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Chromodoris cf. striatella is as 'Chromodoris cf. striatella spotted' in Layton et al. (2018), though it has no black submarginal band as their Chromodoris striatella in supplementary material page 17.
The median longitudinal lines make it a Chromodoris balat, the spots at the sides make it a Chromodoris mandapamensis, both species have white specks on the gills and rhinophores.
Gosliner et al. (2015) place Chromodoris striatella Bergh, 1877 and Chromodoris mandapamensis Valdés, Mollo & Ortea, 1999 within the genus Goniobranchus Pease, 1866, WoRMS has them still as Chromodoris.
Gosliner, T.M, D.W. Behrens & Á.Valdés. 2015. Nudibranch &Sea Slug Identification Indo-Pacific.
New World Publications Inc. Jacksonville, FL. 408 pp.
MolluscaBase eds. (2020). MolluscaBase. Chromodoris striatella Bergh, 1877.
Accessed through: World Register of Marine Species
at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=558225 on 2020-07-31
Kara K.S. Layton, Terrence M. Gosliner, Nerida G. Wilson. Flexible colour patterns obscure identification and mimicry in Indo-Pacific Chromodoris nudibranchs (Gastropoda: Chromodorididae)
Molecular Phylogenetics and Evolution, 124, 27–36. https://doi.org/10.1016/j.ympev.2018.02.008
More information on Chromodoris striatella are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2020), published 31 July 2020, Chromodoris cf. striatella Bergh, 1877
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Chromodoris_striatella_cf.htm