Hypselodoris bullockii

Hypselodoris bullockii
	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)
Synonyms
	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]

Distribution

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

Two very pale Hypselodoris bullockii of different sizes
The blue-color form, in Sipadan, Malaysia
A pale purple Hypselodoris bullockii
Hypselodoris bullockii, the dark purple color form, in a strong water current
A very pale purple Hypselodoris bullockii

References

^ 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.
^ ^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
^ ^a ^b [1] Hypselodoris apolegma (Yonow, 2001). Sea Slug Forum. Accessed 10 February 2009
^ 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
^ [2] Hypselodoris bullocki (Collingwood, 1881) - Page 1 Sea Slug Forum. Accessed 10 February 2009

Rudman W.B. (1995) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: further species from New Caledonia and the Noumea romeri colour group. Molluscan Research 16: 1-43. page(s): 41
Debelius, H. & Kuiter, R.H. (2007) Nudibranchs of the world. ConchBooks, Frankfurt, 360 pp. ISBN 978-3-939767-06-0 page(s): 116
Gosliner, T.M., Behrens, D.W. & Valdés, Á. (2008) Indo-Pacific Nudibranchs and seaslugs. A field guide to the world's most diverse fauna. Sea Challengers Natural History Books, Washington, 426 pp. page(s): 267
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.
Yonow N. (2012) Opisthobranchs from the western Indian Ocean, with descriptions of two new species and ten new records (Mollusca, Gastropoda). ZooKeys 197: 1–129. [22 May 2012],

External links

[CW-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.

[WoRMS-2] 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

[SSF-3] [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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