Two New Species of Opisthostoma (Caenogastropoda: Diplommatinidae) from Southern Thailand
Keywords:
diversity, leaf litter, limestone,, microsnail, ProsobranchiaAbstract
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.
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