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 Sinoennea perakensis (Godwin-Austen & Nevill, 1879) Figure 24B Materials examined. Prk 55 G. Pondok : BOR/ MOL 11498 , BOR/ MOL 11512 , BOR/ MOL 11561 , BOR/ MOL 11580 . Distribution. In Peninsular Malaysia, known from Gunung Pondok and Gapis Pass, Perak ( Maassen 2001 ). Elsewhere, in Jalor (=Yala), Thailand ( Maassen 2001 ). Remarks. Differ from sympatric Sinoennea hungerfordiana by its taller, straight, cylindrical shell, more whorls, more expanded peristome, lamella arrangement and denser radial ribs (but not as dense as Sinoennea lenggongensis ).