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Polyschides andersoni Lamprell & Healy, 1998

Description: Shape curved, inflated at anterior quarter. Weight light. Aperture diameter 3.7 mm. Apex 5-lobed; diameter 1.6 mm. Sculpture absent. Transverse sculpture absent. Aperture slightly compressed. Colour transparent when fresh, becoming opaque white with age.

Size: Up to 22 mm in length.

Distribution: Global distribution unknown. Assumed to be endemic to Australia with a distribution from central NSW to eastern SA.

Habitat: Dredged in sand and mud from 153 to 1555 m (Lamprell & Healy, 1998). Uncommon.

Comparison: When describing this species, Lamprell & Healy (1998: 170) said: Polyschides andersoni differs from P. gibbosus (Verco, 1911) and P. sutherlandi n.sp. in having a marked swelling towards the aperture and in having five apical lobes [in contrast to] three notches and three lobes apically in P. sutherlandi; four notches and four lobes in P. gibbosus.

Remarks: In Lamprell & Healy (1998) there is an error in the figure showing this species (pers. obs.). In Fig. 175, components E and F have been interchanged; thus 175E is actually P. sutherlandi and 175F is actually P. andersoni.

Fig. 1: Off Wollongong, NSW, in 1200 m (C.174896 HOLOTYPE). Photo Australian Museum.


Copyright Des Beechey 2020