Rostanga byga
Rostanga byga is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Discodorididae.
| Rostanga byga | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Nudibranchia |
| Suborder: | Doridina |
| Superfamily: | Doridoidea |
| Family: | Discodorididae |
| Genus: | Rostanga |
| Species: | R. byga |
| Binomial name | |
| Rostanga byga Er. Marcus, 1958[1] | |
Distribution
This species was described from the Caribbean Sea. Its distribution includes also Rio de Janeiro State, southeastern Brazil.[2][3]
Description
This doric nudibranch is bright orange to reddish orange in colour, and the dorsum is covered with caryophyllidia; it is very similar to other species of Rostanga. The colour is very uniform, but the rhinophores have white tips.[1][4]
The maximum recorded body length is 20 mm.[5]
Ecology
The prey of Rostanga byga includes the sponge Mycale microsigmatosa.[2] Recorded from depths of 0 m (0 ft) to 65 m (213 ft).[5]
References
- Marcus, E. (1958) On western Atlantic opisthobranchiate gastropods. American Museum of Natural History, Novitates, 1906: 1-82.
- Belmonte T., Alvim J., Padula V. & Muricy G. (2015). "Spongivory by nudibranchs on the coast of Rio de Janeiro state, southeastern Brazil". Spixiana 38(2): 187–195. PDF.
- Rudman, W.B., 2006 (October18) Rostanga byga Er. Marcus, 1958. [In] Sea Slug Forum. Australian Museum, Sydney.
- Photographs of a specimen from Florida
- Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
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