Elysia cf. marginata (Pease, 1871) [Pterogasteron]

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cf. is an abbreviation from a Latin word (confer) and means 'refer to' or 'compare with', here it means it could possibly be Elysia marginata or perhaps something closely related, or at least similar in appearance.
Elysia cf. marginata can be distinguished by very fleshy parapodia whereas Elysia marginata has thin parapodias. The parapodias form 3 siphons, the black parapodial margin and a submarginal yellow or orange band are interrupted between the siphons.
This species is as Elysia sp. 2 in IPN on page 80,
it was posted on 3 June 2003 at these websites as Elysia cf. ornata (Swainson, 1840) [Thallepus], Krug et al. (2016)
restricted Elysia ornata to Atlantic waters and showed that there may be undescribed Indo-Pacific species, all members of the Elysia ornata clade.
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp.
Krug P.J., Vendetti J.E. & Valdés Á. (2016). Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region.
Zootaxa. 4148(1): 1-137., available online at https://doi.org/10.11646/zootaxa.4148.1.1
More information on Elysia cf. marginata as Elysia sp. 11 are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2021), published 8 May 2021, Elysia cf. marginata (Pease, 1871)
available from http://www.Philippine-Sea-Slugs.com/Sacoglossa/Elysia_marginata_cf.htm


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