Leptograpsus ansoni 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 : 112

Leptograpsus ansoni H. Milne Edwards, 1853

( Fig. 6A )

Leptograpsus Ansoni H. Milne Edwards, 1853: 138 [172].

CURRENT TAXONOMIC STATUS. — Junior subjective synonym of Leptograpsus variegatus (Fabricius, 1793) ( Griffin 1973: 418, 423; Davie 2002: 216; Ng et al. 2008: 217).

LECTOTYPE (by present designation). — MNHN-IU-2000-4023 (= MNHN-B4023 ), ♂ 19.8 × 23.9 mm, Juan Fernández Islands , Chile. — Original label: “ Leptograpsus Ansoni H. M. Edwards , syntypes, Juan Fernandez”.

PRESERVATION OF THE LECTOTYPE. — Dry. Carapace with a small crack on left cardiac region; LP3 , RP4 missing.

PARALECTOTYPES. — MNHN-IU-2000-1105 (= MNHN-B4023), 1 juv. 10.3 × 12.1 mm, same data as lectotype . — MNHN-IU-2000-3519 (= MNHN-B3519), 1 ♂ 19.6 × 23.2 mm, same data as lectotype .

PRESERVATION OF THE PARALECTOTYPES. — Incomplete specimens.

REMARKS

The original samples MNHN-B4023 and MNHN-B3519 have an additional label by D. Guinot in 1972 with the indication “presumed syntypes ”. This was cited by Griffin (1973: 418), who mentioned “three syntypes ” in the MNHN when he recognised the species as a junior synonym of Leptograpsus variegatus . The specific name ansoni refers to the Commodore George Anson, famous for his Voyage around the world to disrupt or capture Spain’s Pacific possessions, reaching the Juan Fernández Archipelago in 1741.

Figures

FIG. 6. — A, Leptograpsus ansoni H. Milne Edwards, 1853, MNHN-IU-2000-4023 (= MNHN-B4023), lectotype, ♂; B, Leptograpsus bertheloti H. Milne Edwards, 1853,MNHN-IU-2000-10944 (= MNHN-B10944),lectotype, ♀; C, Leptograpsus gayi H. Milne Edwards, 1853, MNHN-IU-2000-3531 (= MNHN-B3531), lectotype, ♂; D, Leptograpsus rugulosus H. Milne Edwards,1853,MNHN-IU-2000-3534 (= MNHN-B3534),lectotype, ♂; E, Leptograpsus verreauxi H. Milne Edwards,1853, MNHN-IU-2000-4024 (= MNHN-B4024), lectotype, ♂; F, Metopograpsus eydouxi H. Milne Edwards, 1853, MNHN-IU-2000-3547 (= MNHN-B3547), lectotype, ♂. Scale bars: A, D, F, 10 mm; B, C, E, 2 cm.