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 Alycaeus gibbosulus (Stoliczka, 1872) Figure 4C Materials examined. mykarst-025: BOR/MOL 9382, BOR/MOL 9416, BOR/MOL 9436, BOR/MOL 9500. mykarst-027: BOR/MOL 9106. Prk 23 G. Rapat : BOR/ MOL 10286 . Prk 55 G. Pondok : BOR/ MOL 11523 , BOR/ MOL 11538 . Distribution. Found throughout Peninsular Malaysia. Elsewhere, in southern Thailand ( Maassen 2001 ). Remarks. Small shell. Globular, convex whorls. Very similar to Alycaeus conformis , differs only by the more expanded penultimate whorl and calcrete-encrusted operculum exterior.