Aplysia vaccaria Winkler, 1955

These large sea hares have been very common throughout the last half of 2017 at Anacapa and Santa Cruz. Their dark color and mostly closed parapodia help separate them from the sometimes similar Aplysia californica. These have been reported to reach just about a meter in length, which would make it the largest gastropod mollusk.

A swarm of large sea hares on the reeftop laying eggs.

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Created 7 February 2018

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