Stenorhynchus yangi Goeke, 1989

Carmona-Suárez, Carlos & Poupin, Joseph, 2016, Majoidea crabs from Guadeloupe Island, with a documented list of species for the Lesser Antilles (Crustacea, Decapoda, Brachyura, Majoidea), Zoosystema 38 (3), pp. 353-387 : 367

Stenorhynchus yangi Goeke, 1989

( Figs 3G , 4B )

Stenorhynchus yangi Goeke, 1989: 630 (type locality: 33°49’N, 76°43’W, North Carolina; also Barbados). — Poupin 1994: 45 ( Guadeloupe).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 2 sp. MNHN-IU-2014-12828 (lots JL314, JL315), st. GN 11, 140 m ; 1 sp. MNHN-IU-2014-12829 (lot JL1384), st. GD 58, 95 m; 1 sp. MNHN-IU-2013-6629 (lot JL340), st. GN09, 140 m; 1 sp. MNHN-IU-2013-4065 (lot JL313), st. GN07, 150 m.

DIAGNOSIS. — Carapace naked, rostrum devoid of setae; no spines at distal end of basal antennal article; inter-antennular septum without posteriorly directed spinous process; chelipeds hairy, palm only twice length of movable fingers in males, 1.5 to 2 times length of dactyl in females. Merus of third maxilliped with vestigial spine at anteromedial angle. Ambulatory legs, abdomen and sternum without pubescence. Regions of carapace well defined and inflated.

HABITAT. — On mud and silt bottoms, on coral pieces. Collected 95-150 m, reported 31-450 m (450 m, from Poupin 1994).

DISTRIBUTION ( Goeke 1989). — Western Atlantic. From Martha’s Vineyard, Florida, Gulf of Mexico, Grand Cayman, Puerto Rico, Dominican Republic to Suriname. Lesser Antilles ICA (Guadeloupe, Barbados).

REMARK

Goeke (1989) must be consulted for full synonymy, description and ecology of this species. Usually S. yangi is collected deeper than S. seticornis .

Family MITHRACIDAE MacLeay, 1838 (sensu stricto)

Figures

FIG. 3. — Inachidae MacLeay, 1838: A, Ericerodes gracilipes (Stimpson, 1871), 1 ov. ♀ 8.3 × 4.8 mm MNHN-IU-2013-4199, st. GD35, 66 m; B, Eucinetops blakianus Rathbun, 1896, 1 ov. ♀ MNHN-IU-2013-4191, st. GB01, 6 m; C, Podochela curvirostris (A. Milne-Edwards, 1879), 1 sp. MNHN-IU-2013-19105? KARUB- ENTHOS 2015, st. CP4623, 26/06/2015, 15°55.72’N, 61°31.02’W, 182-217 m; D, Podochela grossipes Stimpson, 1860, 1 ♂ MNHN-IU-2013-4135, st. GD50, 22 m; E, Podochela macrodera Stimpson, 1860, 1♂ MNHN-IU-2013-6613, st. GM11, 1 m. Stenorhynchinae Dana, 1851; F, Stenorhynchus seticornis (Herbst, 1788),1 ♀ MNHN-IU-2013-4062, st. GR01, 3 m; G, Stenorhynchus yangi Goeke, 1989, 1 sp. no MNHN (lot JL314), st. GN11, 140 m. Inachoididae (Guinot, 2012): H, I, Aepinus septemspinosus (A. Milne-Edwards, 1878),1 ♀ ov. 5.8 × 4.1 mm MNHN-IU-2013-11301, st. GD02,80 m; J, Collodes trispinosus Stimpson 1891, 1♀ MNHN-IU-2013-4197 (lot JL973-1), st. GD35, 66 m; K, Euprognatha gracilipes A. Milne-Edwards,1878, 1 sp. MNHN-IU-2013-19060? KARUBENTHOS 2015, st. DW4613, 25/06/2015, 16°24.16’N, 60°50.1’W, 210-240 m; L, Euprognatha rastellifera Stimpson, 1871, 1♂ 8.4 × 6.2 mm MNHN-IU-2013-4120, st. GD17, 30 m; M, Pyromaia acanthina Lemaitre, N. H. Campos & Bermúdez, 2001, 1 ♀ ov. 12.9 (without rostrum) × 8.8 mm, MNHN-IU-2013-5931, st. GN04, 150 m.

FIG. 4. — Comparison of rostrum in Stenorhynchus Lamarck, 1818 species: A, Stenorhynchus seticornis (Herbst, 1788), rostrum with setae, specimen from Martinique,coll. R. Ferry XI.2015,10-20 m (University of Fort de France); B, Stenorhynchus yangi Goeke, 1989, rostrum without setae, 1 specimen from Guadeloupe KARUBENTHOS 2012, lot JL314 (no MNHN, photo only), st. GN11, 140 m.