Hypselodoris cerisae

Hypselodoris cerisae is a species of sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.[2]

Hypselodoris cerisae
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Chromodorididae
Genus: Hypselodoris
Species:
H. cerisae
Binomial name
Hypselodoris cerisae
Gosliner & Johnson, 2018[1]

Distribution

This nudibranch was described from Long Dong, Taipei County, Taiwan with additional specimens from Hachijo Island, Japan and Pulau Aur, Malaysia. It was previously mistaken for Hypselodoris krakatoa.[3].

Description

Hypselodoris cerisae has a translucent white body with extensive opaque white patches centred with yellow. On the back the patches are created by a series of dark brown lines and spots arranged to form an irregular rectangular meshwork with a similar pattern on the sides of the body and tail. There are white spots associated with the strongest of these lines, which run from outside the bases of the rhinophores along the body to join behind the gills. There is a mid-dorsal line which starts as a ring between the rhinophores and finishes in front of the gill pocket; it is often interrupted. There is irregular purple pigment at the mantle edge, paler and more extensive at the front of the head. The gills have orange pigment lines at the sides and a white outer face. The rhinophores have orange-brown clubs and orange bases.[1][4] This species can reach a total length of at least 35 mm.[1]

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References
  1. 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.
  2. MolluscaBase (2018). Hypselodoris cerisae Gosliner & Johnson, 2018. Accessed on 2018-09-20.
  3. Rudman, W.B., 2002 (Jun 28). Comment on Re: Hypselodoris krakatoa? from Taiwan by Nishina Masayoshi. [Message in] Sea Slug Forum. Australian Museum, Sydney.
  4. Gosliner, T.M., Behrens, D.W. & Valdés, Á., 2018. Nudibranch and Sea Slug Identification - Indo-Pacific. New World Publications; 2nd Revised, Updated edition (1 Nov. 2018) 452 pp. ISBN 1878348671, ISBN 978-1878348678, p. 187
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