Helix onca d'Orbigny, 1835

Breure, Abraham S. H. & Ablett, Jonathan D., 2011, Annotated type catalogue of the Amphibulimidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 138, pp. 1-52 : 18

Helix onca d'Orbigny, 1835 Figs 19A-C, 19i

Helix onca d'Orbigny 1835: 8.

Bulimus onca d'Orbigny 1837 [1834-1847]: 295, pl. 30 figs 1-2; Gray 1854: 19.

Type locality.

Not given. [Bolivia] "...non loin du dernier point habité de Tutulima" in d'Orbigny 1837 [1834-1847]; see Breure (1973) for precise data.

Label.

"Yuracares (Bolivia)", label in d'Orbigny's handwriting.

Dimensions.

"Longit. 62 millim.; latit. 25 millim."; lectotype H 66.5, D 25.9, W 5.4.

Type material.

NHM 1854.12.4.120, lectotype and three paralectotypes (d'Orbigny coll.).

Remarks.

The locality on the label corresponds to the type locality of Helix pentadina d'Orbigny, 1835, which has been synonymized with Helix onca by subsequent authors; the former name has page precedence. The specimen corresponding to d'Orbigny 1837 [1834-1847]: pl. 30 fig. 1 is now selected lectotype (design. n.). According to Gray (1854) the type specimen of Bulimus pentadinus d'Obigny is missing.

Current systematic position.

Amphibulimidae , Plekocheilus (Eurytus) pentadinus (d'Orbigny, 1835).

Figures

Figure 19. A-C, i Plekocheilus (Eurytus) pentadinus (d'Orbigny, 1835), lectotype of Helix onca d'Orbigny, 1835 (H = 66.5).