Hypselodoris maculosa

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Hypselodoris maculosa
Hypselodoris maculosa.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Chromodorididae
Genus: Hypselodoris
Species:
H. maculosa
Binomial name
Hypselodoris maculosa
(Pease, 1871) [1]

Hypselodoris maculosa is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae. [2] [3]

Contents

Distribution

This nudibranch was described from Tahiti. It was thought to be widespread in the tropical Indo-Pacific Ocean with considerable variation in colour pattern. [3] A study employing DNA sequencing and more careful comparison of morphological differences revealed that many of these colour variations were in fact separate species. [4]

Description

Hypselodoris maculosa has a cream body with a brown margin to the mantle and four longitudinal white lines on its dorsum. There are slightly elongate dark purple-black spots in single irregular rows between the white lines. The brown margin is partly edged in white but extends in patches into the back with clusters of dark spots in these patches. The anterior end of the mantle and the part behind the gills are light-purple in colour with white and dark purple spots. The rhinophores are white, with a broad brown band just above the start of the lamellae and a narrow orange band above this. The gill leaves are brown basally, then white, with orange tips. [4] [5] [6] It can be distinguished from Hypselodoris decorata by having two instead of three rings on the rhinophores and details of the colouration. Hypselodoris yarae , Hypselodoris paradisa , Hypselodoris juniperae and several other species have previously been confused with Hypselodoris maculosa. [4]

This species can reach a total length of at least 32 mm [1] and has been observed feeding on grey sponges from the genus Euryspongia. [7]

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Hypselodoris zephyra is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

<i>Hypselodoris maridadilus</i> Species of gastropod

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Hypselodoris violacea is a species of sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

<i>Hypselodoris decorata</i> Species of gastropod

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References

  1. 1 2 Pease, W.H. (1871). "Descriptions of new species of nudibranchiate Mollusca inhabiting Polynesia". American Journal of Conchology 7(1): 11-19, Pls. 3-9, p. 16, pl. 7 figs 1a, 1b, 1c, 1d.
  2. ↑ MolluscaBase (2018). Hypselodoris maculosa (Pease, 1871). Accessed on 2019-01-11.
  3. 1 2 Rudman, W.B., 2003 (October 4) Hypselodoris maculosa (Pease, 1871). [In] Sea Slug Forum. Australian Museum, Sydney.
  4. 1 2 3 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.
  5. ↑ 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. 185
  6. ↑ Johnson, S. & Johnson, J., 2018. Hypselodoris maculosa Underwater Kwajalein, accessed 2018-01-11.
  7. ↑ Rudman, W.B., 2007 (Oct 16). Comment on Hypselodoris maculosa feeding by Bruce Wilkie. [Message in] Sea Slug Forum. Australian Museum, Sydney.


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