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This species is as Hypselodoris sp. 3 in IPN at page 265.
Pretty similar are
Hypselodoris skyleri Gosliner & R.F. Johnson, 2018 which has also bluish spots at the mantle magin, and brown longitudinal lines, it differs by the rhinophores: translucent white with three orange bands, and by minute opaque white spots on the amntle.
Hypselodoris sp. 06 which has also bluish spots at the mantle magin, it differs by the mottled background colour, and by translucent patches on the mantle near the rhinophores.
This species was posted at these websites on 11 February 2005 as Hypselodoris sp. B Genus: Stimpson, 1855, and changed on 15 August 2011
into Hypselodoris sp. 02 Genus: Stimpson, 1855.
For some genera, such as Trinchesia was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I had chosen
2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.
This specimen was thought to be distinct, it was posted on 17 August 2011 at these websites as Hypselodoris sp. 05 Genus: Stimpson, 1855.
I changed Hypselodoris sp. 02 and Hypselodoris sp. 05 on 28 September 2018 into Hypselodoris katherinae Gosliner & R.F. Johnson, 2018.
Let me quote Epstein et al. (2018) on the etymology:
"This species is named for Katherine Piatek, Senior Program Manager of the Institute of Biodiversity Science and Sustainability at the California Academy of Sciences, who has provided immense support for the research undertaken in the Philippines. Her assistance has been crucial to the successful completion of many research expeditions."
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs.
Sea Challengers Natural History Books. Gig Harbor, Washington. 426pp.
Epstein, H. E.; Hallas, J. M.; Johnson, R. F.; Lopez, A.; Gosliner, T. M. (2018). Reading between the lines: revealing cryptic species diversity and colour patterns in Hypselodoris nudibranchs (Mollusca: Heterobranchia: Chromodorididae).
Zoological Journal of the Linnean Society. 2018, XX, 1–74. With 40 figures., available online at https://doi.org/10.1093/zoolinnean/zly048
More informations on Hypselodoris katherinae as Hypselodoris sp. are at Mike Miller's Slug Site!
How to cite:
Köhler, E. (2020), published 12 June 2020, Hypselodoris katherinae Gosliner & R.F. Johnson, 2018 in Epstein et al., 2018
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Hypselodoris_katherinae.htm