The freshwater snails (Gastropoda) of Iran, with descriptions of two new genera and eight new species Author Gloeer, Peter Biodiversity Research Laboratory, Schulstrasse 3, D- 25491 Hetlingen, Germany Author Pesic, Vladimir Department of Biology, Faculty of Sciences, University of Montenegro, Cetinjski put b. b., 81000 Podgorica, Montenegro text ZooKeys 2012 2012-09-04 219 11 61 http://dx.doi.org/10.3897/zookeys.219.3406 journal article http://dx.doi.org/10.3897/zookeys.219.3406 1313-2970-219-11 35A0EBEF815740B5BE499DBD7B273918 FFE7FFDBAA3AFF8BF81AFFD7FFCDFF87 577535 Kaskakia khorrasanensis sp. n. Figs 10a-d Type locality. Khorrasan Province, Kaskak stream in Kaskak village, 59°10'E , 35°25'N , ca. 1800 m asl., 11 June 2005. Holotype (ZMH 79372): Shell height 2.5 mm, width 1.9 mm. Paratypes (ZMH 79373): 21 ex. from type locality. Etymology. Named for its occurrence in Khorrasan Province. Description. The yellowish shell is conical to globular with 5.5 whorls, which are slightly convex and separated by a clear suture ( Fig. 10a ). The whorls increase rapidly with a prominent body whorl. The surface is glossy and finely striated. The apex is acute, the aperture is ovate and angled at the top, the umbilicus is closed. Shell height 2.3-2.5 mm, width 1.8-1.9 mm. Animal. The mantle and head are black. The penis is broad at the basis and tapered at the distal end ( Figs 10b-d ). Differentiating features. As for the genus. Distribution. Iran: Khorrasan Province; known only from type locality.