Bulimus plumbeus Pfeiffer, 1855

Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 41

Bulimus plumbeus Pfeiffer, 1855 Figs 6iv-vi, L16i

Bulimus plumbeus Pfeiffer 1855d: 114; Pfeiffer 1859: 369; Breure 1979: 44.

Strophocheilus plumbeus ; Pilsbry 1895 [1895-1896]: 49.

Thaumastus (Thaumastus) plumbeus ; Breure 1978: 31, pl. 11 fig. 1 (lectotype designation).

Type locality.

“Venezuela”.

Label.

“Venezuela”. M.C. label style III.

Dimensions.

"Long. 93, diam. 36 mill.". Figured specimen H 93.0, D 40.5, W 5.9.

Type material.

NHMUK 1975130, lectotype; 1975131, one paralectotype (Cuming coll.).

Remarks.

Pfeiffer did not state on how many specimens his description was based, but described his material "from the collection of H. Cuming". Although there is no label in Pfeiffer’s handwriting, the type status of these specimens is not disputed as the shell height matches the original data. This taxon has been considered a junior subjective synonym of Helix (Cochlogena) pardalis Férussac, 1821 ( Richardson 1995: 202), but re-examination of the type leads us to tentatively retain the classification of Breure (1978). It may be noted that the locality of this taxon is well outside the range of Thaumastus ; however, it could possibly occur in southwestern Venezuela. Once located, further anatomical and molecular studies should shed more light on its systematic position.

Current systematic position.

Megaspiridae , Thaumastus plumbeus (Pfeiffer, 1855).