Leptograpsus rugulosus 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 : 114

Leptograpsus rugulosus H. Milne Edwards, 1853

( Fig. 6D )

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

CURRENT TAXONOMIC STATUS. — Junior subjective synonym of Pachygrapsus transversus ( Gibbes, 1850) (see Poupin et al. 2005: 44).

LECTOTYPE (present designation). — MNHN-IU-2000-3534 (= MNHN-B3534 ), ♂ 12.9 × 16.1 mm, Brazil, coll. Gaudichaud. — Original label: “ Leptograpsus rugulosus Lamk. , Brésil, M. Gaudichaud ”.

PRESERVATION. — Dry. RP2-3, LP1, RP5 propodus and dactylus missing; LP4-5 carpus, merus and dactylus missing; ventral surface with elder stub.

REMARKS

Rathbun (1918: 245) mentioned that the type was in “ Paris Museum” but without listing any material. Although Leptograpsus rugulosus was recognised by Kingsley (1880), it is the junior synonym of Pachygrapsus transversus ( Gibbes, 1850) according to Poupin et al. (2005: 44).

The MNHN collection contains two samples that could have been seen by H. Milne Edwards in 1853: a complete and dry female specimen MNHN-IU-2000-3535 (= MNHN-B3535), collected from Rio de Janeiro by Peter Claussen (see Appendix), and a specimen MNHN-IU-2000-3534 (= MNHN-B3534) from Brasil collected by Charles Gaudichaud-Beaupré, who was a well-known, extremely active collector at that time in the MNHN (see Appendix). The first entry in the MNHN of South American material collected by Gaudichaud is from 1832, as indicated in the CAA. Henri Milne Edwards was used to mention the localities in accordance with the information provided by the collector, thus the type locality is “ Brésil ” and not “ Rio de Janeiro ”. The specimen MNHN-IU-2000-3534 (= MNHN-B3534) of Gaudichaud is selected as lectotype.

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.