Keoki and Yukos' photo of a Red Sidegill Sea Slug (Pleurobranchus grandis), a large white slug with ruby-red compound tubercles which is uncommonly found on ledges in silty areas at scuba depths. It reaches at least 8 inches.
Red Sidegill Sea Slug (Pleurobranchus grandis)
From Stan & Debbie Hauter, About.com
Red Sidegill Sea Slug (Pleurobranchus grandis)
Keoki Stender©2009 About.com, a part of The New York Times Company.
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