Grapsus webbi 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 : 111-112

Grapsus webbi H. Milne Edwards, 1853

( Fig. 5F )

Grapsus Webbi H. Milne Edwards, 1853: 133 [167].

Grapsus strigosus – Brullé 1839: 15. Non Grapsus strigosus (Herbst, 1799) (see under Grapsus pelagicus ).

CURRENT TAXONOMIC STATUS. — Junior subjective synonym of Grapsus adscensionis (Osbeck, 1765) (see Türkay 1982: 122; Manning & Chace 1990: 64).

LECTOTYPE (by present designation). — MNHN-IU-2000-3457 (= MNHN-B3457 ), ♂ 28.4 × 31.0 mm, Canary Islands, coll. M. Berthelot. Grapsus webbi H. Milne Edwards, 1853 , syntype, revid. M. Türkay, IV-1977. — Original label: “ Grapsus Webbi Edw. maculatus Catesby , Iles Canaries, M. Berthelot”. Additional label: “ Grapsus webbi H. Milne Edwards, 1853 , syntype, revid. M. Türkay, IV-1977 ”.

PRESERVATION OF THE LECTOTYPE. — Dry. RP 1, RP5 missing.

PARALECTOTYPES. — MNHN-IU-2000-10979 (= MNHN-B10979), 1 ♂ 54.6 × 62.2 mm, 1 ♀ 32.6 × 38.5 mm, Canary Islands, coll. M. Berthelot. Grapsus webbi H. Milne Edwards, 1853 . — Original label: “ Grapsus grapsus Linné ( Grapsus Webbi Edw. ), Iles Canaries, M. Berthelot ” .

PRESERVATION OF THE PARALECTOTYPES. — Dry.

REMARKS

Henri Milne Edwards (1853) described this species based on the material collected by Webb & Berthelot who are well known for their exploration of the Canary Islands where they have gathered a considerable amount of material of all kinds (see Appendix). In their masterpiece “ Histoire naturelle des îles Canaries ”, the part Crustacea has been authored by G. A. Brullé, and this crab was identified as Grapsus strigosus by Brullé (1839: 15), before it was recognised as new by H. Milne Edwards, (1853: 133 [167]) and dedicated to Webb, then synonymised to Grapsus adscensionis (Osbeck, 1765) .

Figures

FIG. 5. — A, Grapsus peroni H. Milne Edwards, 1853, MNHN-IU-2000-10934 (= MNHN-B10934), lectotype, ♂; B, Grapsus pharaonis H. Milne Edwards, 1853, MNHN-IU-2000-3439 (= MNHN-B3439),lectotype,♂; C, Grapsus pictus Latreille 1803,MNHN-IU-2000-3409 (= MNHN-B3409),neotype,♀; D, Grapsus plicatus H. Milne Edwards,1837,MNHN-IU-2000-3585 (= MNHN-B3585),lectotype,♀; E, Grapsus rudis H. Milne Edwards, 1837,MNHN-IU-2000-10875 (= MNHN-B10875), holotype, ♂; F, Grapsus webbi H. Milne Edwards, 1853, MNHN-IU-2000-3457 (= MNHN-B3457), lectotype, ♂. Scale bars: A, F, 2 cm; B, E, 5 cm; C, D, 10 mm.