Diplommatina pentaechma Laidlaw, 1949
“D. levigata Godwin-Austen 1876, from the Dafla Hills, from the Dafla Hills, Assam, shows similar processes on the peristome, an they occur as already noted, but to a much less striking extent in other Malayan species. The position of the species is doubtful, referred here for the present.” (Laidlaw, 1949)
Laidlaw (1949) original descriptions on Diplommatina pentaechma – “Shell ovate, with rather blunt spire, whorls about 6, ribbing not strong, variable in frequency. In the type about 16 ribs on the penultimate whorl which is slightly more inflated than the last. Suture not deep. Mouth vertical, roughly circular. Outer margin of peristome pentagonal, with four small, tooth-like processes, between which the margin is slightly concave in front view, and also from side to side. Last whorl tends to be horizontal near mouth.
Diplommatina pentaechma – “Length 2.4 mm. Breadth max. 1.3 mm.” (Laidlaw, 1949)
Type locality - Gua Musang, Kelantan (Laidlaw, 1949)