Assiminea parvula
Assiminea parvula is a species of small salt marsh snail with an operculum, an aquatic gastropod mollusk, or micromollusks, in the family Assimineidae.
;Subspecies:Assiminea parvula dinagatensis Assiminea parvula guamensis Assiminea parvula marshallensis Abbott, 1958Assiminea parvula nitidula Thiele, 1927Assiminea parvula parvula Assiminea parvula pseudoquadrasi Assiminea parvula pygmaea Assiminea parvula quadrasi Möllendorff, 1895
Description
The length of the shell attains 3⅓ mm, is diameter 2¼ mm.The shell is scarcely imperforate, ovate and elongately conical. It is finely striate, somewhat shiny, and uniformly reddish-horny. The spire is subconvex-conical. The apex is minute, and it is neither sharp nor blunt. The suture is linear and slightly impressed. The shell has five rather convex whorls. The body whorl is quite large, ovately rounded, convex below, and strongly rounded, but not angled, at the