Styliferina goniochila (A. Adams, 1860b). Length, 3 mm; diameter, 1.25 mm. Shell: conic with a styliform apex; transparent with a spiral of white blotches around the periphery of the last whorl. Spire: protoconch styliform, of six whorls, the apical two whorls white, the others with a subsutural streak of dark brown; teleoconch of four convex whorls; suture impressed. Aperture: subovate; outer lip thin; columella barely sinuous. Sculpture: growth striae only. Color: transparent, a spiral of opaque white blotches around the periphery of the last whorl, sometimes also at the suture of others; apical whorls tinted red-brown. Animal: Head, foot, anterior part of the mantle and tentacles brown or gray-white, mottled with flake white, tentacles slender and very long in proportion to the length of the body.
These gastropods are locally common at depths of from 2 to 30 m, especially on Hawaii. They are remarkable for their fast growth rates and short life span: from premetamorphic veligers to reproductive adult requires less than three weeks (J. B. Taylor, 1975). They are herbivorous, feeding on detritus and algal film.
S. goniochila was described from Japan and has also been recorded from Cape York, Australia (R. B. Watson, 1886).