cochinchinensis (Pfeiffer, 1857)

Sutcharit, Chirasak, Ablett, Jonathan D. & Panha, Somsak, 2019, An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London, ZooKeys 842, pp. 1-65 : 1

27. cochinchinensis (Pfeiffer, 1857) Fig. 4D

Cyclostoma (Opisthophorus) cochinchinense Pfeiffer, 1857a [1856]: 337.

Pterocyclos cochinchinensis - Reeve 1863: volume 14, Pterocyclos , pl. 4, species 22.

Cyclotus cochinchinensis - Kobelt 1902: 209.

Current generic position.

Cyclotus Swainson, 1840

Type locality.

Cochinchina [south of Vietnam].

Type material.

Probable syntype NHMUK 20170354 (1 shell; Fig. 4D).

Remarks.

This species was described from specimens in the Cuming collection and only one set of shell measurements was given in the original description. The NHM collections contains a lot of a single shell from the Cuming collection with an original label, probably in Pfeiffer’s handwriting, stating the species name, however this has subsequently been overwritten. Reeve (1863) illustrated a single specimen from the Cuming collection. This single specimen closely matches the illustration in Reeve (1863) but is slightly larger than the shell dimensions given in the original description. Therefore, we consider this specimen to be a probable syntype.