Haminoea ovalis  Pease, 1868

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Haminoea ovalis is characterized by a white or greenish body covered with numerous rounded yellow or orange, black and purple spots. Sometimes there are also black markings. Haminoea ovalis feeds on algae.
Thanks for identification to Terrence M. Gosliner, USA
All of these species have rounded orange spots of various sizes and are very similar:
Haminoea sp. 01 which differs by its greenish-yellow, black and purple spots, none of them is surrounded by opaque white
Haminoea sp. 02 which lacks purple spots,
Haminoea sp. 04 which has a white appearance and large orange spots.
Haminoea cymbalum which has no black spots or markings, and differs by broad orange bands and spots surrounded by opaque white
More information on Haminoea ovalis are on Bill Rudman's Sea Slug Forum!
How to cite:
Köhler, E. (2016), published 24 June 2016, Haminoea ovalis  Pease, 1868
available from https://www.Philippine-Sea-Slugs.com/Cephalaspidea/Haminoea_ovalis.htm