Janolus nakaza (Gosliner, 1981)
Bonisa nakaza is the only species in the genus Bonisa.
The gasflame nudibranch is a large and beautiful nudibranch densely covered with cerata. It is usually between 50 and 80 mm in length, but may reach 120 mm. It has highly variable coloration and may be pale-bodied with orange ceratal tips, yellow-bodied with blue ceratal tips, salmon-coloured with brown tips or even black with blue ceratal tips. Its rhinophores are perfoliate and vary in coloration with rest of animal, separated by a rhinophoral crest of unknown function.
This species of nudibranch feeds on bryozoans. The egg mass is globular, highly convoluted and usually attached to branched organisms, such as gorgonian sea fans. It is usually cream coloured, but may be pinkish.
- Gosliner, T.M. (1981). "The south African Janolidae (Mollusca, Nudibranchia) with the description of a new genus and two new species". Annals of the South African Museum. 86 (1): 1–42.
- Bouchet, P. (2012). Bonisa nakaza. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=225533 on 2012-06-03
- Gosliner, T.M. (1987). Nudibranchs of Southern Africa ISBN 0-930118-13-8
- Zsilavecz, G. (2007). Nudibranchs of the Cape Peninsula and False Bay. ISBN 0-620-38054-3
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