Cyclophorus semisulcatus (Sowerby, 1843)

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

Cyclophorus semisulcatus (Sowerby, 1843) Figure 6F

Materials examined.

Prk 64 Bt Kepala Gajah: BOR/ MOL 10119 , BOR/ MOL 10085 , BOR/ MOL 10132 , BOR/ MOL 10163 . mykarst-027: BOR/MOL 9048. Prk 23 G. Rapat: BOR/ MOL 10224 , BOR/ MOL 10200 , BOR/ MOL 10248 . Prk 47 Kanthan: BOR/MOL 9139. mykarst-185 Batu Kebelah: BOR/MOL 9524, BOR/MOL 9559, BOR/MOL 9577. Prk 36 Gua Datok: BOR/ MOL 10448 . Prk 42 G. Bercham: BOR/ MOL 10588 . Prk 55 G. Pondok: BOR/ MOL 11501 , BOR/ MOL 11533 , BOR/ MOL 11475 .

Distribution.

In Peninsular Malaysia, known from Pahang, Kelantan, Selangor and Perak only ( Maassen 2001).

Remarks.

Distinguished from congeners by its small to large shell, pronounced spiral ridges and somewhat keeled periphery. Colour pattern highly variable.

Figures

Figure 6. A Chamalycaeus oligopleuris (von Moellendorff, 1886) BOR / MOL 11616. Perak, Ipoh, Gunung Pondok B Chamalycaeus parvulus (von Moellendorff, 1886) BOR / MOL 11615. Perak, Ipoh, Gunung Pondok C Crossopoma albersi (Pfeiffer, 1847) BOR / MOL 9134. Perak, Ipoh, Gunung Kanthan Plot 2 D Cyclophorus malayanus (Benson, 1852 a) BOR / MOL 9578. Perak, Ipoh, Batu Kebelah Plot 3 E Cyclophorus perdix perdix (Broderip & Sowerby, 1829) BOR / MOL 8274. Perak, Ipoh, Iron hill summit F Cyclophorus semisulcatus (Sowerby, 1843) BOR / MOL 9577. Perak, Ipoh, Batu Kebelah Plot 3.