Hypselodoris bullockii

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Hypselodoris bullockii
Hypselodoris bullockii.JPG
Hypselodoris bullockii from Bima bay (Sumbawa, 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. bullockii
Binomial name
Hypselodoris bullockii
(Collingwood, 1881)[1]
  • Chromodoris bullockii Collingwood, 1881 (basionym)
  • Risbecia bullockii (Collingwood, 1881)

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

Hypselodoris bullockii is quite variable in color. Hypselodoris apolegma, which looks similar to this species (and distinguished by a reticulate pattern gradually merging in to the pinkish purple [3]), and was assumed to be possibly a different color form of H. bullockii.[3] However, recent phylogenetic data confirm the distinction of the two species, and suggest a sister species relationship between them.[4]


This nudibranch is found in the Tropical Western Pacific Ocean and the eastern Indian Ocean.[5]


  1. ^ Collingwood, C. 1881. On some new species of nudibranchiate Mollusca from the eastern seas. Transactions of the Linnean Society of London, Zoology, series 2, 2(2):123-140, pls. 9-10.
  2. ^ a b Bouchet, P.; Caballer, M. (2012). Hypselodoris bullockii. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=560043 on 2012-06-11
  3. ^ a b [1] Hypselodoris apolegma (Yonow, 2001). Sea Slug Forum. Accessed 10 February 2009
  4. ^ 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
  5. ^ [2] Hypselodoris bullocki (Collingwood, 1881) - Page 1 Sea Slug Forum. Accessed 10 February 2009

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