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Badepigrus protractus (Hedley, 1904)

Description: Shell minute, tall and elongate, last whorl uncoiled. Protoconch paucispiral, rounded, with spiral rows of minute pits, and distinct junction with teleoconch. Teleoconch up to 4 rounded whorls (but usually 3), smooth or with oblique growth ridges. Aperture oval to D-shaped, with no anterior or posterior canals. Aperture free from last whorl, with edge thickened all around. Umbilicus closed. Colour fawn or amber.

Size: Up to 1.8 mm in length, but usually about 1.3 mm.

Distribution: Endemic to Australia: Bowen, Queensland, to Sydney, NSW.

Habitat: In Queensland, apparently common in beach washup. In NSW, known from only a few specimens dredged in less than 15 m from Sydney Harbour.

Comparison: Distinguished by the final section of the last whorl being detached.

Synonymy: Previously recognised synonyms are Saltatricula stringera Laseron, 1956 and Saltatricula ballerina Laseron, 1956.

Fig. 1: Sarina Beach, Queensland (C.213734)


Copyright Des Beechey 2010