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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.[2] [1]


This marine species occurs off the Philippines.


The length of the body reaches 100 mm.

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.[3][4]



  1. ^ a b Bouchet, P. (2012). Goniobranchus reticulatus. Accessed through: World Register of Marine Species at on 2012-05-07
  2. ^ 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 at on 2012-02-26
  3. ^ Rebecca Morelle (12 February 2013). "Sea slug's 'disposable penis' surprises". BBC News. 
  4. ^ 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. 


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