Grapsus granulosus H. Milne Edwards, 1853

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 : 105

Grapsus granulosus H. Milne Edwards, 1853

( Fig. 3G )

Grapsus granulosus H. Milne Edwards, 1853: 135 [169].

CURRENT TAXONOMIC STATUS. — Grapsus granulosus H. Milne Edwards, 1853 .

LECTOTYPE (by present designation). — MNHN-IU-2000-3417 (= MNHN-B3417 ), ♂ 64.2 × 71.9 mm, Red Sea, coll. M. Roux. — Original label: “ Grapsus granulosus , Mer Rouge, M. Roux ”.

PRESERVATION OF THE LECTOTYPE. — Dry. Carapace with a vertical crack on the right, a small chip off on the right posterior margin.

PARALECTOTYPES. — MNHN-IU-2000-3455 (= MNHN-B3455), 1 ♂ 61.8 × 67.0 mm, same data as lectotype . — MNHN-IU-2000-10937 (= MNHN-B10937), 1 ♂ 60.4 × 68.4 mm, 1 ♀ 54.1 × 59.2 mm, same data as lectotype .

PRESERVATION OF THE PARALECTOTYPES. — Dry.

REMARKS

The type locality is the Red Sea, and the collector “M. Roux” that is indicated on the label is likely J. L. F. P. Roux who collected material in the Mediterranean Sea and in the Near East ( Bauchot et al. 1990, 1997; see Appendix). Material brought from the Red Sea by Roux has 1835 as entry date in the CAA. Thus, these samples unambiguously belong to the type series, and a lectotype can be designated.

According to Ng et al. (2008: 216, 218), Grapsus granulosus was often regarded as a junior synonym of Grapsus albolineatus (e.g. Banerjee 1960: 147, 153-154; Davie 2002: 213), but Crosnier (1965: 15, pl. 2, fig. 1) and Holthuis (1977: 147, 148) commented that it is a distinct species (see also Vannini & Valmori 1981; Zaouali et al. 2007).

Figures

FIG. 3. — A, Pelocarcinus marchei A. Milne-Edwards, 1890, MNHN-IU-2000-3752 (= MNHN-B3752), lectotype, ♂; B, Thelphusa rotunda Quoy & Gaimard, 1824, MNHN-IU-2000-3745 (= MNHN-B3745), lectotype, ♂; C, Grapsus brevipes H. Milne Edwards, 1853, MNHN-IU-2000-10978 (= MNHN-B10978), lectotype, ♂; D, Grapsus cruentatus Latreille, 1803, MNHN-IU-2000-3407 (= MNHN-B3407), neotype, ♂; E, Grapsus fourmanoiri Crosnier, 1965, MNHN-IU-2008-10635 (= MNHN-B11803), lectotype, ♂; F, Grapsus gracilipes H. Milne Edwards, 1853, MNHN-IU-2000-3411 (= MNHN-B3411), lectotype, ♂; G, Grapsus granulosus H. Milne Edwards,1853,MNHN-IU-2000-3417 (= MNHN-B3417),lectotype,♂; H, Grapsus grayi H. Milne Edwards,1853,MNHN-IU-2000-3421 (= MNHN-B3421), lectotype, ♀. Scale bars: A-D, F, H, 2 cm; E, 10 mm; G, 5 cm.