Hypselodoris apolegma

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

Hypselodoris apolegma
Hypselodoris apolegma at Bima bay, Indonesia
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
Superfamily:
Doridoidea
Family:
Chromodorididae
Genus:
Hypselodoris
Species:
H. apolegma
Binomial name
Hypselodoris apolegma
(Yonow, 2001)[1]
Synonyms
  • Risbecia apolegma Yonow, 2001

Taxonomic history

Recent phylogenetic data confirm the validity of the species and suggest a sister species relationship between Hypselodoris apolegma and Hypselodoris bullockii.[2] A later study revealed a large clade of animals with similar colouration with Hypselodoris brycei as sister species to H. apolegma.[3]

Distribution

This nudibranch is found in the tropical Western Pacific Ocean.[4]

References
  1. Yonow, N. 2001. Part 11. Doridacea of the families Chromodorididae and Hexabranchidae (Mollusca, Gastropoda, Opisthobranchia, Nudibranchia), including additional Moluccan material. [In] Results of the Rumphius Biohistorical Expedition to Ambon (1990). Zoologische Medelingen. Leiden, 75: (1-15) : 3-50
  2. Johnson R.F. & Gosliner T.M. (2012) Traditional taxonomic groupings mask evolutionary history: A molecular phylogeny and new classification of the chromodorid nudibranchs. PLoS ONE 7(4): e33479
  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.
  4. Rudman, W.B., 2002 (October 29) http://www.seaslugforum.net/factsheet/hypsapol Hypselodoris apolegma (Yonow, 2001).] [In] Sea Slug Forum. Australian Museum, Sydney.


  • Pair of H. apolegma at Batu Moncho (near Komodo, Indonesia)
  • Hypselodoris apolegma
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