Discartemon collingei (Sykes, 1902)

Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben & Panha, Somsak, 2014, Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae), ZooKeys 401, pp. 45-107 : 78

20. Discartemon collingei (Sykes, 1902) Figs 8H, 23

Streptaxis collingei Sykes, 1902: 22, 60, pl. 3, figs 8-10. Type locality: Kelantan, Malay Peninsula. Gude 1903: 214. Laidlaw 1933: 233.

Streptaxis (Discartemon) collingei - Möllendorff 1902: 136.

Odontartemon (Discartemon) collingei - Laidlaw 1929: 260.

Discartemon collingei - Benthem Jutting 1954: 79, 83, fig. 4. Benthem Jutting 1959: 168. Berry 1965: 28, 29. Richardson 1988: 182. Maassen 2001: 87. Marwoto 2008: 192.

Material examined.

Syntype NHMUK 1937.7.9.20 (1 shell; Fig. 8H). Kelantan, Malaysia: NMW 1955.158.25250 (2 shells). Kelantan, Malaysia: NHMW 40716 (1 shell).

Remarks.

Shell globose-heliciform, translucent, with a conical spire with a distinct suture. Shell surface with transverse ridges that diminish below periphery; varices present. Later whorls slightly axially deflected. Last whorl shouldered and regularly expanded; umbilicus wide and deep. Aperture sub-quadrangular; peristome thick, expanded and reflected. Apertural dentition with one parietal, one palatal, one basal and one columellar lamella (Fig. 8H).

Discartemon collingei is similar to Discartemon lemyrei , but the latter species has a larger shell with a higher spire, a shell surface with transverse ridges, the last whorl rounded and more inflated, a narrower umbilicus, and only one parietal lamella.