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| Opisthostoma somsakpanhai Dumrongrojwattana, Jaroonpongsawat & Tekavong, 2023 |
Abstract
Opisthostoma platyconcha sp. nov. and Opisthostoma somsakpanhai sp. nov. are described from limestone hills in the South of Thailand. These new species can be distinguished from their congeners by prominent shell characters: shape, number of radial ribs per 0.5 millimeters, and distinct constriction. This is the first report of Opisthostoma species in Phatthalung and Chumphon provinces; there are now three species of this genus in Thailand.
Keywords: diversity, leaf litter, limestone, microsnail, Prosobranchia
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| Opisthostoma somsakpanhai sp. nov. A.–E. Holotype ZRCBUU0789: A. left lateral view, B. top view, C. Protoconch with spiral striae, D. straight radial ribs on the penultimate whorl, and E. slightly curved radial ribs on the body whorl. F.–H. Paratype ZRCBUU 0796: F.left lateral view, G. right lateral view, and H. bottom view. I., J. O. somsakpanhai sp. nov. in natural habitat. Scale bar = 0.5 mm. |
Pongrat Dumrongrojwattana, Saruttaya Jaroonpongsawat and Rattanawadee Tekavong. 2023. Two New Species of Opisthostoma (Caenogastropoda: Diplommatinidae) from Southern Thailand. Tropical Natural History. Supplement 7; 181-186
