Ampullaria occlusa, Crosse & Fischer

Cowie, Robert H. & Héros, Virginie, 2012, Annotated catalogue of the types of Ampullariidae (Mollusca, Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 34 (4), pp. 793-824 : 810

occlusa Crosse & Fischer in Fischer & Crosse, 1888, Ampullaria ( Fig. 5D )

Ampullaria occlusa Crosse & Fischer in Fischer & Crosse, 1888: [explanation of] pl. 45, figs 3, 3a-c [1890: 111; Fischer & Crosse 1890: 244].

CURRENT TAXONOMIC STATUS. — Pomacea (Pomacea) . Synonym of Ampullaria flagellata Say, 1829 ( Cowie & Thiengo 2003: 71).

TYPE SPECIMEN. — Holotype MNHN 4514 , by monotypy ( ICZN 1999 b: art. 73.1.2).

TYPE LOCALITY. — [No locality given; “Tanesco, Guatemalae” ( Crosse & Fischer 1890: 112).]

REMARKS

Cowie & Thiengo (2003: 71) indicated 11 syntypes in two lots. However, the original publication conferring availability of Ampullaria occlusa was an illustration (with name) of a single shell. One shell, lacking an operculum, has “type” written on it and its labels say that it is the specimen figured. It corresponds very closely to the original illustration of Crosse & Fischer. We therefore consider it to be the holotype, by monotypy. The other ten specimens (MNHN 5143), all with opercula, have no type status. Sowerby (1909: 363) also reported finding type material of Ampullaria occlusa in the MNHN.

Figures

FIG. 5. — A, Lanistes neritoides Brown & Berthold, 1990, holotype MNHN 4515, 12.9 mm; B, Ampullaria neritoides d’Orbigny, 1835, probable syntype MNHN 4519, 97.2 mm; C, Afropomus balanoideus nimbae Binder, 1963, lectotype MNHN 4497, 18.8 mm; D, Ampullaria occlusa Crosse & Fischer in Fischer & Crosse, 1888, holotype MNHN 4514, 49.6 mm; E, Ampullaria ovata Olivier, 1804, syntype MNHN 4513, 64.3 mm; F, Ampullaria oviformis Deshayes, 1830, syntype MNHN 4512, 43.4 mm; G, Ampullaria perakensis Morgan,1885,lectotype MNHN 4511, 33.6 mm; H, Ampullaria peristomata d’Orbigny,1835,syntype MNHN 4509, 38.7 mm; I, Ampullaria pesmei Morlet, 1889, lectotype MNHN 4508, 30.2 mm.