Leptopisa setirostris ( Stimpson, 1871 )

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 : 358

Leptopisa setirostris ( Stimpson, 1871)

( Fig. 5A )

Tiarinia setirostris Stimpson, 1871: 114 (type locality: Key West).

Leptopisa setirostris – Rathbun 1925: 375 ( St Thomas). — Chace 1956: 160 (Los Roques). — Lira et al. 2013: table 1 (Los Roques).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂ MNHN-IU-2013-4901 (lot JL1472), st. GD 68, 33 m.

DIAGNOSIS. — Sides of carapace perpendicular; dorsum tuberculate. Rostral horns long, slender, contiguous.

HABITAT. — Hard bottoms, rubble, mud, plants and sponges. Collected 33 m, reported between 1- 80 m.

DISTRIBUTION. — Western Atlantic. South Florida, Cuba, Jamaica, Puerto Rico, north of South America, Brazil. Lesser Antilles VI ( St Thomas). ICA ( Guadeloupe), IOV (Los Roques).

REMARK

First record for Guadeloupe and ICA. Type-locality between Jamaica and Haiti and species already reported in Lesser Antilles (VI, IOV).

Macrocoeloma concavum Miers, 1886 ( Fig. 5B )

Macrocoeloma concava Miers, 1886: 79 (type locality: Fernando Noronha).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂ MNHN-IU-2013-5667 (lot JL1419), st. GM 34, 1 m.

DIAGNOSIS. — Rostral horns triangular, separated by a V-shaped sinus. A spine present on urogastric region. A transverse row of five spines in line of cardiac spine. A strong protogastric spine.

HABITAT. — Found at low tide on shell bottoms and calcareous algae. 1- 60 m.

DISTRIBUTION. — Puerto Rico, southwest Gulf of Mexico, Venezuela, Brazil. Now also Lesser Antilles ICA (Guadeloupe) ( Lira et al. 2013).

REMARK

First record for Guadeloupe and for Lesser Antilles.

Macrocoeloma diplacanthum ( Stimpson, 1860) ( Fig. 5 C-D)

Pericera diplacantha Stimpson, 1860: 183 (type locality: St Thomas). — Desbonne in Desbonne & Schramm 1867: 15 ( Guadeloupe). — A. Milne-Edwards 1873-1880: 55 ( St Thomas, Guadeloupe).

Macrocoeloma diplacanthum – Rathbun 1924b: 21 ( Curaçao); 1925: 478 (St Croix, St Thomas, Guadeloupe, Curaçao). — Rodríguez 1980: 291 ( Tortuga). — Marcano & Bolaños 2001: 79 (Los Roques). — Lira 2004: table 1 ( Tortuga). — Lira et al. 2013: table 1 ( Tortuga, Los Roques).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂ MNHN-IU-2013-4260 (lot JL252-2, re-det J. Poupin December 2015, sp. with typical bifid postero-lateral spine, cf. Fig. 5D (first identification as M. trispinosum ), st. GM06, 1 m ; 1 ♂ MNHN-IU-2013-14653 (lot JL700-2), st. GM 14, 1 m; 1 ov. ♀ MNHN-IU-2013-5957 (lot JL1444), st. GM 34, 1 m; 1♀ MNHN-IU-2013-6755 (lot JL1266), st. GD 49, 3 m; 1 ♀ juv. MNHN-IU-2013-14652 (lot JL55-4), st. GR01, 3 m.

DIAGNOSIS. — Postero-lateral process bifid. Rostral horns subparallel. Five conical, dorsal tubercles.

HABITAT. — Coral rests, soft and hard bottoms, in sponges. In Thalassia , Syringodium and Halodule seagrass beds. Collected at low tide, 1-3 m, reported to 29 m.

DISTRIBUTION. — Western Atlantic. Florida, Bahamas, Cuba, Puerto Rico, Jamaica, Colombia, Venezuela. Lesser Antilles VI ( St Thomas, St Croix), ICA ( Guadeloupe), IOV ( Tortuga, Los Roques, Curaçao).

REMARK

The bifid postero-lateral process is a good character to tell this species apart from related M. trispinosum (compare Fig. 5D, J ).

Macrocoeloma eutheca ( Stimpson, 1871) ( Fig. 5E )

Pericera eutheca Stimpson, 1871: 112 (type locality: Straits of Florida, French Reef and west of Tortugas). — A. Milne-Edwards 1880: 1 (St Croix).

Macrocoeloma eutheca – A. Milne-Edwards & Bouvier 1923: 395 (St Croix). — Rathbun 1925: 484 (St Croix, Barbados).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂, 1 ov. ♀ MNHN-IU-2013-13091, st. GD 69, 60 m.

DIAGNOSIS. — Rostral spines separated by a U-shape sinus. Carapace much constricted behind orbits. Orbital tubes very long.

HABITAT. — Found on hard substrate, coral and shell rubble. Collected 60 m, reported 30- 215 m.

DISTRIBUTION. — Western Atlantic. North Carolina, Florida, Bahamas, Gulf of Mexico, Cuba, Panamá, Colombia, Brazil. Lesser Antilles VI (St Croix), ICA (Guadeloupe, Barbados).

REMARK

First record for Guadeloupe but the species was already known from Lesser Antilles (VI, ICA).

Figures

FIG. 5. — Pisinae Dana, 1851: A, Leptopisa setirostris (Stimpson, 1871), 1 ♂ MNHN-IU-2013-4901, st. GD68, 33 m; B, Macrocoeloma concavum Miers, 1886, 1 ♂ MNHN-IU-2013-4901, st. GM34, 1 m; C, D, Macrocoeloma diplacanthum (Stimpson, 1860), 1♀ MNHN-IU-2013-6755, st. GD49, 3 m (D, showing bifid postero-lateral spine); E, Macrocoeloma eutheca (Stimpson, 1871), 1 ov. ♀ MNHN-IU-2013-13091, st. GD69, 60 m; F, Macrocoeloma laevigatum (Stimpson, 1860), 1 ♂ MNHN-IU-2013-5134 (lot JL1410), st. GD63, 20 m; G, Macrocoeloma nodipes (Desbonne, in Desbonne & Schramm 1867), 1 ♂ MNHN-IU-2013-4312, st. GB01, 6 m; H, Macrocoeloma subparallelum (Stimpson, 1860), 1 ♂ MNHN-IU-2013-4961, st. GM08, 1 m; I, J, Macrocoeloma trispinosum (Latreille, 1825), 1♂ MNHN-IU-2013-5951, st. GR39, 5 m. Mithracidae (Windsor & Felder, 2014): K, Damithrax hispidus (Herbst, 1790), specimen not retrieved in MNHN collection, st. GR15 (lot JL497), 11 m; L, Damithrax pleuracanthus (Stimpson, 1871), 1 ♂ MNHN-IU-2013-5950, st. GR20, 8 m; M, Damithrax tortugae (Rathbun, 1920), 1♂ juv. MNHN-IU-2013-5925, st. GR41, 28 m.