Alvania maclurgi
Alvania maclurgi is a species of marine gastropod mollusc in the family Rissoidae. Endemic to New Zealand, the species is found in the waters of the Chatham Islands, Bounty Islands, and on the Mernoo Bank.
Description
In the original description, Powell described the species as follows:The species measures by. The axials are beaded at the points where they intersect other axials. The species can be identified due to its smaller number of spiral chords.
Taxonomy
The species was first described by A. W. B. Powell in 1933, who used the name Linemera maclurgi. Powell named the species after Tom MacClurg, the owner of the launch who assisted in the dredging operation that led to the discovery of the holotype. In 1985, Winston Ponder recombined Linemera as a subgenus of Alvania, leading to the species' name becoming Alvania maclurgi. The representation Alvania maclurgi without a subgenus is the currently accepted name.The holotype was collected in February 1933 by either A.W.B. Powell and/or C.A. Fleming off the coast of Owenga Beach, Chatham Islands, at a depth of. The holotype is held by the Auckland War Memorial Museum.