll. M. L. Jones: 1 oviger, 16.4 mm cl ( USNM 260978); Shimmey Beach, Ft. Sherman, Jan. 23, 1971, coll. L. G. Abele: 2 Ƌ, 12.0– 13.5 mm cl ( USNM acc. 300691).

Colombia: Sta. 103, Sample 405, Humboldt Bay, May 18, 1941, coll. J. C. Armstrong (‘‘ Askoy’ ’ Expedition): 1 ♀, 18.2 mm cl ( AMNH 18091 ) ; west coast of Santa Catalina Island , north of Fort Aury, Providencia Island Group, Aug. 12, 1969, coll. C. R. Gilbert, J. C. Tyler, and S. Anderson: 1 ♀, 17.5 mm cl ( USNM 260942 ) ; beach in front of Santa Mar Hotel , Santa Marta, Oct. 14, 1977, coll. M. L. Jones: 1 juvenile, 3.2 mm cl ( USNM 260946 ) ; 5 mi northwest of Galena Point Light , 12 fms (= 21.9 m), April 25, 1939, coll. R/V ‘‘ Velero III’’: 1 Ƌ, 3.8 mm cl (LACM­AHF A48–39) .

Venezuela: Sta. 9, Isla de Margarita , Feb. 16, 1977, coll. unknown: 1 Ƌ, 8.7 mm cl, 2 ♀, 7.0– 8.7 mm cl, 1 megalopa, 3.3 mm cl, 4 first stage crabs, 2.6–3.3 mm cl ( USNM 260941 ) ; Sta. M –10–1, 1.5 m offshore, Isla Cubagua , west of Punta Brazil, Isla de Margarita, Feb. 16. 1977, coll. M. L. Jones: 1 juvenile, 2.8 mm cl ( USNM 260943 ) ; Sta. M –4–1, 1.5 m offshore, approximately 5 km west of Guayacancito , Isla de Margarita, Feb. 13, 1977, coll. M. L. Jones: 1 juvenile, 3.1 mm cl ( USNM 260947 ) .

French Guiana: Cayenne, coll. unknown: 1 Ƌ, 15.6 mm cl, syntype of A. oxyophthalma ( BMNH 57.45).

Brazil: ‘‘ Brazil ,’’ coll. unknown: 1 ♀, 19.9 mm cl, syntype of A. oxyophthalma ( BMNH 64.7 ) ; ‘‘ Brazil ,’’ coll. unknown: 1 Ƌ, 14.4 mm cl ( UFES 1307 ) ; ‘‘ Brazil ,’’ coll. Banco Calipso: 1 ♀, 4.5 mm cl ( MNRJ 8164 ) ; Amapá: Pesca Norte Island , 04°03̍N, 49°32.6̍W, coll. S. Buitone: 1 juvenile, 3.9 mm cl ( MNRJ 5408 ) ; Pará: Sta. 2092, off the mouth of the Amazon River , 00°23̍N, 47°05̍W, 21 fms (= 38.4 m), Nov. 19, 1957, coll. R/V ‘‘ Oregon’ ’: 1 Ƌ, 18.9 mm cl ( USNM 101666 ) ; 00°08̍S, 46°14̍W, 24 m, March 2, 1963, coll. R/V ‘‘ Oregon’ ’: 2 Ƌ, 15.3–15.9 mm cl, 1 ♀, 16.5 mm cl ( RMNH 23336 ) ; Maranhão: Cruise 84, Sta. 23255, 00°34̍N, 46°40̍W, 45.7 m, Nov. 28, 1977, coll. D. Sutherland on R/V ‘‘ Oregon’ ’: 1 ♀, 19.8 mm cl ( HBOM 089 :05495) ; Sta. 4220, 00°01̍N, 45°48̍W, 30 fms (= 54.9 m), March 8, 1963, coll. R/V ‘‘ Oregon’ ’: 1 Ƌ, 15.7 mm cl, 1 ♀, 19.2 mm cl ( USNM 260814 ) ; Sta. 2091, 00°33̍N, 47°03̍W, 20 fms (= 36.6 m), Nov. 18, 1957, coll. R/V ‘‘ Oregon’ ’: 1 Ƌ, 16.4 mm cl ( USNM 260815 ) ; Cruise 58, Sta. BBC 1617 (17700), 01°21̍N, 47°32̍W, 31–33 fms (= 56.7–60.4 m), May 12, 1975, coll. R/V ‘‘ Oregon II’’: 1 Ƌ, 12.9 mm cl ( USNM 260859 ) ; Cruise 58, Sta. BBC 1628, 00°54̍N, 46°42̍W, 38–43 fms (= 69.5–78.6 m), May 15, 1975, coll. R/ V ‘‘ Oregon II’’: 1 Ƌ, 12.6 mm cl ( USNM 260861 ) ; Espírito Santo: Praia dos Castelhamos, Anchieta , Nov. 21, 1971, coll. A. L. Castro: 1 ♀, 23.1 mm cl ( MNRJ 1534 ) ; Rio de Janeiro: Prainha, Arraial de Cabo, Cabo Frio , Feb. 1985, coll. G. Nunan: 1 Ƌ, 18.4 mm cl ( MNRJ 1530 ) ; Itaipu , June 6, 1959, coll. A. Coêlho, R. Arle´, and J. Becker: 1 ♀, 25.8 mm cl ( MNRJ 1531 ) ; Praia dos Anjos, Arraial do Cabo , Feb. 1967, coll. J. Jurberg: 1 ♀, 22.0 mm cl ( MNRJ 1532 ) ; Rio de Janeiro, coll. unknown: 1 Ƌ, 19.8 mm cl, 1 ♀, 9.1 mm cl ( MNRJ 1533 ) ; Sta. 39, 6 mi off mouth of Rio de Janeiro River, coll. ‘‘ Terra Nova’ ’: 2 larvae, 4.7– 4.8 mm ( BMNH 1926.5.31.354–356) ; Rio De Janeiro, coll. S. Krøyer: 1 ♀, 18.2 mm cl ( ZMUC 2716 ) ; Angra dos Reis , July 20, 1966, coll. unknown: 1 Ƌ, 7.3 mm cl ( MNRJ 3855 ) ; Angra dos Reis , July 15, 1966, coll. unknown: 1 ♀, 7.1 mm cl ( MNRJ 3859 ) ; Angra dos Reis , July 7, 1966, coll. unknown: 1 Ƌ, 7.9 mm cl, 2 ♀, 4.9–8.3 mm cl ( MNRJ 3861 ) ; Angra dos Reis , July 19, 1966, coll. unknown: 3 ♀, 6.1– 7.7 mm cl ( MNRJ 3862 ) ; Praia do Forte, Cabo Frio , Aug. 24, 1986, coll. C. E. Ribeiro: 1 Ƌ, 22.3 mm cl ( MNRJ 3864 ) ; São Paulo: São Sebastião , Dec. 12, 1989, coll. unknown: 1 Ƌ, 9.8 mm cl ( AMNH 18090 ) ; Flamengo Cove, Ubatuba , Jan. 24, 1962, coll. L. Forneris: 1 ♀, 3.9 mm cl ( RMNH 20958 ) .

Limited Data: ‘‘ St. Croix’ ’ (locality added at later date): 1 ♀, 20.7 mm cl, holotype of A. paretii ( ANSP 4101 a) ; ‘‘ Antilles’ ’ (locality may be inferred): 1 ♀, 21.9 mm cl ( ANSP 4101 b) ; ‘‘ West Indies ,’’ 1 ♀, 12.1 mm cl ( BMNH 1999.891 ) .

No Data: 1 Ƌ, 16.2 mm cl ( ANSP 4763 ) ; 1 ♀, 16.5 mm cl ( USNM 42199 ) ; 1 ♀, 23.0 mm cl ( BMNH 1998.92 ) .

DIAGNOSIS: Carapace wider than long, covered with lightly setose grooves. Anterior margin with 10–13 spines on either side of ocular sinus. Setal field with narrow lateral elements and concave anterior margin. CG1 with separate posterior lateral elements; CG4 with one long (rarely two short), anteriorly displaced, medial element between longer supralateral elements of CG4; CG5 of two triangular elements; CG6 and CG7 separate; CG8 entire; CG11 present. Rostrum present, not reaching posterior margin of ocular plate. Ocular plate triangular. Distal peduncular segments dorsoventrally flattened and triangular in shape, tapering at tip, approximated along mesial margins, lateral margins slightly convex, mesial margins straight. Cornea at tip. Dactylus of pereopod II with heel produced, tapered, and subacute. Dactylus of pereopod III with heel broad, projecting, acute. Dactylus of pereopod IV sinuous from base to tip, with low rounded heel and shallow indent. Telson of male ovate, slightly longer than wide, with broadly rounded tip, thickly calcified medially, inflated dorsally, distal two­thirds with lateral decalcified region, median row of thin setae. Telson of female flattened, ovate, and evenly calcified with slightly produced tip.

DESCRIPTION: Carapace (fig. 104A) slightly wider than long. Anterior margin slightly concave on either side of ocular sinus, becoming convex laterally, with 10–13 large spines (n = 6) along length. Rostrum as small acute tooth, reaching to proximal margin of ocular plate. Ocular sinus smoothly concave and unarmed except in largest specimens where lateral margins possess few additional small spines. Frontal region smooth; setal field narrow anteriorly and posteriorly; posterior lateral elements reduced to narrow bands of setae. CG1 parallel to anterior margin of carapace, sinuous, strongly crenulate, divided into medial fragment and curved, posteriorly displaced lateral elements. Me­ sogastric region smooth; CG2 present as short medial element; CG3 broken into one to three short elements and two long elements between posterior lateral elements of CG1; CG4 with one long (rarely two short), anteriorly displaced, medial element between longer supralateral elements of CG4. Hepatic region smooth, with oblique setose groove at median of lateral margin. Epibranchial region generally triangular, smooth; posterolateral margin with three short rows of setae. Metagastric region smooth; CG5 present as two triangular elements. CG6 strongly crenulate, strongly anteriorly concave medially and sloping out to anteriorly convex lateral thirds. CG7 oblique, almost reaching lateral margins of median segment of CG6. Cardiac region smooth; CG8 present as three long elements; posterior element displaced slightly posteriorly. CG9 present as two short lateral grooves with gap at midline. CG10 present as two long lateral elements, with gap between fragments. CG11 present as short medial element. Post­CG11 element present. Branchial region with numerous short, transverse rows of setae. Posterior margin deeply and evenly convex, with submarginal groove reaching two­thirds to three­fourths up margin of posterior concavity. Branchiostegite with short anterior submarginal spine; anterior region with scattered short, transverse lines ventral to linea anomurica; with many short rows of setae and sparsely covered with long plumose setae ventrally; posterior region membranous, with numerous irregular fragments and sparsely covered with long plumose setae.

Ocular plate (fig. 104B) triangular, with shallow median indentation; median peduncular segments present as small ovate calcified areas lateral to ocular plate. Distal peduncular segments elongate, subtriangular, 0.20–0.36 length of carapace, with straight lateral and mesial margins, cornea covering distal tip; mesial margins approximated along proximal two­thirds; mesial and lateral margins with long plumose setae; tuft of plumose setae at proximolateral ventral angle and medial row of plumose setae extending from tuft to base of cornea.

Antennule (fig. 104C) with segment III narrow proximally, expanding distally to two times proximal width; with plumose setae on dorsal and ventral margins and sparsely scattered on lateral surface; dorsal exopodal flagellum with 78–97 articles (n = 6), long plumose setae on dorsal and ventral margins; ventral endopodal flagellum short with three or four articles (n = 6) and plumose setae on dorsal and ventral margins. Segment II medially inflated in dorsal view, with plumose setae on dorsal and ventral margins and scattered on ventrolateral third of surface. Seg­ ment I wider than long, unarmed; dorsal third of lateral surface rugose, with long plumose setae; long plumose setae on dorsal and ventral margins.

Antenna (fig. 104D) with segment V approximately three times longer than wide, with long plumose setae on dorsal margin and scattered on lateral surface; flagellum with seven articles (n = 6), long plumose setae on dorsal, ventral, and distal margins. Segment IV expanded distally, with long plumose setae on dorsal, ventral, and distal margins, and row of setae on dorsolateral surface. Segment III with long plumose setae on dorsal and ventral margin and in short row on surface. Segment II short, widening distally, rugose, with plumose setae on margins and scattered on lateral surface; antennal acicle long, thin, and exceeding distal margin of segment IV by one­fifth length of segment IV, with long plumose setae on dorsal margin. Segment I rounded proximally, flattened ventrolaterally, with long plumose setae on margins and scattered on surface rugae behind spine; lateral surface with acute spine dorsodistally, with low semicircular dorsolateral lobe ventrodistal to spine; segment with ventromesial antennal gland pore.

Mandible (fig. 104E) incisor process with two teeth; cutting edge smooth. Palp threesegmented, with plumose setae on margins and long, thick, simple setae arising from bend in second segment and on distal margin of terminal segment.

Maxillule (fig. 104F) distal endite proximally narrow, widening to inflated distal end, with thick simple setae on distal margin and thin simple setae on dorsal margin. Proximal endite with thick simple setae on distal margin. Endopodal external lobe truncate distally and curled under; internal lobe reduced with three thick setae at distolateral margin.

Maxilla (fig. 104G) exopod evenly round­ ed, with plumose setae along distal margin. Scaphognathite bluntly angled on posterior lobe, with plumose setae.

Maxilliped I (fig. 104H) epipod with plumose setae on margins, distolateral surface, and mesial surface. Endite tapered distally and subequal to first segment of exopod. Exopod with two segments; proximal segment narrow, margins parallel with plumose setae; distal segment spatulate, longer than wide, broadest medially, margins and mesioventral surface with long plumose setae. Endopod flattened and elongate, reaching two­thirds to distal end of proximal exopodal segment; plumose setae on margins and median of lateral surface.

Maxilliped II (fig. 104I) dactylus evenly rounded, length equal to width, with thick simple setae distally and on distolateral surface. Propodus 1.5 times wider than long, slightly produced at dorsodistal angle, with plumose setae on dorsal margin and patch of long simple setae on lateral surface and ventrolateral angle. Carpus not produced dorsodistally, approximately two times longer than wide; long simple setae on dorsal margin. Merus approximately three times longer than wide, margins parallel; with simple and plumose setae on margins and scattered on surface. Basis­ischium incompletely fused, with plumose setae on margins. Exopod onefourth longer than merus, flagellum with one elongate article.

Maxilliped III (fig. 104J) dactylus with rounded tip; long plumose setae on margins and lateral surface. Propodus dorsally inflat­ ed, with longitudinal median row of plumose setae on lateral surface; margins with plumose setae. Carpus produced onto propodus almost one­fourth length of propodus; lateral surface with two rows of plumose setae on surface; plumose setae on margins. Merus inflated, unarmed, with plumose setae on margins and scattered on lateral surface. Basisischium incompletely fused, with weak crista dentata of two or three teeth. Exopod twosegmented: proximal segment small; distal segment styliform, tapering, approximately one­third length of merus; with plumose setae on margins; without flagellum.

Pereopod I (fig. 105A) dactylus curved and tapering; lateral and mesial surfaces smooth; dorsal margin with long plumose and short simple setae; ventral margin with short simple setae. Propodal lateral surface with numerous short, transverse rows of setose rugae; dorsal margin unarmed; ventral margin distally produced into acute spine; cutting edge lacking teeth, lined with long plumose setae; dorsal margin with long plumose setae, ventral margin with short simple setae. Carpus with dorsodistal angle produced into strong corneous­tipped spine; dor­ sal margin with short transverse grooves behind spine; dorsal and distal margins with long plumose setae; lateral surface with small distal rugose area, with few transverse setose ridges on distal half of surface; mesial surface smooth, with medial transverse row of setae, margins with long plumose setae. Merus unarmed; lateral surface with scattered transverse rows of long plumose setae, margins with long plumose setae; mesial surface with few scattered setae; fully calcified. Basis­ischium incompletely fused, unarmed. Coxa unarmed.

Pereopod II (fig. 105B) dactylus smooth; base to heel concave, heel produced but subacute, heel to tip with wide, acute indent, tip acute, tip to base broadly convex; lateral surface smooth, with several small tufts of short setae in generally straight line across medioproximal surface, several widely spaced submarginal tufts of short setae dorsodistally; mesial surface smooth, ventral margin with long plumose setae, dorsal margin with short simple setae and patch of long plumose setae at base. Propodal dorsal surface smooth, with ventral margin inflated and rounded; oblique row of long plumose setae on distal margin of lateral surface; distal and ventral margins with long plumose setae; dorsolateral surface as narrow, oblique, flattened shelf, with short setae on dorsal margin and long plumose setae on ventral margin; mesial surface with elevated, curved, setose ridge from ventral junction with dactylus almost to ventral proximal junction with carpus. Carpus slightly produced and gently rounded dorsodistally, dorsal margin with few low spines on distal two­thirds; lateral surface smooth, with setose mat at tip of produced area and irregular, interrupted row of rugae and submarginal elevated ridge ventrally, rugae and ridge with long plumose setae; margins with long plumose setae; mesial surface smooth, with row of long plumose setae subdorsally. Merus with large median decalcified window covering nearly all of lateral surface, with few scattered long plumose setae on surface and margins; mesial surface nearly smooth, with two long rows of setae. Basis­ischium incompletely fused and unarmed. Coxa with small low tubercle on anterior margin.

Pereopod III (fig. 105C) dactylus with base to heel concave, heel acutely produced, heel to tip with broadly concave indent and small concave region at midpoint of proximal margin, tip acute, tip to base smoothly convex; lateral surface smooth, with several small tufts of short setae in generally straight line across medioproximal surface, dorsodistal margin with tufts of short setae; ventral margin with long plumose setae, dorsal margin with short simple and plumose setae; mesial surface smooth, with plumose setae proximally at junction with propodus. Propodus not inflated dorsoventrally; lateral surface smooth, with long plumose setae in oblique row, simple setae on dorsal margin; dorsolateral surface narrow, oblique, flattened, with setose mat; mesial surface with scattered long setae on and near distal margin and in oblique row on surface. Carpus produced dorsodistally, only slightly exceeding proximal margin of propodus; dorsolateral margin unarmed; lateral surface slightly rugose dorsodistally, with mat of short setae and two interrupted rows of setae ventrally; mesial surface smooth, with long plumose setae on margins. Merus smooth, with large decalcified window covering nearly half of lateral surface medially; dorsal and ventral margins unarmed, with long plumose setae; distolateral margin with long plumose setae; mesial surface smooth. Basis­ischium incompletely fused and unarmed. Coxa with low tubercle on anterior margin. Female with large gonopore on anterior mesial margin of coxa, surrounded with short plumose setae; male with small depression in analogous position (not true pore).

Pereopod IV (fig. 105D) dactylus with base to tip convex proximally to concave distally, tip acute, tip to base concave distally to convex proximally; lateral surface smooth, ventral margin with long plumose setae, dorsal margin with short simple setae; mesial surface with dorsal decalcified region, demarcated ventrally by longitudinal elevated ridge with row of short setae; with setose punctations ventral to decalcified window. Propodus expanded dorsally and ventrally; ventral expansion reaching ventral margin of dactylus, margin with long plumose setae; dorsal expansion with row of long plumose setae dorsally, oblique area with mat of short simple setae; lateral and mesial surfaces smooth. Carpus slightly produced dorsodistally; ventral three­fourth of lateral surface and mesial surface smooth, dorsodistal quarter of lateral surface with mat of short setae; dorsal margin with short simple and long plumose setae; ventral margin with short simple setae; mesial surface faintly decalcified medially. Merus with scattered, short, transverse rows of setae on lateral surface, dorsal and ventrodistal margins with long plumose setae; proximoventral half of mesial surface with large decalcified window. Basisischium incompletely fused and unarmed. Coxa unarmed.

Abdomen (fig. 105E) with somite I length and width subequal, widest posteriorly; dorsal surface with anterior margin slightly concave; posterior margin curved, with elevated submarginal row of short setae; small transverse decalcified windows laterad of segment median. Somite II dorsal surface with submarginal transverse ridge anteriorly; with small transverse decalcified windows laterad of segment median just anterior to submarginal ridge; pleura expanded and directed anterolaterally; lateral margins rounded, anterior and lateral margins with long plumose setae, posterior margin with short setae; posteromesial angle with mat of short simple setae. Somite III similar to somite II, but narrower, shorter; pleura thinner and shorter than on somite II, directed anterolaterally, with setae as in somite II; anterolateral angle subacute; dorsal surface obliquely flattened anterolaterally. Somite IV similar to somite III, but thinner and shorter; dorsal surface with few short setae anterolaterally; pleura thinner and shorter than on somite III, directed posterolaterally; dorsal surface obliquely flattened anterolaterally; margins with long plumose setae. Somite V wider than somite IV; lateral margins with plumose setae; pleura absent. Somite VI slightly broader than somite V; dorsal surface with short transverse rows of setae laterad of midline; pleura absent.

Females with uniramous, paired pleopods on somites II–V; males without pleopods.

Telson of male (fig. 105F) broadly triangular, slightly longer than wide, with broadly rounded tip; thickly calcified medially, inflated dorsally; distal half with lateral decalcified region; median longitudinal groove extending one­half length, row of long simple setae of either side of median groove beginning at distal end and continuing almost to distal margin of telson; proximolateral angles with patch of short simple setae; margins with long simple setae. Telson of female (fig. 105G) flattened, ovate, and evenly calcified with slightly produced tip; median groove similar to male, setal row from end of median groove to near distal margin of telson with simple setae approximately one­half length of those on male; proximolateral angle with patch of setae, margins with long simple setae.

DISTRIBUTION: Bermuda and the Florida Keys south throughout the Caribbean and Central America to Rio Grande do Sul, Brazil ( Calado, 1987), in 0–101 m depth ( Calado, 1987).

MAXIMUM SIZE: Males: 22.3 mm cl; females: 25.8 mm cl.

TYPE SPECIMENS: ANSP 4101a (holotype of A. paretii ); BMNH 57.45 (syntype of A. oxyophthalma ); BMNH 64.7 (syntype of A. oxyophthalma ); the repository of an additional syntype of A. oxyophthalma cited by both White (1847) and Miers (1878) from St. Christophers is unknown.

TYPE LOCALITIES: Albunea paretii : ‘‘Mer de Gênes’’ or ‘‘Mediterranea?’’ (incorrect localities). Albunea oxyophthalma: St. Christophers, Cayenne [ French Guiana], and Brazil.

REMARKS: ANSP 4101a is clearly Guérin Méneville’s (1853) figured specimen and is the holotype by monotypy (see also Boyko, 2000b). Kingsley (1880) stated that Guérin Méneville’s type was not in the ANSP, but he was likely misled by the poor labeling of the specimen. The locality data ‘‘Antilles’’ was added to ANSP 4101a at a later date and may have come from Stimpson’s (1858) locality data for the species as ‘‘Antillarum?’’ The name A. oxyophthalma is a nomen nudum from both White (1847, as A. oxyophthalmus ) and Stimpson (1858).

Much of the difficulty in recognizing the identity of this species was caused by Guérin Méneville’s (1853) uncertainty as to the type locality. Guérin Méneville (1853) was told that his specimen came from Genoa ( Italy), which he thought likely, but he also was aware that the ship which brought him the specimen had been to the Americas, and he mentioned this possibility as well. The latter is the correct locality, and the specimen was likely collected in the Caribbean or South America.

It has been asserted by some authors (e.g., Monod, 1956) that the correct spelling of this specific name should be ‘‘ paretoi ,’’ as the species was named after the Marquis Pareto. However, Guérin Méneville (1853) gave the spelling as ‘‘ paretii ’’ twice, so there is no evidence of a lapsus calami or printer’s error, and A. paretii is therefore the incorrect original spelling and the one which must be used for the species.

Gurney’s (1942) Bermuda larvae are more likely to be A. paretii rather than A. gibbesii , as the latter species has only just been confirmed from Bermuda (herein) and is evidently much rarer there. The same can be said of Gurney’s (1924) larvae from off Rio de Janeiro, Brazil, where the common species is also A. paretii . The larvae of ‘‘ Albu­ nea sp.’’ reported by Bowen et al. (1979) were also probably this species, rather then the less common A. gibbesii .

The specimen from Rio Bueno Bay, Jamaica (LACM­AHF 1653–01) is the type host of the bopyrid isopod Albunione indecora ( Markham, 1988) , which occurs in the branchial chamber. This host specimen is a true intersex/feminized male, with large pleopods and well­developed gonopores on the fifth pereopods. This parasite is also known from the same host species in the Bahamas (ex AMNH 5464) (Markham and Boyko, 1999).

The drawings of this species given by Calado (1987: figs. 9. 10a) are inaccurate in that the carapace grooves are highly stylized and, moreover, very different between the two illustrations. The branchiostegite was drawn in Calado’s figure 9 as if it were fused to the carapace and were spinose on the margins, neither of which is true. These illustrations were repeated by Calado (1995). All of the material listed by Calado (1995) was from Brazil and, although not examined, undoubtedly belongs to this species rather than to the northern A. catherinae , n. sp.

Although previous authors (e.g., Monod, 1956) indicated that morphology­based separation of the trans­Atlantic A. paretii complex into component species was not possible, it is now evident that this is not correct. The Caribbean and South American specimens are all true A. paretii , while those from North America are almost all A. catherinae , n. sp. The African material is all A. elegans . It is not known how far south along the western Gulf of Mexico, if at all, A. catherinae , n. sp. ranges.

This species typifies the ‘‘ paretii ­group’’ of Albunea , which also includes A. lucasia , A. elegans , A. steinitzi , and A. catherinae , n. sp. All these species share a similar morphology of the male telson, and all have acute heels on the dactyli of pereopod III. Albunea paretii is the Atlantic analogue of A. lucasia . Albunea paretii is easily distinguished from A. catherinae , n. sp. by the distal ocular peduncle/carapace length ratio and by the shapes of the dactyli of pereopods III and IV (see under A. catherinae for specifics). It can be separated from A. elegans by the shortness of the branchiostegite spine, unbroken CG8, and the different shape of the dactyli of pereopod III.

Albunea lucasia de Saussure, 1853 Figures 106 , 107

Albuminea [sic] Lucasia de Saussure, 1853: 367, pl. 12, fig. 4*.

Albunea lucasii [sic]: Stimpson, 1857: 485 *. – Miers, 1878: 330–331. – Steinbeck and Ricketts, 1941: 459.

Albunaea [sic] Lucasii [sic]: Stimpson, 1858: 230 (list).

Albunea lucasia: Ortmann, 1896: 225 (list). – Ortmann, 1901: 1275. – Gordon, 1938: 187 (list). – Bott, 1955: 50–51, pl. 4, fig. 4a, b. – Schuster­ Dieterichs, 1956: 29, 34, 37, 40, 51. – Dexter, 1972: 455 *. – Abele, 1976: 266–267 *. – Haig, 1980: 289, fig. 19.5. – Moran, 1984: 79, fig. 6. – Coêlho and Calado, 1987: 42–43, table 1. – Lemaitre and Alvarez León, 1993: 49 (list). – Hendrickx, 1992: 9 (list). – Calado, 1995: 38– 39, pl. 4, fig. c, pl. 9, fig. a. – Calado, 1997a: 17. – Hendrickx and Harvey, 1999: 366 (list).

Albunea lucasi [sic]: Prahl et al., 1979: 55. – Prahl, 1986: 97.

Albumienea [sic] lucasia: Calado, 1995: 38 .

not Albunea lucasia: Ramos and Rios, 1995: 103 , fig. 5 (= Albunea galapagensis , n. sp.).

MATERIAL EXAMINED: Mexico: ‘‘Mexico,’’ 1 Ƌ, 13.1 mm cl ( ANSP 4102 a) ; ‘‘ Mexico ,’’ 1926, coll. Sec. Agriculture y Fomento: 1 Ƌ, 19.2 mm cl ( USNM 62387 ) ; ‘‘ Isla Grande ,’’ 10 fms (= 18.3 m), April 8, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 Ƌ, 8.5 mm cl ( USNM 260983 ) ; Sta. 963–39, ‘‘ White Friars Rocks ,’’ May 7, 1939, coll. R/V ‘‘ Velero III’’: 1 Ƌ, 10.5 mm cl, 3 ♀, 5.9–7.1 mm cl ( USNM 260982 ) ; Baja California Norte: Punta Gorda , 14 fms (= 25.6 m), April 24, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 2 ♀, 9.8–15.6 mm cl ( USNM 267775 ) ; Baja California Sur: Cabo San Lucas, south of Santa Rosalita , March 24, 1940, coll. E. Ricketts: 1 ♀, 5.5 mm cl ( USNM 267772 ) ; Bahia de la Ventana, 5–10 fms (= 9.1–18.3 m), April 21, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 ♀, 6.7 mm cl ( USNM 267773 ) ; Bahia Salinas, Isla Carmen , 20 fms (= 36.6 m), Dec. 19, 1931, coll. S. A. Glassell: 1 juvenile, 4.5 mm cl ( USNM 260997 ) ; Sonora: Puerto Peñasco , May 3, 1935, coll. S. A. Glassell: 1 Ƌ, 8.1 mm cl ( USNM 267768 ) ; north Tiburón Island , 20 fms (= 36.6 m), Jan. 1, 1932, coll. S. A. Glassell: 1 unsexable specimen, 5.1 mm cl ( USNM 267771 ) ; Guaymas , Feb. 1951, coll. unknown: 1 Ƌ, 18.1 mm cl, 1 ♀, 22.4 mm cl ( CASIZ 109241 ) ; Bahia Bocochibampo, Guaymas , Nov. 1952, coll. J. P. Strohbeen: 1 ♀, 20.3 mm cl ( CASIZ 109245 ) ; Bahia Soldado, Guaymas , Nov. 27, 1955, coll. L. O. Miles: 1 Ƌ, 13.5 mm cl, 1 ♀, 11.8 mm cl ( CASIZ 109247 ) ; Punta Cholla , May 13, 1941, coll. S. A. Glassell: 1 ♀, 9.0 mm cl ( USNM 260994 ) ; Sinaloa: Mazatlan , 1 ♀, 19.7 mm cl, holotype ( ANSP 4102 ) ; Jalisco: Bahia Tenacatita Bay , 8–10 fms (= 14.6– 18.3 m), Feb. 17, 1938, coll. S. A. Glassell: 2 Ƌ, 4.4–4.5 mm cl, 1 ♀, 5.7 mm cl ( USNM 267770 ) ; Bahia Tenacatita , 19°18̍N, 104°51̍W, 7 fms (= 12.8 m), April 11, 1937, coll. F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 Ƌ, 10.8 mm cl, 4 ♀, 8.1–9.2 mm cl, 1 oviger, 12.2 mm cl ( USNM 260998 ) ; Puerto Vallarta , 10 fms (= 18.3 m), April 13, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 ♀, 10.5 mm cl ( USNM 304300 ) ; Puerto Vallarta , 10 fms (= 18.3 m), April 13, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 ♀, 12.9 mm cl ( USNM 260992 ) ; Bahia Chamela , 8 fms (= 14.6 m), Feb. 17, 1938, coll. S. A. Glassell: 1 Ƌ, 6.7 mm cl ( USNM 260990 ) ; Guerrero: Zihuatanejo , 20 fms (= 36.6 m), Feb. 24, 1938, coll. S. A. Glassell: 1 juvenile, 3.3 mm cl ( USNM 267774 ) ; Zihuatanejo , 12 fms (= 21.9 m), Feb. 24, 1938, coll. S. A. Glassell: 1 ♀, 7.2 mm cl ( USNM 260984 ) ; Bahia Dulce , 20 fms (= 36.6 m), April 5, 1937, coll. W. Williams and F. E. Lewis on R/V ‘‘ Stranger’ ’: 2 Ƌ, 8.5–11.3 mm cl ( USNM 260985 ) ; Oaxaca: Guatulco , 50 fms (= 91.5 m), March 7, 1938, coll. S. A. Glassell: 1 ♀, 9.7 mm cl ( USNM 267769 ) ; Sta. 22, Puerto Guatulco , 3–30 fms (= 5.5–54.9 m), March 15, 1939, coll. F. E. Lewis on R/V ‘‘ Stranger’ ’: 1 ♀, 12.6 mm cl ( USNM 260995 ) ; Sta. 21, Bahia Chipequa, Gulf of Tehuantepec , 7– 18 fms (= 12.8–32.9 m), March 15, 1939, coll. R/V ‘‘ Stranger’ ’: 1 Ƌ, 9.1 mm cl, 1 ♀, 11.1 mm cl ( USNM 260996 ) .

Guatemala: ‘‘ Guatemala,’’ coll. Paessler: 2 Ƌ, 7.9–8.0 mm cl, 2 ♀, 8.0–14.0 mm cl ( ZMH K–5131) ; San Jose , 10–12 fms (= 18.3–21.9 m), Feb. 2, 1939, coll. F. E. Lewis: 1 ♀, 8.2 mm cl ( USNM 260993 ) .

Costa Rica: Gulf of Nicoya, July 6, 1981, coll. unknown: 1 Ƌ, 5.6 mm cl ( USNM 267767).

Panama: Chame Point , June–July 1912, coll. R. Tweedie: 1 Ƌ, 11.8 mm cl, 1 ♀, 14.2 mm cl ( USNM 66048 ) ; Sta. 183–6, Culebra Island , March 10, 1974, coll. NMNH­STRI Panama Survey: 1 Ƌ, 18.9 mm cl ( USNM 260986 ) ; Sta. 253–3–1, Culebra Beach , Feb. 7, 1978, coll. H. W. Kaufman: 1 juvenile, 2.3 mm cl ( USNM 260991 ) ; Sta. 183–6B, Culebra Island , March 10, 1974, coll. M. L. Jones and H. W. Kaufmann: 1 juvenile, 3.1 mm cl ( USNM 304299 ) ; Sta. 263–2, Whorehouse Reef , 1 m, July 20, 1978, coll. M. L. Jones: 3 Ƌ, 6.7–7.9 mm cl, 1 ♀, 8.8 mm cl ( USNM 260999 ) ; Sta. 182–1, Pilot House Beach , 4 ft (= 1.2 m), March 9, 1974, coll. M. L. Jones and H. W. Kaufmann: 1 juvenile, 3.6 mm cl ( USNM 260981 ) ; Sta. 182–5, Pilot House Beach , 60 ft (= 18.2 m), March 9, 1974, coll. M. L. Jones and H. W. Kaufmann: 1 juvenile, 4.5 mm cl ( USNM 260989 ) ; Ft. Amador, Naos Island , June 1969, coll. D. Dexter: 1 Ƌ, unmeasurable, 1 ♀, 7.9 mm cl ( USNM 260988 ) ; Pilot House Beach, Naos Island , Jan. 28, 1971, coll. T. A. Biffar: 1 Ƌ, 17.5 mm cl, 1 oviger, 16.1 mm ( USNM 304306 ) ; Ft. Amador, Boy Scout Islands, beyond Naos Island , July 2, 1969, coll. L. G. Abele: 4 ♀, 6.2–15.5 mm cl ( USNM 304307 ) ; Isla Gobernadoro , north of Panama City, 50 ft (= 15.2 m), coll. unknown: 1 Ƌ, 12.1 mm cl, 1 carapace, 12.1 mm cl (Feldmann Collection) .

Ecuador: Sta. 15, La Libertad, 5–12 fms (= 9.1–21.9 m), Feb. 21, 1939, coll. F. E. Lewis on R/V ‘‘Stranger’’: 2 Ƌ, 7.2–10.3 mm cl, 2 ♀, 7.6–7.9 mm cl, 1 anterior half, 8.4 mm cl ( USNM 260987).

No Data: 1 ♀, 21.5 mm cl (MNHN­Hi 188).

DIAGNOSIS: Carapace longer than wide, covered with lightly setose grooves. Anterior margin with 9–13 spines on either side of ocular sinus. Setal field with narrow lateral elements and concave anterior margin. CG1 with separate posterior lateral elements; CG4 with two to four short, anteriorly displaced, medial elements between longer supralateral elements of CG4; CG5 of two convex elements; CG6 and CG7 separate; CG8 broken; CG11 present. Rostrum present, not reaching posterior margin of ocular plate. Ocular plate triangular. Distal peduncular segments dorsoventrally flattened and triangular in shape, tapering at tip, approximated along mesial margins, lateral margins convex, mesial margins straight. Cornea at tip. Dactylus of pereopod II with heel produced and rounded. Dactylus of pereopod III with heel broad, projecting, acute. Dactylus of pereopod IV sinuous from base to tip, with low rounded heel and shallow indent. Telson of male ovate, slightly longer than wide, with broadly rounded tip, thickly calcified medially, inflated dorsally, distal two­thirds with lateral decalcified region, median row of thin setae. Telson of female flattened, ovate, and evenly calcified with slightly produced tip.

DESCRIPTION: Carapace (fig. 106A) slightly longer than wide. Anterior margin slightly concave on either side of ocular sinus, becoming convex laterally, with 9–13 large spines (n = 6) along length. Rostrum as small acute tooth, not reaching proximal margin of ocular plate. Ocular sinus smoothly concave and unarmed, except in largest specimens which possess one or two small spines. Frontal region smooth; setal field narrow anteriorly and posteriorly; posterior lateral elements reduced to narrow bands of setae. CG1 parallel to anterior margin of carapace, sinuous, strongly crenulate, divided into medial fragment and curved, posteriorly displaced lateral elements. Mesogastric region smooth; CG2 present as one or two short medial elements; CG3 broken into one or two long, anteriorly displaced, medial elements and two long lateral elements between posterior lateral elements of CG1; CG4 with two to four short, anteriorly displaced, medial elements between longer supralateral elements of CG4. Hepatic region smooth, with oblique setose groove at median of lateral margin. Epibranchial region generally triangular, smooth; posterolateral margin with two short rows of setae. Metagastric region smooth; CG5 present as two convex elements. CG6 strongly crenulate, strongly anteriorly concave medially and sloping out to anteriorly convex lateral thirds. CG7 oblique, not reaching lateral margins of median segment of CG6. Cardiac region smooth; CG8 present as one to three long elements, medial element anteriorly dis­ placed. CG9 present as two short lateral grooves with gap at midline. CG10 present as two long curved lateral elements, with gap between fragments. CG11 present as long medial element. Post­CG11 element absent. Branchial region with numerous short, transverse rows of setae. Posterior margin deeply and evenly convex, with submarginal groove reaching four­fifths up margin of posterior concavity. Branchiostegite with strong anterior submarginal spine; anterior region with scattered short, transverse lines ventral to linea anomurica; with many short rows of setae and sparsely covered with long plumose setae ventrally; posterior region membranous, with numerous irregular fragments and sparsely covered with long plumose setae.

Ocular plate (fig. 106B) triangular, with shallow median indentation; median peduncular segments present as small ovate calcified areas lateral to ocular plate. Distal peduncular segments elongate, subtriangular, with slightly convex lateral and straight mesial margins, cornea covering distolateral tip; mesial margins approximated along length; mesial and lateral margins with short plumose setae; tuft of plumose setae at proximolateral ventral angle and medial row of plumose setae extending from tuft along proximal two­thirds of segment.

Antennule (fig. 106C) with segment III narrow proximally, expanding distally to twice proximal width; with plumose setae on dorsal and ventral margins; dorsal exopodal flagellum with 101–139 articles (n = 6), long plumose setae on dorsal and ventral margins; ventral endopodal flagellum with two to four articles (n = 6), plumose setae on dorsal and ventral margins. Segment II medially inflated in dorsal view, with plumose setae on dorsal and ventral margins and in transverse medial row on lateral surface. Segment I as long as wide, with short acute spine on dorsal margin; dorsal third of lateral surface rugose, with long plumose setae; long plumose setae on dorsal and ventral margins.

Antenna (fig. 106D) with segment V approximately three times longer than wide, with long plumose setae on dorsal margin and scattered on lateral surface; flagellum with seven or eight articles (n = 6), long plumose setae on dorsal, ventral, and distal margins. Segment IV expanded distally, with long plumose setae on dorsal, ventral, and distal margins, and short scattered setae on lateral surface. Segment III with long plumose setae on ventral margin, short simple setae on dorsal margin and scattered on lateral surface. Segment II short, widening distally, rugose, with plumose setae on margins and scattered on lateral surface; antennal acicle long, thin, and exceeding distal margin of segment IV by one­fourth length of segment IV, with long plumose setae on dorsal margin. Segment I rounded proximally, flattened ventrolaterally, with long plumose setae on margins and scattered on surface rugae behind spine; lateral surface with acute spine dorsodistally, with low semicircular dorsolateral lobe ventrodistal to spine; segment with ventromesial antennal gland pore.

Mandible (fig. 106E) incisor process with two teeth; cutting edge smooth. Palp threesegmented, with plumose setae on margins and long, thick, simple setae arising from bend in second segment and on distal margin of terminal segment.

Maxillule (fig. 106F) distal endite proximally narrow, widening to inflated distal end, with thick simple setae on distal margin and thin simple setae on dorsal margin. Proximal endite with thick simple setae on distal margin. Endopodal external lobe truncate distally and curled under; internal lobe reduced with three thick setae at distolateral margin.

Maxilla (fig. 106G) exopod evenly round­ ed, with plumose setae along distal margin. Scaphognathite bluntly angled on posterior lobe, with plumose setae.

Maxilliped I (fig. 106H) epipod with plumose setae on margins, distolateral surface, and mesial surface. Endite tapered distally and subequal to first segment of exopod. Exopod with two segments; proximal segment narrow, parallel margins with plumose setae; distal segment spatulate, longer than wide, broadest medially, margins and mesioventral surface with long plumose setae. Endopod flattened and elongate, reaching two­thirds to distal end of proximal exopodal segment; plumose setae on margins and median of lateral surface.

Maxilliped II (fig. 106I) dactylus evenly rounded, length equal to width, with thick simple setae distally and on distolateral surface. Propodus 1.5 times wider than long, slightly produced at dorsodistal angle, with plumose setae on dorsal margin and patch of long simple setae on lateral surface and ventrolateral angle. Carpus not produced dorsodistally, approximately two times longer than wide; long simple setae on dorsal margin. Merus approximately three times longer than wide, margins parallel; with simple and plumose setae on margins and scattered on surface. Basis­ischium incompletely fused, with plumose setae on margins. Exopod one­half longer than merus, flagellum with one elongate article.

Maxilliped III (fig. 106J) dactylus with rounded tip; long plumose setae on margins and lateral surface. Propodus dorsally inflat­ ed, with longitudinal median row of plumose setae on lateral surface; margins with plumose setae. Carpus produced onto propodus almost one­third length of propodus; lateral surface with two rows of plumose setae on surface; plumose setae on margins. Merus inflated, unarmed, with plumose setae on margins and scattered on lateral surface. Basisischium incompletely fused, with weak crista dentata of three or four teeth. Exopod twosegmented: proximal segment small; distal segment styliform, tapering, approximately two­fifths length of merus; with plumose setae on margins; without flagellum.

Pereopod I (fig. 107A) dactylus curved and tapering; lateral and mesial surfaces smooth; dorsal margin with long plumose and short simple setae; ventral margin with short simple setae. Propodal lateral surface with numerous short, transverse rows of setose rugae; dorsal margin unarmed; ventral margin distally produced into acute spine; cutting edge lacking teeth, lined with long plumose setae; dorsal margin with long plumose setae, ventral margin with short simple setae. Carpus with dorsodistal angle produced into strong corneous­tipped spine; dorsal margin with short transverse grooves behind spine; dorsal and distal margins with long plumose setae; lateral surface with small distal rugose area, with few transverse, setose ridges on distal half of surface; mesial surface smooth, with medial transverse row of setae, margins with long plumose setae. Merus unarmed; lateral surface with scattered transverse rows of long plumose setae, margins with long plumose setae; mesial sur­ face with few scattered setae; fully calcified. Basis­ischium incompletely fused, unarmed. Coxa unarmed.

Pereopod II (fig. 107B) dactylus smooth; base to heel slightly concave, heel produced but rounded, heel to tip with wide, subacute indent, tip acute, tip to base broadly convex; lateral surface smooth, with several small tufts of short setae in generally straight line across medioproximal surface, several widely spaced submarginal tufts of short setae dorsodistally; mesial surface smooth, ventral margin with long plumose setae, dorsal mar­ gin with short simple setae and patch of long plumose setae at base. Propodal dorsal surface smooth, with ventral margin inflated and rounded; oblique row of long plumose setae on distal margin of lateral surface; distal and ventral margins with long plumose setae; dorsolateral surface as narrow, oblique, flattened shelf, with short setae on dorsal margin and long plumose setae on ventral margin; mesial surface with elevated, curved, setose ridge from ventral junction with dactylus almost to ventral proximal junction with carpus. Carpus slightly produced and gently rounded dorsodistally, dorsal margin with few low spines on distal two­thirds; lateral surface smooth, with setose mat at tip of produced area and irregular, interrupted row of rugae and submarginal elevated ridge ventrally, rugae and ridge with long plumose setae; margins with long plumose setae; mesial surface smooth, with row of long plumose setae subdorsally. Merus with large median decalcified window covering nearly all of lateral surface, with few scattered long plumose setae on surface and margins; mesial surface nearly smooth, with two long rows of setae. Basis­ischium incompletely fused and unarmed. Coxa unarmed.

Pereopod III (fig. 107C) dactylus with base to heel concave, heel produced and narrowing, rounded at apex, heel to tip with broadly concave indent and small concave region at midpoint of proximal margin, tip acute, tip to base smoothly convex; lateral surface smooth, with several small tufts of short setae in generally straight line across medioproximal surface, dorsodistal margin with tufts of short setae; ventral margin with long plumose setae, dorsal margin with short simple and plumose setae; mesial surface smooth, with plumose setae proximally at junction with propodus. Propodus not inflat­ ed dorsoventrally; lateral surface smooth, with long plumose setae in oblique row, simple setae on dorsal margin; dorsolateral surface narrow, oblique, flattened, with long simple setae on ventral margin; mesial surface with scattered long setae on and near distal margin and in oblique row on surface. Carpus produced dorsodistally, exceeding proximal margin of propodus by one­half length of propodus; dorsolateral margin unarmed; lateral surface slightly rugose dorsodistally, with mat of short setae and two interrupted rows of setae ventrally; mesial surface smooth, with long plumose setae on margins. Merus narrow, smooth, with large decalcified window covering nearly half of lateral surface medially; dorsal and ventral margins unarmed, with long plumose setae; distolateral margin with long plumose setae; mesial surface smooth. Basis­ischium incompletely fused and unarmed. Coxa with low tubercle on anterior margin in male; in female unarmed. Female with large gonopore on anterior mesial margin of coxa; male without pore.

Pereopod IV (fig. 107D) dactylus with base to tip convex proximally to concave distally, tip acute, tip to base concave distally to convex proximally; lateral surface smooth, ventral margin with long plumose setae, dorsal margin with short simple setae; mesial surface with dorsal decalcified region, demarcated ventrally by longitudinal elevated ridge with row of short setae; with setose punctations ventral to decalcified window. Propodus expanded dorsally and ventrally; ventral expansion exceeding ventral margin of dactylus, margin with long plumose setae; dorsal expansion with row of long plumose setae dorsally, oblique area with mat of short simple setae; lateral and mesial surfaces smooth. Carpus slightly produced dorsodistally; ventral four­fifths of lateral surface and mesial surface smooth, dorsodistal fifth of lateral surface with mat of short setae; dorsal margin with short simple and long plumose setae; ventral margin with short simple setae; mesial surface decalcified medially. Merus with scattered short, transverse rows of setae on lateral surface, dorsal and ventrodistal margins with long plumose setae; proximoventral half of mesial surface with large decalcified window. Basis­ischium incompletely fused and unarmed. Coxa unarmed.

Abdomen (fig. 107E) with somite I longer than wide, widest posteriorly; dorsal surface with anterior margin straight; posterior margin curved, with elevated submarginal row of short setae; small transverse, decalcified windows laterad of segment median. Somite II dorsal surface with submarginal transverse ridge anteriorly; with small transverse, decalcified windows laterad of segment median just anterior to submarginal ridge; pleura expanded and directed anterolaterally; lateral margins rounded, anterior and lateral margins with long plumose setae, posterior margin with short setae; posteromesial angle with mat of short simple setae. Somite III similar to somite II, but narrower, shorter; pleura thinner and shorter than on somite II, directed posterolaterally proximally and anterolaterally distally, with setae as in somite II; anterolateral angle subacute; dorsal surface obliquely flattened anterolaterally. Somite IV similar to somite III, but thinner and shorter; pleura thinner and shorter than on somite III, directed posterolaterally; dorsal surface obliquely flattened anterolaterally; margins with long plumose setae. Somite V wider than somite IV; lateral margins with plumose setae; pleura absent. Somite VI broader than somite V; dorsal surface with two short transverse rows of setae laterad of midline and on posterior margin; pleura absent.

Females with uniramous, paired pleopods on somites II–V; males without pleopods.

Telson of male (fig. 107F) ovate, slightly longer than wide, with broadly rounded tip and distally flattened apex; thickly calcified medially, inflated dorsally; distal half of dorsal surface with lateral decalcified region; median longitudinal groove extending onehalf length, row of long simple setae on either side of median groove beginning at distal end and continuing almost to distal margin of calcified region; proximolateral angles with patch of short simple setae; margins with long simple setae. Telson of female (fig. 107G) flattened, ovate, and evenly calcified with slightly produced tip; median groove similar to male, setal row from end of median groove to near distal margin of telson, with simple setae approximately one­fourth length of those on male; proximolateral angle with patch of setae, margins with long simple setae.

DISTRIBUTION: Baja California Norte (Gulf side), Mexico, south to Ecuador, in up to 91.5 m depth.

MAXIMUM SIZE: Males: 19.2 mm cl; females: 22.4 mm cl.

TYPE SPECIMEN: ANSP 4102 (holotype).

TYPE LOCALITY: Mazatlan [Sinaloa], Mexico.

REMARKS: As shown by Boyko (2000b), ANSP 4102 is de Saussure’s (1853) figured specimen and the holotype by monotypy. The holotype was also examined and cited by Stimpson (1857). de Saussure (1853) clearly named this species after his fellow carcinologist Pierre Hippolyte Lucas, but gave the spelling as ‘‘ Lucasia ’’ in two places, rather than the correct form of lucasi . As there is no evidence of printer’s error or lapsus calami, Albunea lucasia is the incorrect original spelling that must be used for this taxon.

Calado (1995) saw no material of this species, but she redescribed it by repeating the brief text of de Saussure (1853), as well as his carapace drawing; she also incorrectly gave the type locality as ‘‘ Cabo de San Lucas,’’ probably due to a misinterpretation of the etymology of the specific name.

Haig (1980) stated that this species occurs southward to Peru, but he did not cite what material this was based on. I have seen no material or specific records in the literature from any locality south of Ecuador.

This species is the Pacific analogue of A. paretii .

Figures

Fig. 106. Albunea lucasia de Saussure, 1853: A, B, D–J, Ƌ, 17.5 mm cl, USNM 304306; C, oviger, 16.1 mm cl, USNM 304306. A. Carapace, branchiostegite, and ocular peduncles, dorsal view. B. Ocular peduncles, dorsal view. C. Left antennule, lateral view. D. Left antenna, lateral view. E. Left mandible, mesial view. F. Left maxillule, lateral view. G. Left maxilla, lateral view. H. Left maxilliped I, lateral view. I. Left maxilliped II, lateral view. J. Left maxilliped III, lateral view. Scale = 2.2 mm (B, F), 3.3 mm (A, E, I), and 4.4 mm (C, D, G, H, J).

Fig. 107. Albunea lucasia de Saussure, 1853: A–F, Ƌ, 17.5 mm cl, USNM 304306; G, oviger, 16.1 mm cl, USNM 304306. A. Left pereopod I, lateral view. B. Left pereopod II, lateral view. C. Left pereopod III, lateral view. D. Left pereopod IV, lateral view. E. Abdominal somites I–VI, dorsal view. F. Telson of Ƌ, dorsal view. G. Telson of ♀, dorsal view. Scale = 3.0 mm (G), 4.4 mm (E, F), and 5.9 mm (A–D).