ADDITIONAL INFORMATION OF AMPHIDROMUS INVERSUS ANNAMITICUS (CROSSE & P. FISCHER, 1863) (GASTROPODA, STYLOMMATOPHORA, CAMAENINAE) FROM VIETNAM

Abstract

As a part of the survey discovering the land snail fauna of Can Tho City, Vietnam, this study recorded snails for the first time in the city and an additional data on Amphidromus inversus annamiticus (Crosse & P. Fischer, 1863) for the plains of the Cuu Long River Delta. A. inversus annamiticus found in the study area has two types of shell spiraling, both dextral and sinistral, with or without a blackish brown spiral streak from the apex. All of the shells without that streak are sinistral and bigger in size compared to the ones with the color streak. Snail individuals were hibernating on the branches and trunks of landscape trees that include, Dipterocarpus alatus, Samanea saman, Khaya senegalensis, and Erythrina fusca.