Tenguella marginalba (Blainville, 1832)

Common Name: 
Mulberry Whelk
Distribution: 

Abundant in the Solitary Islands Marine Park. In Australia recorded on the east coast from Torres Strait to eastern Victoria and including Lord Howe Island.

Ecological Notes: 

Frequents intertidal and shallow sub-tidal zones.

Additional Notes: 

Shell solid with five spiral rows of nodules on body whorls. Outer lip thick, curved, with four teeth internally. Columella thickly calloused, smooth. External colour grey with black nodules; deep interior of aperture purple-grey, teeth white; outer lip cream or cream alternating with black or brown. Members of this family are carnivorous, feeding on worms and other hard shell molluscs by drilling a small circular hole in the shell of their prey. Grows to around 35 mm but usually less than 20 mm. Formerly known as Morula marginalba.

References: 

The Seashells of New South Wales, Des Beechey, Senior Fellow, Australian Museum, Release 25. Website at https://seashellsofnsw.org.au/Rapaninae/Pages/morula_marginalba.htm. Accessed 11/11/2018.