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Marsenina stearnsi (Stearn's ear shell)
Copyright © 2007
Mary Jo Adams
With its small size (to 0.8 in./2 cm.) and camouflaging coloration, Marsenina stearnsi is nearly invisible on the white glove leather ascidian (Tridemnium opacum) that it lives on. Although this small creature looks very much like a sea slug, it is not, but instead belongs to the family Velutinidae. Like a snail, it has a shell but the shell is flattened and enveloped by the mantle. This species can be found from the intertidal to a depth of 60 feet/20 m. and ranges from Alaska to northern Mexico.
This
page was created by Mary Jo Adams on 3/19/07.
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