Mithrax, Latreille, 1816

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 : 374

Mithrax sp. ( aff. acuticornis )

( Fig. 6J, K )

MATERIAL EXAMINED. — Guadeloupe, KARUBENTHOS 2012, 1♀ ov. 26.4 × 24.2 mm MNHN-IU-2013-4437 (lot JL1046; in loan with D. Felder, April 2014), st. GB 33, 50 m ; first identification as ‘ Mithrax hemphilli ’, 1 ♀ MNHN-IU-2013-6754 (lot JL1283), st. GR 42, 32 m.

DIAGNOSIS. — Rostral horns short. Wrist of chelipeds unarmed; dorsal margin of palm smooth. Carapace setose, lateral spines short. Ambulatory legs setose.

HABITAT. — Not reported, probably rocks and rubble. Collected 32- 50 m.

REMARKS

These two Mithrax specimens are atypically setose. They can belong to a ‘setose’ form of N. acuticornis (see Fig. 8C ), or to a new species. This issue will be treated separately with help of molecular biology (c/o D. Felder and colleagues).

Figures

FIG. 6. — Pisinae Dana, 1851: A, Stenocionops coelatus, 1 ♀ MNHN-IU-2013-6729, st. GN20, 258 m. Mithracidae (Windsor & Felder, 2014): B, Maguimithrax spinosissimus (Lamarck, 1818), 1♀ MNHN-IU-2013-6626, st. GR23, 20 m; C, Hemus cristulipes A. Milne-Edwards, 1875, 1 ♀ MNHN-IU-2013-5668, st. GS11, 17 m; D, Mithraculus cinctimanus Stimpson, 1860, 1 ♀ MNHN-IU-2013-4955, st. GM21, 2 m; E, Mithraculus coryphe (Herbst, 1801), 1 ♀ MNHN-IU-2013-4958, st. GB30, 16 m; F, Mithraculus forceps A. Milne-Edwards, 1875, 1 ♂ MNHN-IU-2013-4254, st. GB09, 6 m; G, Mithraculus sculptus (Lamarck, 1818), 1♂ MNHN- IU-2013-6619, st.GM11,1 m; H, Mithrax pilosus Rathbun,1892, 1♂ MNHN-IU-2013-5929 (as ‘Mithrax verrucosus’), st.GM02,1 m;I, Mithrax verrucosus H. Milne- Edwards, 1832, 1 ♂ MNHN-IU-2013-5934, st. GM02, 1 m; Mithrax sp. (aff. acuticornis), J, 1 ♀ ov. 26.4 × 24.2 mm MNHN-IU-2013-4437 (lot JL1046), st. GB33, 50 m; K, same with carapace cleaned to show lateral spines.

FIG. 8. — Mithracidae (Windsor & Felder, 2014): A, Nemausa cornuta (Saussure, 1857), 1♂ MNHN-IU-2013-4433, st. GR33, 9 m; B, Nemausa?cornuta, 1 juv. MNHN-IU-2013-6787, st. GD64, 60 m; C, Nemausa acuticornis (Stimpson, 1871), Martinique, 1♂ coll. R. Ferry, n°52 BIOSPHERES Fort de France, XI.2015; D, Omalacantha antillensis (Rathbun, 1920), 1♂ MNHN-IU-2013-4420 (lot JL1499-7), st. GB36, 16 m; E, Omalacantha bicornuta (Latreille, 1825), 1 ♂ MNHN- IU-2013-6622, st. GM10, 1 m; F, Pitho aculeata (Gibbes, 1850), 1 ♀ MNHN-IU-2013-6731, st. GB29, 2 m; G, Pitho?laevigata (or P. lherminieri [Desbonne, in Desbonne & Schramm,1867]),1 ♂ MNHN-IU-2013-4760, st.GM06,1 m;H, Pitho lherminieri, 1♂ MNHN-IU-2013-4536, st.GR50,4 m; I, Pitho mirabilis (Herbst,1794), 1 ♀ juv.MNHN-IU-2013-5949, st. GB36,16 m; J, Teleophrys ruber (Stimpson, 1871), 1 ♂ no MNHN (lot JL125), st. GR03, 6 m; K, Thoe puella Stimpson,1860,1 ♂ MNHN-IU-2013-4256 (lot JL489-5), st. GM09, 1 m. Majidae Samouelle, 1819: L, Temnonotus granulosus A. Milne-Edwards, 1875, 1 ♀ MNHN-IU-2013-4422, no station number,coll. D. Lamy,trap 300 m; M, Thersandrus compressus (Desbonne,in Desbonne & Schramm,1867), 1♀ juv.MNHN-IU-2013-5915, st.GR14,27 m.