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Paper Bubble Sea Slug

Hydatina physis


A large, mostly dark purple sea slug with bluish edges and a lightly calcified shell. Sometimes found washed up in tide pools but mostly found on coral reefs. Highly specialized predators that feed specifically on cirratulid polychaete worms.


A tide pool in Collaroy, NSW, Australia

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Spotted on Jan 4, 2014
Submitted on Jan 7, 2014

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