Austromitra grovei: Fusiform and bulbous, length to 11.2 mm. Protoconch of 2 smooth shiny, glassy brown whorls. Adult shells with 5 whorls. Sutures well defined and simple, whorls convex, first three whorls with blunt axial ribs, and shiny. Penultimate whorl 10-12 blunt axial ribs. Body whorl smooth and bulbous, aperture wide and rounded. Columella with 4 columellar folds. Outer lip rounded, lip edge round and smooth, strong labral lirations visible within the aperture of adult shells but missing in juvenile specimens, siphonal notch wide and flared, siphonal canal very short. Base with 3 to 6 spiral groves. Colour varies as the shell matures, large shells with the body whorl tinged greyish blue on a purplish brown base, worn specimens tend towards bluish-brown. Two distinctive bands of faint white lightning-shaped streaks apparent on the body whorl, and a darker brown line can be distinguished in worn specimens, axials ribs often with cream cresting over the lower half of the rib. The fasciole is cream in colour generally commencing from the first columellar fold. The outer lip is cream in colour gradually fading into the typical greyish blue coloration.

Austromitra grovei: We compare Austromitra grovei n. sp. and Austromitra viridimuscus n. sp. to Austromitra analogica (REEVE, 1845) and Austromitra cinnamomea (A. ADAMS, 1855). Austromitra grovei n. sp. has been confused with Austromitra analogica since CERNOHORSKY'S revision of the Austromitra. Very little material of this species has been seen until recently collected by HUGH MORRISON in the Port Latta area. A closer examination of the Austromitra collection in the TMAG by the senior author has brought to light additional material. The species would appear to be closely related to Austromitra viridimuscus n. sp. However the species is substantially larger consistently, and has a white fasciole not found in viridimuscus n. sp. Austromitra grovei has defined sculptural axial ribs unlike A. viridimuscus n. sp. which has smooth whorls. The protoconch is generally much larger than in A. viridimuscus n. sp. The two faint white lightning bands can be compared to the less visable single band in A. viridimuscus n. sp. The body whorl of A. viridimuscus n. sp. is more bulbous than that of Austromitra grovei n. sp. which is more angular.

Austromitra grovei: Type Locality
Australia, N.W. Tasmania, E. of Stanley, Port Latta (West) (40.51° S, 145.23° E).
Distribution and Habitat
Australia, north western Tasmania coast. Intertidal under rocks.