Diversity and biogeography of land snails (Mollusca, Gastropoda) in the limestone hills of Perak, Peninsular Malaysia Author Foon, Junn Kitt Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia & Rimba, 22 - 3 A, Casa Kiara 2, Jalan Kiara 5, 50480 Kuala Lumpur, Malaysia Author Clements, Gopalasamy Reuben Rimba, 22 - 3 A, Casa Kiara 2, Jalan Kiara 5, 50480 Kuala Lumpur, Malaysia & Department of Biological Sciences, Sunway University, No. 5 Jalan Universiti, 47500 Bandar Sunway, Selangor, Malaysia Author Liew, Thor-Seng Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia & Rimba, 22 - 3 A, Casa Kiara 2, Jalan Kiara 5, 50480 Kuala Lumpur, Malaysia thorsengliew@gmail.com text ZooKeys 2017 2017-07-04 682 1 94 http://dx.doi.org/10.3897/zookeys.682.12999 journal article http://dx.doi.org/10.3897/zookeys.682.12999 1313-2970-682-1 0AE82225C67E4D908BBEC30124E6C312 FFBCE458FFDBFFC93B2EFFB2F562FFBE 3484859 Diplommatina ventriculus (von Moellendorff , 1891) Figure 11C Materials examined. Prk 53 Hill KF : BOR/ MOL 10703 , BOR/ MOL 10745 , BOR/ MOL 10725 , BOR/ MOL 10681 . mykarst-184 Bat Cave : BOR/MOL 9883, BOR/MOL 9821. Prk 47 Kanthan : BOR/MOL 9180, BOR/MOL 9086. Prk 23 G. Rapat : BOR/ MOL 10219 , BOR/ MOL 10265 . mykarst-027: BOR/MOL 9117, BOR/MOL 9018, BOR/MOL 9027. Prk 64 Bt Kepala Gajah : BOR/ MOL 10157 . Prk 55 G. Pondok : BOR/ MOL 11493 , BOR/ MOL 11518 , BOR/ MOL 11554 , BOR/ MOL 11582 . Prk 34 G. Tasek : BOR/ MOL 11191 . Prk 01 G. Tempurung : BOR/ MOL 11234 , BOR/ MOL 11404 . Distribution. Found throughout Peninsular Malaysia ( Maassen 2001 ). Elsewhere, in Sumatra, Indonesia ( van Benthem Jutting 1959 ). Remarks. Shell dextral, rarely sinistral. Distinguished from other sympatric dextral congeners by its large shell, more globular whorls and weak columellar tooth.