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Pisinna laseroni Ponder & Yoo, 1976

Description: Shell minute, short spired for genus, spire outline straight. Protoconch of 1 whorls, minutely pitted, with distinct junction with teleoconch. Teleoconch up to 3 whorls, first whorl flat or concave, latter whorls weakly convex. Surface smooth, glossy. Aperture almost circular, relatively large; outer lip with very strong, smooth varix externally, often with thin, glassy shell growth beyond varix. Colour orange-pink, sutures margined each side with white, varix white.

Size: Up to 2.5 mm in length.

Distribution: Endemic to Australia: Port Stephens, NSW, southwards to Cape Everard, Victoria.

Habitat: "On the continental shelf, 36-273 m" (Ponder & Yoo, 1976). Rare.

Comparison: This species is unique within the genus in NSW by its subtidal habitat, and blunt smooth shell with very strong varix. Also see Comparison of Pisinna species.

Synonymy: None.

Fig. 1: Off lighthouse, Port Stephens, NSW (C.95030 Paratype)

 

Copyright Des Beechey 2010. Modified 2014