Grapsus webbi H. Milne Edwards 1853

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).