Rediscovery of Canidia dorri Wattebled, 1886, with discussion of its systematic position (Gastropoda : Neogastropoda : Nassariidae : Nassodonta)

Canidia dorri Wattebled, 1886, described from Kao-hai Lagoon (near Hue, Vie tnam) but until now known only from its original description, was rediscove red in lower parts of rivers at Phan Ri, central Vietnam. Examination of mo rphology and radula of the species revealed, that it should be allocated to the family Nassariidae and, according to shell morphology, to the genus Na ssodonta II. Adams, 1867, This is the first confirmed record of genus Nasso donto outside Indian waters, The only other Asian species of the family Nas sariidae known to inhabit fresh or brackish waters were found in Lake Chilk a and other backwater areas in India.