Hypselodoris paradisa

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

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

Distribution

This nudibranch was described from Pig Island, Madang Lagoon, Madang, Papua New Guinea, 5.1634°S 145.83833°E / -5.1634; 145.83833. It is known only from Papua New Guinea.

Description

Hypselodoris paradisa has a translucent pink body with opaque white spots and diffuse purple markings at the head, tail and back of the mantle and a series of longitudinal dashed lines of white on the mantle. There are dark wine-red spots scattered evenly on the mantle, larger and more numerous at the edge. The gills are off white, with red tips and red on the outer faces. The rhinophores have off-white clubs with three orange rings and a transparent shaft. The colour pattern and body shape are similar to Hypselodoris decorata and Hypselodoris maculosa but this species is not in the same clade according to DNA results, which suggest that its closest relatives are Hypselodoris skyleri and Hypselodoris katherinae.[1][3]

This species is small, the holotype measured only 10 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 paradisa Gosliner & Johnson, 2018. Accessed through: World Register of Marine Species on 2018-10-02.
  3. Gosliner, T.M., Behrens, D.W. & Valdés, Á., 2018. Nudibranch and Sea Slug Identification - Indo-Pacific. New World Publications; 2nd Revised, Updated edition. 452 pp. ISBN 1878348671, ISBN 978-1878348678, p. 191
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