Costasiella sp. e534

Like Costasiella vegae, this unidentified species of Costasiella seems relatively common in the Marshalls, where it is found almost exclusively on clumps of what appears to be the algae Avrainvillea amadelpha. Both species of Costasiella may inhabit the same clump of algae. The algae grows in fairly large solitary clumps on the sandy lagoon slope at depths of 6 to 15m. The animals shown on this page appear to be the species called Costasiella sp. 1 on the Sea Slug Forum.

Created 17 August 2008