Coryrhynchus riisei ( Stimpson, 1860 )

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 : 362

Coryrhynchus riisei ( Stimpson, 1860)

( Fig. 2M )

Podochela riisei Stimpson, 1860: 196 (St Thomas) . — Aurivillius 1889: 34 (St Barthélemy). — A. Milne-Edwards 1873-1880: 193 ( St Thomas, Guadeloupe). — Rathbun 1925: 33 ( St Thomas); 1933: 7 ( St Thomas). — Williams 1984 ( Trinidad). — Marcano & Bolaños 2001: 73 (Margarita). — Carré 2005: 23 (Martinique).

Driope falcipoda Desbonne , in Desbonne & Schramm, 1867: 2 ( Guadeloupe).

Podochela spatulifrons A. Milne-Edwards, 1873 -1880: 192 ( Guadeloupe).

Pisosoma riisei – Schmitt 1935: 188 ( St Thomas).

Coryrhynchus riisei – Coelho 2006: 4 ( St Thomas).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1 sp. MNHN-IU-2013-6610 (lot JL625), st. GD 17, 30 m ; 1 sp. MNHN-IU-2013-4139 (lot JL893), st. GD 33, 130 m; 1♀ juv. MNHN-IU-2013-5917 (lot JL902), st. GR 29, 20 m.

DIAGNOSIS. — Rostrum hood-shaped, hollow beneath. Fingers of mature male narrowly gaping. Last leg about one and a half times as long as carapace. Dactyli of legs falcate, that of second leg contained two and a half or more times in the length of the propodus.

HABITAT. — On seagrass Halophila stipulacea , among hydroids, on loose rubble and rocks, on sand-mud and sand-calcareous algae bottoms. Collected 20-130 m, reported 1- 140 m.

DISTRIBUTION. — Western Atlantic. North Carolina, Florida, Bermudas, Gulf of Mexico, Honduras, Brazil (Paraiba, Pernambuco and Rio de Janeiro). Lesser Antilles VI ( St Thomas), ICA (St Barthélemy, Guadeloupe, Martinique, Trinidad), IOV (Margarita).

REMARKS

Felder et al. (2009, note 280) indicate that a few specimens from the Gulf of Mexico are problematic, exhibiting character states intermediate between C. riisei and C. algicola .

Coryrhynchus sidneyi (Rathbun, 1924) ( Fig. 2N )

Podochela sidneyi Rathbun, 1924a: 1 (type locality: off Cape Hatteras, North Carolina).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂ MNHN-IU-2013-4064 (lot JL970-2), st. GD 35, 66 m ; 1 ♂ MNHN-IU-2013-5968 (lot JL44), st. GR 12, 21 m; 1♂ MNHN- IU-2013-5937 (lot JL1260), st. GR 40, 53 m.

DIAGNOSIS. — Dactyl of last three legs elongated more than half as long as their respective propodites. Palm of adult male very slightly inflated. Sternal segments of male forming flat, sharp-edged plates.

HABITAT. — Rocky sublittoral, reef environment. Collected 21- 66 m, reported 1- 187 m.

DISTRIBUTION. — Western Atlantic. Off Cape Hatteras, North Carolina, Gulf of Mexico. Cuba. In Lesser Antilles ICA (Guadeloupe).

REMARK

This is a first record for Guadeloupe and for Lesser Antilles.

Ericerodes gracilipes ( Stimpson, 1871) ( Fig. 3A )

Podochela gracilipes Stimpson, 1871: 126 (type locality: west of Tortugas, Pacific and Carysfort Reefs, Florida) — Rathbun 1925: 47, pl. 17 ( Barbados).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1 ov. ♀ 8.3 × 4.8 mm MNHN-IU-2013-4199 (lot JL973-2; first identification as Podochela sp.; in loan with D. Felder, April 2014), st. GD 35, 66 m.

DIAGNOSIS. — Rostrum long, spiniform, unarmed. Carapace much constricted behind orbits. Fingers widely gaping in adult male. Legs filiform.

HABITAT. — On corals, calcareous algae, hard substrate, rubble and soft bottoms. Collected 66 m, reported 2- 120 m.

DISTRIBUTION. — Western Atlantic. Off Cape Lookout, North Carolina, Gulf of Mexico, Colombia, Surinam, Brazil. Lesser Antilles ICA (Guadeloupe, Barbados).

REMARK

This is a first record for Guadeloupe. This specimen was initially in a lot of ‘ Podochela spp.’. It has been sent to D. Felder (April 2014) for further studies, including molecular sequencing.

Figures

FIG. 2. — Epialtinae MacLeay, 1838: A, Acanthonyx petiverii H. Milne Edwards, 1834, 1 ♂ MNHN-IU-2013-5911, st. GM07, 1 m; B, Epialtus bituberculatus H. Milne Edwards, 1834, 1♂ MNHN-IU-2013-5924, st. GM09, 1 m; C, Epialtus dilatatus A. Milne-Edwards,1878, 1 ♀ with Sacculina 15.0 × 12.4 mm MNHN-IU-2013-6615, st. GM11, 1 m; D, Epialtus longirostris Stimpson, 1860, 1 sp. MNHN-IU-2013-5967, st. GR12, 21 m; E, Epialtus portoricensis Rathbun, 1923, 1♀ MNHN-IU-2013-4207, st.GR14, 27 m. Pisinae Dana, 1851:F, Chorinus heros (Herbst,1790),1 ♂ MNHN-IU-2013-6783, st.GM22,1 m; G, Microlissa bicarinata (Aurivillius,1889),1 ♂, MNHN- IU-2013-4446 (lot JL1425-5),st.GB32,4 m;H, Microlissa brasiliensis (Rathbun,1924),1♀ MNHN-IU-2013-13093, st. GD69,60 m;I, Pelia mutica (Gibbes,1850),1♀ ov. MNHN-IU-2013-5663, st.GB36, 16 m; J, Pelia rotunda A.Milne-Edwards,1875,1 ♂ MNHN-IU-2013-4876, st. GR11,13 m. Tychinae Dana, 1851:K, Tyche emarginata White,1847, 1♂ MNHN-IU-2013-4614, st. GS39, 16 m. Inachidae MacLeay,1838.L, Coryrhynchus algicola Stebbing,1914, 1♂ MNHN-IU-2013-4066, st. GR27,8 m; M, Coryrhynchus riisei (Stimpson,1860),1♀ juv.MNHN-IU-2013-5917, st.GR29,20 m;N, Coryrhynchus sidneyi (Rathbun,1924) 1♂ MNHN-IU-2013-5968, st.GR12,21 m.

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.