Helix (Cochlicella) obeliscus, S. Moricand, 1834

Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122

obeliscus, Helix (Cochlicella), S. Moricand, 1834b: 540 , pl. 1 fig. 4.

Type locality: Brésil, près de Caravelhas [Blanchet]. Holotype: MHNG-INVE-66256 (1) ( Subulinidae ) [ Fig. 68 ].

– Remarks. In the original paper Moricand stated “je n’en connais qu’un seul individu”. The lot found consists of nine specimens, but seems to be a mixture of specimens obtained at different times, as Moricand (1836b: 424) wrote “L’individu que j’ai figuré [in Moricand, 1834b] n’était pas adulte, j’en ai reçu depuis lors qui ont 16 tours de spire, et un autre plus grand encore”. The specimen closely matching the original dimensions has been figured and is considered the holotype.

Figures

Figs 67-79. Subulinidae, Pleurodontidae, and Haplotrematidae. (67-68) Subulinidae. (67) Obeliscus subuliformis (S. Moricand, 1836), syntype, MHNG-INVE-66259 (H = 28.7). (68) Obeliscus obeliscus (S. Moricand, 1834), holotype, MHNG-INVE-66256 (H = 84.4). (69-76) Pleurodontidae. (69-72) Isomeria equestrata (J. Moricand, 1858), syntype, MHNG-INVE-72607 (D = 38.6). (73-76) Labyrinthus tarapotonensis (J. Moricand, 1858), syntype, MHNG-INVE-72711 (D = 30.0). (77-79). Haplotrematidae. (77-79) Austroselenites moyobambensis (J. Moricand, 1858), syntype, MHNG-INVE-68036 (D = 27.2).