Opisthostoma megalomphalum van Benthem Jutting, 1952

Foon, Junn Kitt, Clements, Gopalasamy Reuben & Liew, Thor-Seng, 2017, Diversity and biogeography of land snails (Mollusca, Gastropoda) in the limestone hills of Perak, Peninsular Malaysia, ZooKeys 682, pp. 1-94 : 2

Opisthostoma megalomphalum van Benthem Jutting, 1952 Figure 13D

Materials examined.

Prk 23 G. Rapat: BOR/ MOL 10215 , BOR/ MOL 10035 , BOR/ MOL 10245 , BOR/ MOL 10271 .

Distribution.

Known from Kramat Pulai ( van Benthem Jutting 1952) and Gunung Rapat only, but surrounding hills have yet to be adequately surveyed.

Remarks.

Differ from other flat-shelled congeners by the convexity of the whorl, larger umbilicus, the position of apical and antepenultimate whorls and the direction the aperture is facing ( van Benthem Jutting 1961a).

Figures

Figure 13. A Opisthostoma fallax van Benthem Jutting, 1961 BOR / MOL 9755. Perak, Ipoh, Batu Kebelah Plot 4 B Opisthostoma gittenbergeri Vermeulen & Clements, 2008 BOR / MOL 10452. Perak, Ipoh, Gunung Datok C Opisthostoma ' Kanthan 1 ' BOR / MOL 9182. Perak, Ipoh, Gunung Kanthan Plot 3 D Opisthostoma megalomphalum van Benthem Jutting, 1952 BOR / MOL 10271. Perak, Ipoh, Gunung Rapat Plot C 7 E Opisthostoma ' mykarst- 025 1 ' BOR / MOL 12506. Perak, Ipoh, Mykarst- 025 Plot 4.