Endevoura prodigium, Lowry, James K. & Hughes, Lauren E., 2015

Lowry, James K. & Hughes, Lauren E., 2015, Endevouridae, a review with description of four new species (Crustacea, Amphipoda, Lysianassoidea), Zootaxa 4018 (1), pp. 1-34 : 10-15

publication ID	https://doi.org/ 10.11646/zootaxa.4018.1.1
publication LSID	lsid:zoobank.org:pub:625A2CC6-303A-4ECE-A330-C26E226E0985
DOI	https://doi.org/10.5281/zenodo.5314760
persistent identifier	https://treatment.plazi.org/id/03BFF809-FFDE-7073-FF3C-A495FB771454
treatment provided by	Plazi
scientific name	Endevoura prodigium
status	sp. nov.

Treatment

Endevoura prodigium sp. nov.

( Figs 8–12 View FIGURE 8 View FIGURE 9 View FIGURE 10 View FIGURE 11 View FIGURE 12 )

Type material. Holotype, 1b female (non-ovigerous, no oostegites, gonopore nodule present on base of pereopod), 8.4 mm, 5 slides, NMV J 68178 View Materials , 100 km north-east of North Point, Flinders Island, eastern Bass Strait (38°51.8'S, 148°26.5'E), 130 m, fine sand, grab, 15 November 1981, coll. R. Wilson, “RV Tangaroa ” (stn BSS 170G). Paratype, 1c male, 6.0 mm, dissected 5 slides, NMV J68179 View Materials ; 1A male, 9.6 mm, dissected 5 slides (P 3 in microvial), NMV J68180 View Materials , 1 “d” specimen NMV J68181 View Materials , collected with holotype.

Additional material examined. Eastern Australia. 1 mature male, AM P.97704, due east of Mooloolaba, Queensland (26°39'08"S, 153°18'53"E), 50 m, 2 July 1995 to 3 July 1995, baited trap, coll. J.K. Lowry & K. Dempsey, SEAS Project (QLD-1197); 1 specimen, NMV J68182 View Materials , 85 km north-east of North Point, Flinders Island, eastern Bass Strait (39°02.4'S, 148°30.6'E), 120 m, muddy sand, epibenthic sled, 15 November 1981, coll. R. Wilson, “RV Tangaroa ” (stn BSS-169); 1?female, AM P.69286, east of Seal Rocks, eastern Bass Strait (38°59.1'S, 148°31.6'E), 125 m, benthic sled, 27 August 1994, coll. P.B. Berents, “FRV Southern Surveyor” (stn 05/94/60); 1 female, NMV J68183 View Materials , south of Point Hicks, Victoria (38°17.70'S, 149°11.30'E), 400 m, coarse sand, gravel, mud, many sponges, WHOI epibenthic sled, 24 July 1986, coll. M.F. Gomon et al., “RV Franklin” (stn SLOPE 40); 1?female, AM P.47033, off Wollongong, New South Wales (34°32.09'S, 151°12.55'E), 200 m, baited trap, 7–8 May 1993, coll. P. Freewater, S. Keable & W. Vader, “MV Robin E” (stn NSW-797); 1 male, NMV J68184 View Materials , 44 km east of Nowra, New South Wales (34°55.79'S, 151°08.06'E), 429 m, muddy coarse shell, WHOI epibenthic sled, 22 October 1988, coll. G.C.B. Poore et al., “RV Franklin” (stn SLOPE 56); 1 specimen (66 “B”), NMV J68187 View Materials , 35 km north of Cape Wickham, King Island, central Bass Strait (39°13.6'S, 143°55.6'E), 85 m, fine sand, epibenthic sled, 23 November 1981, coll. R. Wilson, “RV Tangaroa ” (stn BSS-205S); 1 specimen (66 “D”), NMV J68188 View Materials , 35 km north of Cape Wickham, King Island, central Bass Strait (39°13.6'S, 143°55.6'E), 85 m, fine sand, epibenthic sled, 23 November 1981, coll. R. Wilson, “RV Tangaroa ” (stn BSS-205S).

Etymology. Latin for wonder, monster, omen.

Type locality. 100 km north-east of North Point, Flinders Island, eastern Bass Strait (38°51.8'S, 148°26.5'E).

Diagnosis. Head lateral cephalic lobe subacute. Maxilla 1 outer plate, palp with 11 nodular robust setae and 1 slender robust seta. Maxilliped inner plate 6 robust setae. Gnathopod 1 basis anterior margin cuspidate. Pereopod 3 carpus posteroproximal margin produced into a hook; propodus palm obtuse, margin convex. Epimeron 3 posteroventral corner subquadrate. Uropod 3 inner ramus shorter than article 1 of outer ramus. Telson slightly longer than broad, length 1.3 × breadth.

Description of holotype female. Head lateral cephalic lobe subacute. Antenna 1 peduncular article 3 hidden in medial view; accessory flagellum 4-articulate; primary flagellum 5-articulate. Mandible incisor rounded, margin smooth; palp attached about midway, just proximal to molar; palp article 2 length 1.6 × article 3. Maxilla 1 inner plate with 1 apical seta; outer plate with 10 setal-teeth; palp with 11 nodular robust setae and 1 slender robust seta (broken) across distal margin and extending down subapical medial margin. Maxilla 2 inner plate subtriangular, narrow; smaller than outer plate; outer plate subrectangular. Maxilliped inner plate with 6 nodular robust setae; outer plate with 12 embedded nodular setae and 1 slender seta (broken); palp article 4 spatulate.

Gills pereonite 2 – 6 present. Coxae 1–3 ventral margin with sparse fine setae. Gnathopod 1 simple; basis anterior margin cuspidate; carpus 1.8 × propodus; dactylus posterior margin smooth. Gnathopod 2 minutely chelate. Pereopod 3 chelate; merus length 0.6 × width; carpus posterior margin as long as free proximal margin of propodus, posteroproximal margin produced into a hook; propodus length 1.8 × width, posteroproximal margin not produced, palm obtuse, margin convex. Pereopods 5–6 basis posterior margin expanded; merus posterior margin expanded. Pereopod 7 basis posterior margin excavate distally.

Epimeron 1 rounded. Epimera 2–3 subquadrate. Uropods 1 peduncle with 7 lateral and 2 apical robust setae; inner ramus with 3 lateral robust setae; outer ramus with 2 lateral robust setae. Uropod 2 peduncle with 2 lateral and 2 apical robust setae; inner ramus with 3 lateral robust setae; outer ramus with 1 lateral robust seta. Uropod 3 peduncle with 1 apical robust seta; inner ramus shorter than article 1 of outer ramus; outer ramus 2-articulate, article 2 length atleast 1.1 × width (broken). Telson slightly longer than broad, length 1.3 × width.

Male sexually dimorphic characters. Gnathopod 1 basis anterior margin serrate; carpus length 2.8 × width, longer than propodus, length 1.2 × propodus. Pereopod 3 propodus length 1.2 × width, posteroproximal margin produced into a lobe, lobe not extending beyond carpus; propodus palm slightly convex.

Remarks. A large posterodistal hook on the carpus of pereopod 3 separates the male and female End.

prodigium from other endevourids. See also remarks for End. inusitatus sp. nov. A large body size species, at> 8 mm the specimens examined here are more substantially larger than material reported for other endevourid species which range between 2 and 5 mm in length.

Distribution. Eastern Australia, Moolooloobah, Bass Strait, Australia (current study).