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Placida sp. 01  Genus: Trinchese, 1876

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Placida sp. 01 is charcterized by a translucent whitish body, cerata and rhinophores. The dark green/brown digestive gland does not completely fill the cerata and branches in the rhinophores. The cerata and rhinophores have minute white flecks.
This species is most probably Placida sp. 3 in IPN, page 73 which is known from Vanuatu and Saipan, though it looks pretty similar to some specimens on the internet which are misidentified as Placida dendritica (Alder & Hancock, 1843) [Calliopaea],
which is probably a complex of distinct species, or to a specimen from Moorea Island, French Polynesia which was identified by the sacoglossan expert Kathe R. Jensen as Ercolania sp. Genus: Trinchese, 1872, and to Ercolania sp. 5 on Bill Rudman's Sea-Slug Forum,
Dr. Alicia Hermosillo-González labeled it Placida sp. 2.JPG.
Reference:
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp.