How to Distinguish from Similar Species: Velutina velutina has an aperture longer than wide and has periostracal ridges which diverge as they approach the aperture. Its spire is depressed.
Geographical Range: Northern Alaska to central California
Depth Range: Usually sublittoral to 100 m, rarely intertidal
Habitat: Rocky areas; Most Velutina feed on and associate with tunicates.
Members of this family feed on and associate with tunicates and lay
eggs on the tunicates as well.
Kozloff, 1987, 1996
General Notes and
abundances, unusual behaviors:
I have rarely found this shell, but it can be found both on
coast and in Deception Pass.
The groups of dark bands at the edges of the mantle can be seen in this live individual sitting on my hand. Photo by Dave Cowles, July 2010
The aperture is approximately as wide as it is long. Notice also the mantle scars inside the aperture to the right. (the head was to the right)
This preserved specimen from the Rosario museum was found in
Pass by D. Graham in 1987 and identified by Dave Cowles in
Shell length 2 cm.
Authors and Editors of Page:
Dave Cowles (2010): Created original page
CSS coding for page developed by Jonathan Cowles (2007)
Rosario Invertebrates web site provided courtesy of Walla Walla University