Sympagurus dofleini
Lemaitre,
Sympagurus dofleini
Hermit crabs of the family Parapaguridae (Crustacea: Decapoda: Anomura) from Australia: species of Strobopagurus Lemaitre, 1989, Sympagurus Smith, 1883 and two new genera.
Lemaitre, R.
Records of the Australian Museum
1996
1996-09-18
48
2
163
221
Lemaitre, 1996
Lemaitre
1996
[454,869,414,456]
Malacostraca
Parapaguridae
Sympagurus
Animalia
Decapoda
17
180
Arthropoda
species
papposus
sp. nov.
Figs 3c,d, 5b, 8-10
Sympagurus dofleini.- Lemaitre,1994: 387 (in part) ( Not Sympagurus dofleini[ Balss, 1912]). (See remarks).
Holotype. Femaleovig. (SL 14.3 mm), E of Broken Bay, FRV Kapala,sta. K75-0l-02, 33°38-34'S, 151°57' l52°0l'E, 786 -804 m, 2 Apr 1975, AMP44482. Paratypesfrom Australia. WESTERN AUSTRALIA: 1 male(SL 7.8 mm), W of Cape Leveque, FRV Soela,sta. SOI/841092, 16°09.5'S, 120008.8'E, 600- 596 m, 18 Feb 1984, WAM 1241 86. 1 male(SL 12.1 mm), Scampi Trawl Grounds, Comoe Endeavour,sta. WH 85-15, 17°22'S, 118°38'E, 430 m, 2 Nov 1985, NTM Cr006863. 1 male(SL 12.0 mm), North West Shelf, FRV Soela,sta. NWS-7, Scampi Shot2, 18°32.2'S, 117°30.9'E, 392- 400 m, 25 Jan 1983, coil. A.I Bruce, NTM Cr010911. I male (SL 13.0 mm), North West Shelf, FRV Soela, CSIRO, cruise 0184, sta. NWS-36 TIlO, 19°15'S, 115°38'E, 404 m, 29 Jan 1984, coil. A.I Bruce, USNM 270108. 2 femalesovig. (SL 9.5, 10.8 mm), North West Shelf, FRV Soela, CSIRO, cruise 0184, sta. T8, 19°20.2'S, 115°44.1'E, 306-308 m, 29 Jan 1984, NTM Cr000663, 000664. 3 males(SL 11.0 - 14.5 mm), West Shelf, FRV Soela,sta. SOI-84-61, 11 Feb 1984, coil. T. Ward, AMP39452. QUEENSLAND: 1 male(SL 14.2 mm), Marion Plateau, FRV Soela,sta. 0685-08, 22°55.1'S, 154°21.25'E, 590-606 m, 17 Nov 1985, NTMCr 006852. 1 male(SL 14.0 mm), CraigminSurvey, sta. 26, 23°15.3'S, 154°21.7'E, 549 m, 4 Oct 1980, QMW10129. 1 female(SL 13.9 mm), FRV Craig Mor,shot 14, 23°18'S, 154°13'E, 530 -585 m, 4 Oct 1980, NTMCr 001157. 1 femaleovig. (SL 11.0 mm), MV Iron Summer,shot 2, 27°19'91"S, 153°53'47"E, 600 m, 10 May 1983, trawled, QMW14338. 1 femaleovig. (SL 13.3 mm), off N Stradbroke Is., MV Iron Summer, 27°35.5'S, 153°56.7'E, 520 m, 31 Mar 1983, trawled, coil. R. Noreton, QMW16520. 1 femaleovig. (SL 14.0 mm), off N Stradbroke Is., MV Iron Summer, 27°36.5'S, 153°57'E, 550 m, 23 Nov 1982, trawled, G. Smith, QM W6518. 1 male(SL 16.6 mm), off N Stradbroke Is., MV Iron Summer, 27°40'S, 153°56.9'E, 530 m, 22 Nov 1982, trawled, G. Smith, USNM 270109. 1 male(SL 15.0 mm), off Southport, MV Iron Summer, 27°59.4'S, 154°00.1'E, 590 m, 31 Mar 1983, trawled, coil. R. Noreton, QMW16519. NEW SOUTH WALES: I female (SL 8.0 mm), 30031 '-19'4"S, 161°54'2"-40'6"E, RV Dmitry Mendeleev,cruise 16, sta. 1245, 29 Dec 1975, NMV J11164. 1 female(SL 11.7 mm), E of Broken Bay, 33°30 -27'S, 152°05-07'E, FRV Kapala,sta. K76- 24-04, 819-823 m, 21 Dec 1976, AM. 3 males(SL 11.1- 16.4 mm), 6 femalesovig. (SL 11.8-14.5 mm), off Broken Bay, FRV Kapala,sta. K75-05-05, 33°32-38'S, 152°00-04'E, 823 m, 19 Aug 1975, AM P21008. 1 male(SL 16.3 mm), E of Broken Bay, FRV Kapala,sta. K77-23-12, 33°35 -33'S, J52°00 -02'E, 823 m, 8 Aug 1977, AM P26794. 3 males(SL 14.6-17.1 mm), E of Broken Bay, FRV Kapala,sta. K75- 01-02, 33°38-34'S, 151°57'- 152°01'E, 786-804 m, 2 Apr 1975, AM P20495. 1 male(SL 17.0 mm), S of Sydney, FRV Kapala,sta. K07-01, 34°00'S, 151°43'E, 732 m, 6 Nov 1972, USNM 270110. 1 male(SL 10.4 mm), 40 kmESE of Ulladulla, FRV Soela,sta. S03/88/20, 35°31.29'S, 150049.85'E, 910 m, Engelshigh-lift demersal, colI. M. Norman, NMV J16189. 1 male(SL 7.9 mm), E of Eden, FRV Kapala,sta. K83- 12-02, 37°36'S, 150021'E, 860-960 m, 26 Sep 1983, AMP44031. Other Paratypes. INDONESIA: 1 femaleovig. (SL 9.7 mm), Indonesia, Java Sea, Siboga Exp., sta. 314, 07°36'S, 117°30.8'E, 694 m, 17 Jan 1900, ZMK. WESTERN INDIAN OCEAN: 1 male(SL 11.0 mm), 1 female(SL 12.8 mm), Madagascar, Vitiaz,cruise 17, leg 3, sta. 2635, 25°05'S, 35°15'E, 228- 205 m, 25 Nov 1989, LACM 95- 17.1. 2 femalesovig. (SL 11.2, 12.9 mm), Tulear[SW Madagascar], Vitiaz,cruise 17, sta. 2707, 33°01.8'S, 44°23.6'E, 910- 925 rn, 15 Dec 1988, USNM 270111.
Description. First 11 pairs of gills intermediate, weakly divided distally ( Fig. 9f), or occasionally phyllobranchiate (Fig. ge). Shield (Fig. 8a) as broad as long; dorsal surface frequently weakly calcified medially, with scattered short setae; rostrum broadly triangular, with short middorsal ridge; anterior margins sinuose; lateral projections broadly rounded, often nearly obsolete; anterolateral margins slightly sloping; posterior margin broadly rounded. Anterodistal margin ofbranchiostegite rounded, unarmed, setose. Ocular peduncles about half length of shield, with row of long setae dorsally. Cornea slightly dilated. Ocular acicles subtriangular, terminating in strong spine (occasionally bifid or trifid); separated basally by less than basal width of 1 acicle. Antennular peduncle long, slender, exceeding distal margin of corneae by halflength of penultimate segment. Ultimate segment twice or more as long as penultimate segment, naked or with scattered setae. Basal segment with strong ventromesial spine; lateral face with distal subrectangular lobe armed with 2 to 5 small spines, and strong spine proximally. Ventral flagellum with about 9 articles. Antennal peduncle ( Fig. 9d) exceeding distal margin of cornea by approximately half length of 5th segment. Fifth segment with scattered setae on lateral margin, and row of long setae dorsodistally. Fourth segment unarmed. Third segment with strong ventromesial distal spine. Second segment with dorsolateral distal angle produced, terminating in strong, multifid spine; mesial margin with spine on dorsodistal angle. First segment with small tubercle on lateral face; ventromesial angle produced, with 3 to 7 small spines laterally. Antennal acicles nearly straight (in dorsal view), exceeding distal margin of corneae by about 0.25 length of acicle, terminating in strong spine; mesial margin armed with 7 to 13 wellspaced spines, setose. Flagellum long, naked or with inconspicuous short setae less than half 1 flagellar article in length, exceeding extended right cheliped and ambulatory legs. Mandible with 3-segmented palp. Maxillule ( Fig. 9a,b) with external lobe of endopod weakly developed, internal lobe with 2 or 5 long setae. Maxilla with endopod slightly exceeding distal margin of scaphognathite. First maxilliped with endopod slightly exceeding exopod in distal extension. Second maxilliped without distinguishing characters. Third maxilliped ( Fig. 9c) slender, distal 3 segments each 3 times as long as broad; crista dentata formed of 14 to 17 corneous-tipped teeth; coxa and basis each with small mesial tooth. Sternite of 3rd maxillipeds with small spine on each side of midline. Epistome with short, straight spine (often blunt), or unarmed. Labral spine present. Fig.8. Sympagurus papposus n.sp.a, shield and cephalic appendages; b, ocular acicles, dorsal; c, antennal acicles, dorsal; d,e, left cheliped, denuded; f, right cheliped, denuded; g, left 2nd pereopod, lateral; h, dactyl of same, mesial; i, left 3rd pereopod, lateral; j, stemite of 3rd pereopods, ventral; k, propodus and dactyl of left 4th pereopod, lateral; 1, propodus and dactyl of left 5th pereopod, lateral. Scales = 4 mm (a,g-i), I mm (b,k,l), 2 mm (c,j), 5 mm (d-t). (a,c,d, f-I, paratype male [SL 12.1 mm], Western Australia, NTM Cr 006863; b, paratype female [SL 14.5 mm], New South Wales, AM P21008; e, paratype male [SL 11.0 mm], Madagascar, LACM). Fig. 9. Sympagurus papposus n.sp.a, left maxillule, internal, b, endopod of same; c, left 3rd maxilliped, internal; d, right antennal peduncle, lateral; e,f, branchia, transverse section; g, male left 1st gonopod, mesial; h, male left 2nd gonopod, anterior; i,j, exopod of uropods, dorsal: i, left, j, right. Scales = 2 mm (a,d,i,j), I mm (b,e, g,h), 4 mm (c), and 0.5 mm (f). (a-d,f-j, paratype male [SL 12.1 mm], Western Australia, NTM er 006863; e, paratype male [SL 14.0 mm], Queensland, QM WIOI29). Chelipeds markedly dissimilar. Right cheliped (Fig. 8f) massive, with dense plumose setae. Fingers straight, terminating in small corneous claw; cutting edges each with irregularly-sized calcareous teeth; dorsal and ventral faces each with row of tufts of setae parallel to cutting edge. Dactyl subequal in length to palm, set at weakly oblique angle to longitudinal axis of palm; mesial face rounded, with irregular rows of small spines; dorsal and ventral faces unarmed or at most with scattered small tubercles. Fixed finger with dorsal and ventral surfaces similar to dactyl. Palm about as long as broad; lateral and mesial faces rounded, with irregular rows of wellspaced small spines; dorsal and ventral surfaces smooth or at most with scattered tubercles. Carpus with small, well-spaced tubercles or spines on dorsal surface, dorsodistal margin unarmed; ventral surface with scattered small tubercles. Merus with dorsal surface similar to that of carpus; ventromesial margin with row of small spines. Coxa and ischium with small spines on ventral face· coxa with ventromesial row of setae. Fig.10. Telson of Sympagurus papposus n.sp.a, male, dorsal; b, same, ventral; c, female, dorsal; d, same, ventral; e, female, dorsal. Scales = 2 mm (a-d), and 3 mm (e). (a,b, paratype male [SL 12.1 mm], Western Australia, NTM er 006863; c,d, paratype female [SL 11.0 mm], Queensland, QM 14338; e, paratype female [SL 14.5 mm], New South Wales, AM P21008). Left cheliped (Fig. 8e,d) well calcified, with dense plumose setae. Fingers terminating in small corneous claws; dorsal and ventral surfaces smooth except for tufts of setae; cutting edge of dactyl with row of minute, fused corneous teeth; cutting edge of fixed finger with row of regularly-spaced, small calcareous teeth interspersed with minute, fused corneous teeth. Dactyl about 1.3 times as long as palm. Palm unarmed or occasionally with dorsomesial row of small tubercles or spines; ventral surface smooth or with scattered small tubercles. Carpus with dorsal surface usually unarmed (Fig. 8d), or occasionally with row of small tubercles or spines on dorsal margin (Fig. 8e); ventral surface smooth. Merus with dorsal surface unarmed or at most with small, low tubercles on dorsal margin; ventral face often with scattered small spines. Ischium with row of spines on ventral margin. Coxa unarmed but with ventromesial row of setae. Ambulatory legs (Fig. 8g-i) similar from right to left, long, reaching to extended right cheliped; ischium, merus, carpus and propodus with scattered short setae. ~actyl about 1.4 times as long as propodus, terminating m sharp corneous claw; with dorsomesial row of long setae, and ventromesial row of about 17 to 30 small corneous spines. Carpus with small dorsodistal spine (often blunt). Merus of 2nd pereopods usually with row of small spines on ventral margin. Ischium and coxa unarmed. Anterior lobe of sternite of 3rd pereopods (Fig. 8j) with strong marginal spine (sometimes bifid), setose. Fourth pereopod (Fig. 8k) semichelate. Dactyl subtriangular, terminating in sharp corneous claw, and ventrolateral row of small corneous spinules. Propodus with. d~rsal margin longer than dorsoventral height, rasp conslstmg of 2 or 3 rows of conical scales. Carpus with long setae on dorsal margin. Merus with rows of long setae on dorsal and ventral margins. Fifth pereopod (Fig. 81) semichelate. Propodal rasp extending to mid-length of segment. Uropods and telson ( Fig. 9i,j, 10) markedly asymmetrical. Telson with transverse suture; dorsal surface with scattered short setae; female with ventrolateral margin of left anterior lobe (occasionally also of right lobe) with cluster of corneous spines mixed with long bristle-like setae ( Fig. 1Oc-e); male with ventrolateral margins of anterior lobes with long setae ( Fig. 1Oa,b); both sexes with posterior lobes separated by U- or V-shaped cleft, terminal margin of lobes armed with corneous spines. Males with paired 1st and 2nd gonopods well developed. First gonopods ( Fig. 9g) each with ovate, weakly concave distallobe. Second gonopods ( Fig. 9h) each occasionally with rudimentary exopod on one side; distal segment nearly flat, setose on distomesial face, with row of short setae on lateral margin; basal segment with long setae on posterior face. Females rarely with rudimentary paired 1st pleopods, and vestigial 2nd right pleopod.
Habitat and symbiotic associations.Found living III zoanthids (probably Epizoanthussp.; Fig. 5b).
Distribution.Indo Pacific: Madagascar; Indonesia; and Australia. Depth: 205 to 960 m.
Etymology.The specific name is derived from the Latin pappus,bristles, and refers to the characteristic spines and bristle-like setae on the telson in females of this species.
Affinities.This new species closely resembles Sympagurus dofleini( Balss, 1912)(see Lemaitre, 1994: 384, figs 7, 8). Female specimens of S. papposuscan immediately be separated from male or females of S. dofleiniby the ventrolateral armature of the anterior lobes of the telson. Females of the new species have the left anterior lobe (and sometimes also the right anterior lobe) armed ventrolaterally with a fringe or cluster of corneous spines mixed with long bristle-like setae (Fig. lOc-e). In S. dofleinithe anterior lobes in both sexes have at most a row of long setae ventrolaterally. In contrast to females, males of the two species can be separated using only a number of subtle but distinct differences. The anterolateral projections ofthe shield are broadly rounded, often obsolete (Fig. 8a), on S. papposus,whereas they are broadly triangular and often terminate acutely on S. dofleini.The armature of the antennal acicles in the two species differs in that the spines are stronger and more broadly spaced on S. papposus( Fig. 9c) than S. dofleini( Fig. 11a). The gills of S. papposusare phyllobranchs, or intermediate branchiae with lamellae weakly divided distally (Fig. ge,f); the gills of S. dofleiniare intermediate with lamellae deeply divided distally ( Fig. 11b). The distal lobe of the male 1st gonopod ( Fig. 9g) is broader in S. papposusthan S. dofleini. Although there is some interspecific overlap in the range of variation of the armature of the carpus of the left cheliped in S. papposusand S. dofleini,this character can also be of help in differentiating the two species. The carpus of the left cheliped of S. papposusis usually unarmed dorsally (Fig. 8d), whereas the carpus of S. dofleinihas a row of spines or tubercles on the dorsal margin (in addition to one or more dorsodistal spines). The two species also differ in their habitat and symbiotic associations. Sympagurus papposushas been found living exclusively in large zoanthids ( Epizoanthussp.; Fig. 5b), whereas S. dofleiniis commonly found living in large actinians of the genus Stylobateswhich secrete a chitinous pseudo-shell (see Fautin Dunn et al.,1980; Fautin, 1987). Remarks.During a study of parapagurids from French Polynesia, Lemaitre (1994: 387)mentioned under the distribution of S. dofleinithat he had examined specimens of that species from Australia. However, reexamination of those specimens showed that they actually represent the new species S. papposus. Sympagurus dofleinihas not been found to date in Australian waters.
3066881474
P44482
1975-04-02
FRV, AM
795
Female
17
180
1
holotype
3066881460
FRV
Australia.
W of Cape Leveque
17
180
1
1
Western Australia
paratype
3066881303
1984-02-18
WAM
596
-16.158333
Soela
17
180
WAM 1241
1
Western Australia
paratype
3066881515
1985-11-02
NTM
430
-17.366667
Comoe Endeavour
1279
118.63333
Scampi Trawl Grounds
17
180
1
1
Western Australia
paratype
3066881346
FRV
Cr
North West Shelf
17
180
1
1
Western Australia
paratype
3066881399
1983-01-25
NTM
A. I Bruce
396
-18.536667
Scampi Shot
127
117.515
Soela
17
180
1
Western Australia
paratype
3066881422
[225,1207,1298,1333]
FRV
North West Shelf
Cr
17
180
1
Western Australia
paratype
3066881357
[224,462,1339,1374]
CSIRO
Soela
17
180
1
Western Australia
paratype
3066881371
1984-01-29
USNM
Bruce
404
-19.25
1272
115.63333
17
180
USNM 270108
1
Western Australia
paratype
3066881618
FRV
North West Shelf
17
180
2
2
Western Australia
paratype
3066881359
[306,524,1465,1500]
CSIRO
Soela
17
180
1
Western Australia
paratype
3066881401
[543,841,1465,1500]
T
17
180
T8
1
Western Australia
paratype
3066881344
1984-01-29
NTM
307
-19.336666
127
115.735
17
180
1
Western Australia
paratype
3066881455
FRV
Cr
West Shelf
17
180
3
3
Western Australia
paratype
3066881639
1984-02-11
T
Soela
17
180
1
Western Australia
paratype
3066881532
P39452
[611,922,1590,1625]
AM
Ward
17
180
1
Western Australia
paratype
3066881351
[224,1207,1691,1726]
FRV
QUEENSLAND
17
180
1
1
Queensland
3066881472
1985-11-17
NTM
598
-22.918333
Soela
92
154.35417
17
180
1
QUEENSLAND
3066881625
W10129
1980-10-04
QM
549
-23.255
125
154.36166
17
180
1
1
QUEENSLAND
3066881447
[462,931,1858,1893]
FRV
17
180
1
1
QUEENSLAND
3066881508
1980-10-04
NTM
558
-23.3
Craig Mor
1256
154.21666
17
180
1
QUEENSLAND
3066881635
[364,898,1941,1976]
MV
17
180
1
1
QUEENSLAND
3066881583
W14338
1983-05-10
QM
600
153.8964
17
180
1
QUEENSLAND
3066881591
MV
17
180
1
1
QUEENSLAND
3066881501
1983-03-31
R
520
-27.591667
123
153.945
17
180
1
QUEENSLAND
3066881685
W16520
[595,953,2108,2143]
QM
Noreton
17
180
1
QUEENSLAND
3066881502
MV
17
180
1
1
QUEENSLAND
3066881680
1982-11-23
QM
550
-27.608334
Smith
825
153.95
17
180
W6518
1
QUEENSLAND
3066881453
[437,1206,2233,2269]
MV
17
180
1
1
QUEENSLAND
3066881376
1982-11-22
USNM
530
-27.666666
929
153.94833
17
180
USNM 270109
1
QUEENSLAND
3066881378
MV
17
180
1
1
QUEENSLAND
3066881643
1983-03-31
R
590
-27.99
123
154.00166
17
180
1
QUEENSLAND
3066881561
W16519
[824,1199,2401,2435]
QM
Noreton
17
180
1
QUEENSLAND
3066881587
RV
NEW SOUTH WALES
17
180
1
New South Wales
3066881534
1975-12-29
NMV
Dmitry Mendeleev
17
180
1
NEW SOUTH WALES
3066881567
J11164
FRV
Broken Bay
17
180
1
1
NEW SOUTH WALES
3066881651
1976-12-21
AM
821
17
180
1
NEW SOUTH WALES
3066881600
FRV
Broken Bay
17
180
9
6
3
NEW SOUTH WALES
3066881499
1975-08-19
AM
823
17
180
1
NEW SOUTH WALES
3066881464
P21008
FRV
Broken Bay
17
180
1
1
NEW SOUTH WALES
3066881552
1977-08-08
AM
823
17
180
1
NEW SOUTH WALES
3066881332
P26794
FRV
Broken Bay
17
180
3
3
NEW SOUTH WALES
3066881544
1975-04-02
AM
795
152.01666
17
180
1
NEW SOUTH WALES
3066881672
P20495
[397,1205,2996,3031]
FRV
Sydney
17
180
1
1
NEW SOUTH WALES
3066881439
1972-11-06
USNM
732
-34.0
1202
151.71666
17
180
1
NEW SOUTH WALES
3066881326
FRV
Ulladulla
17
180
1
1
NEW SOUTH WALES
3066881339
NMV
M. Norman
910
-35.5215
Engels
Soela
17
180
1
NEW SOUTH WALES
3066881424
J16189
[1280,1979,413,447]
FRV
Eden
17
180
1
1
3066881353
P44031
1983-09-26
AM
910
-37.6
17
180
1
3066881505
1900-01-17
ZMK
Indonesia
Other
694
-7.6
Sea
929
117.513336
Indonesia
17
180
1
1
Jawa Timur
paratype
3066881340
1989-11-25
LACM
Madagascar
205
-25.083334
Vitiaz
1248
35.25
17
180
LACM 95, 17.1
2
1
1
3066881456
1988-12-15
USNM
Madagascar
-33.03
Tulear
120
44.393333
Vitiaz
17
180
USNM 270111
2
2