Borsonia torquayensis is an extinct species of sea snail, a marine gastropod mollusc, in the family Borsoniidae. Fossils of the species date to late Oligocene strata of the Port Phillip Basin of Victoria, Australia.
Description
In the original description, Powell described the species as follows:
The holotype of the species measures in height and has a diameter of . The body whorl is tumid, and the siphonal canal is short and wide.
Taxonomy
The species was first described by A. W. B. Powell in 1944. The holotype was collected prior to 1944 from Torquay, Victoria, Australia. It is a part of the H. J. Finlay Collection, which is held by the Auckland War Memorial Museum.
Distribution
This extinct marine species occurs in late Oligocene strata of the Port Phillip Basin of Victoria, Australia, including the Jan Juc Formation.
References