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Cingulina spina Crosse & Fischer, 1864

Description: Shell large, elongate and slender, spire almost straight-sided, up to about 15 whorls. Protoconch (Type B) coiled, about 1 whorls, set on teleoconch with axis inclined at about 110 to teleoconch axis. Teleoconch whorls straight-sided, sculptured with 3 strong spiral cords with very fine axial threads between; suture indistinct. Aperture wide, short; no plaits on columella. Colour opaque white.

Size: Up to 13 mm in length.

Distribution: Papua New Guinea and Australia. Known from all of the Australian coastline, including Tasmania, except Darwin to Torres Strait.

Habitat: Known mainly from beach washup. Common.

Remarks: This species is variable in height to width ratio. Specimens of length 5 mm vary in last whorl width from 1.1 to 1.5 mm.

Vafiadis (2007, Fig. 2g)) described the external features of the animal and figured the head-foot.

Fig. 1: Port Stephens, NSW. Dredged in 5 m. (C.342662). The figured specimen is slightly bent, which is not typical of the species.

 

Copyright Des Beechey 2016