Grapsus lividus H. Milne Edwards, 1837

Ng, Ngan Kee, Rodríguez Moreno, Paula A., Naruse, Tohru, Guinot, Danièle & Mollaret, Noémy, 2019, Annotated type-catalogue of Brachyura (Crustacea, Decapoda) of the Muséum national d’Histoire naturelle, Paris. Part II. Gecarcinidae and Grapsidae (Thoracotremata, Grapsoidea), with an Appendix of pre- 1900 collectors, Zoosystema 41 (7), pp. 91-130 : 106

Grapsus lividus H. Milne Edwards, 1837

( Fig. 4A )

Grapsus lividus H. Milne Edwards, 1837: 85 .

CURRENT TAXONOMIC STATUS. — Geograpsus lividus (H. Milne Edwards, 1837) , accepted recombination (see Stimpson 1858: 101).

LECTOTYPE (by present designation). — MNHN-IU-2000-3426 (= MNHN-B3426 ), ♂ 16.4 × 19.1 mm, Antilles, Martinique, coll. M. Plée. — Original label: “ Grapsus lividus Edw. Martinique, M. Plée ”.

PRESERVATION OF THE LECTOTYPE. — Dry. RP 2 missing.

PARALECTOTYPES. — MNHN-IU-2000-1100 (= MNHN-B3426), 1 ♀ 13.7 × 15.8 mm, same data as lectotype . — MNHN-IU-2000-3427 (= MNHN-B3427), 1 ovig. ♀ 14.7 × 15.8 mm, 1 ♀ 13.0 × 16.9 mm, same data as lectotype .

PRESERVATION OF THE PARALECTOTYPES. — Dry.

REMARKS

Henri Milne Edwards (1837) indicated that the species was from the Antilles. His description mentioning at least two colour morphs (yellow with red marks; and almost entirely red) reveals that he has examined several specimens. The material collected by Plée in Martinique, his country of birth, most likely belongs to the type series according to the entry date “1826” of Plée’s material mentioned in the CAA (see also Bauchot et al. 1990: 117; Appendix). The specimen of “14 lignes” (1 ligne = 0.2255 cm), thus measuring 31.5 mm carapace length, cited by H. Milne Edwards (1837: 85) is no longer present in the MNHN collection, and all the MNHN specimens are smaller. The only male in the Plée material was selected as lectotype.

Figures

FIG. 4. — A, Grapsus lividus H. Milne Edwards, 1837, MNHN-IU-2000-3426 (= MNHN-B3426), lectotype, ♂; B, Grapsus maculatus H. Milne Edwards, 1853, MNHN-IU-2000-3414 (= MNHN-B3414), lectotype, ♂; C, Grapsus maurus Lucas, 1846, MNHN-IU-2000-3523 (= MNHN-B3523), lectotype, ♂; D, Grapsus oceanicus H. Jacquinot in Hombron & H. Jacquinot 1846, MNHN-IU-2000-10992 (= MNHN-B10992), lectotype, ♂, & MNHN-IU-2000-1104 (= MNHN-B10992), paralectotype, ♂; E, Grapsus ornatus H. Milne Edwards, 1853, MNHN-IU-2000-3415 (= MNHN-B3415), lectotype, ♂; F, Grapsus pelagicus H. Milne Edwards, 1853, MNHN-IU-2000-3450 (= MNHN-B3450), holotype, ♀. Scale bars: A, C, 10 mm; B, D, F, 2 cm; E, 5 cm.