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GADILIDAE


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Gadila ludbrookae (Cotton & Godfrey, 1940)

Description: Shape slightly curved, slightly swollen near middle with an annular constriction at some point along the length between the apex and the aperture. Weight light. Aperture diameter 1.0 mm. Apex diameter 0.5 mm. Sculpture absent. Transverse sculpture absent. Aperture circular. Colour transparent when fresh, becoming opaque white with age.

Size: Up to 7 mm in length.

Distribution: Global distribution unknown. Assumed to be endemic to Australia with a distribution from central NSW, southward around southern Australia, to southern WA.

Habitat: Dredged from 80 to 155 m (Lamprell & Healy, 1998). Uncommon.

Comparison: This species stands out from the other species of Gadila because of the constriction in the shell.

Remarks: The exact position of the constriction is variable. According to the original description: “The relative length of the two portions varies, the earlier or the latter part may form nearly the whole, or there may be any intermediate proportion” (Cotton & Godfrey, 1940).

Fig. 1: SE of Kangaroo Island, SA, in 155 m (C.172603).

 

 


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