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 Georissa monterosatiana Godwin-Austen & Nevill, 1879 Figure 16C Materials examined. Prk 53 Hill KF : BOR/ MOL 10704 , BOR/ MOL 10754 , BOR/ MOL 10730 , BOR/ MOL 10669 . Prk 47 Kanthan : BOR/MOL 9084, BOR/MOL 9156. mykarst-184 Bat Cave : BOR/MOL 9868, BOR/MOL 9816, BOR/MOL 9838, BOR/MOL 9776. mykarst-027: BOR/MOL 9044, BOR/MOL 9132. mykarst-185 Batu Kebelah : BOR/MOL 9547, BOR/MOL 9591. Prk 23 G. Rapat : BOR/ MOL 10043 , BOR/ MOL 10240 , BOR/ MOL 10264 . Prk 36 Gua Datok: BOR/ MOL 10066 , BOR/ MOL 10430 , BOR/ MOL 10459 . Prk 64 Bt Kepala Gajah: BOR/ MOL 10189 . Prk 42 G. Bercham : BOR/ MOL 10606 . Prk 01 G. Tempurung : BOR/ MOL 11152 , BOR/ MOL 11228 , BOR/ MOL 11396 , BOR/ MOL 11423 . Prk 55 G. Pondok : BOR/ MOL 11499 , BOR/ MOL 11524 , BOR/ MOL 11544 , BOR/ MOL 11569 . Prk 34 G. Tasek : BOR/ MOL 11178 . Distribution. In Peninsular Malaysia, known from Perak, Kelantan, Pahang, Perlis and Selangor ( Maassen 2001 ). Elsewhere, in Jalor (=Yala), Thailand ( Maassen 2001 ). Remarks. Shell small. Differ from the sympatric Georissa semisculpta by its taller spire, pronounced and crenulated spiral ridges as well as less obtuse whorls. Shell colour yellow to red.