Epialtus portoricensis Rathbun, 1923

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 : 356

Epialtus portoricensis Rathbun, 1923

( Fig. 2E )

Epialtus longirostris forma portoricensis Rathbun, 1923: 72 (type locality: Puerto Rico); 1925: 151 ( Puerto Rico).

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♀ MNHN-IU-2013-4207 (lot JL518), st. GR 14, 27 m.

DIAGNOSIS. — Rathbun (1925) for E. longirostris forma portoricensis : differs from typical E. longirostris only in the rostrum being slightly wider and less thick, and the tip slightly arcuate in dorsal view.

HABITAT. — On the algae Halophila stipulacea on hard bottom of rocks and rubble. Collected 27 m, no depth range reported previously.

DISTRIBUTION. — Western Atlantic. Puerto Rico and Lesser Antilles ICA ( Guadeloupe).

REMARKS

First record from Guadeloupe and Lesser Antilles and second for the western Atlantic. Type locality is Ensenada Honda Culebra ( Puerto Rico). The specific status of this species should be confirmed by examination of more specimens. Based on variations on specimens photographed at St Martin (see Legall & Poupin 2016) it seems that characters retained by Rathbun (1923, 1925) are perhaps not of species level but in the range of morphological variations for Epialtus longirostris . In E. portoricensis the mask pattern on dorsal surface of carapace is almost the same than for E. longirostris (compare Figs 3 D-E).

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.