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Goniobranchus reticulatus

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

Goniobranchus reticulatus
B150318 Goniobranchus reticulatus.jpg
Tulamben, Bali, Indonesia
Scientific classification edit
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Infraclass: Euthyneura
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Chromodorididae
Genus: Goniobranchus
G. reticulatus
Binomial name
Goniobranchus reticulatus
(Quoy & Gaimard, 1832)[1]
  • Chromodoris reticulata (Quoy & Gaimard, 1832)
  • Doris reticulata Quoy & Gaimard, 1832 (basionym)
  • Risbecia reticulata (Quoy & Gaimard, 1832)


This species was described from Tongatapu.[1] It has been widely reported from the Indo-West Pacific Ocean.


There is considerable disagreement amongst experts over the identity of Goniobranchus reticulatus. The original description shows an animal with a white mantle, a red, reticulate pattern and a narrow white margin.[1] There are no round spots in the margin or amongst the reticulate pattern.[4] The length of the body reaches 100 mm.[5] A number of similar species are thought to occur within the Goniobranchus tinctorius colour group.[6][7]

The species is hermaphroditic, with both male and female organs active at the same time. After mating, the external portion of the penis detaches, but is able to regrow within 24 hours.[8][9]


  1. ^ a b c Quoy, J.R.C., & J.P. Gaimard. 1832-1833. Voyage de découvertes de l'Astrolabe exécuté par ordre du Roi, pendant les annees 1826-1827-1828-1829, sous le commandement de M. J. Dumont d'Urville. Zoologie, Mollusca 2:1-686 [1832, 1833] (Doris reticulata, p. 272), Atlas, pls. 1-26 [1833] (plate 20:9-11).
  2. ^ a b Bouchet, P. (2012). Goniobranchus reticulatus. Accessed through: World Register of Marine Species on 2012-05-07
  3. ^ Rudman W.B. (1984) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: a review of the genera. Zoological Journal of the Linnean Society 81 (2/3): 115-273. page(s): 207 Accessed through: World Register of Marine Species on 2012-02-26
  4. ^ Rudman, W.B., 1999 (October 30) Chromodoris tinctoria (Ruppell & Leuckart, 1828). [In] Sea Slug Forum. Australian Museum, Sydney.
  5. ^ Rudman, W.B. (1984). "The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: a review of the genera". Zoological Journal of the Linnean Society. 81 (2/3): 115–273 [207]. doi:10.1111/j.1096-3642.1984.tb01174.x.
  6. ^ 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): 221
  7. ^ 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. doi:10.1371/journal.pone.0033479. PMC 3323602.
  8. ^ Rebecca Morelle (12 February 2013). "Sea slug's 'disposable penis' surprises". BBC News.
  9. ^ Sekizawa, A.; Seki, S.; Tokuzato, M.; Shiga, S.; Nakashima, Y. (2013). "Disposable penis and its replenishment in a simultaneous hermaphrodite". Biology Letters. 9 (2): 20121150. doi:10.1098/rsbl.2012.1150. PMC 3639767. PMID 23407499.

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