Fried egg sea slug (Diaphorodoris luteocincta)
|Researched by||Sonia Rowley||Refereed by||Admin|
|Authority||(M. Sars, 1870)|
|Other common names||Fried egg nudibranch||Synonyms||Onchidoris luteocincta (M. Sars, 1870)|
Diaphorodoris luteocincta is an oval sea slug up to 1.1 cm in length. It is conspicuous compared to other onchidorids due to its colour; being white and having a bright to dark red blotching on its tuberculate, upper mantle and a yellow submarginal band around the mantle edge. The mantle tubercules (papilla) are white and sharply conical. The rear most part of foot (metapodium) of this species is crenulated, extends beyond the mantle and has a distinct keel. The tip of the metapodium may often be yellow in colour. The mantle bears a pair of lamellate rhinophores, and at the posterior edge; a rosette of up to seven branched gills encircling the anal papilla.
Recorded distribution in Britain and IrelandThis species is probably under recorded. However, records extend throughout the British Isles but less so from the east and south-east of England and Scotland.
HabitatA common sublittoral species, found at up to 50 m depth on silty rocks and wreckage, feeding on particular species of bryozoans (see additional information).
- Oval sea slug, up to 1.1 cm in length.
- White in colour with a conspicous red blotch on the mantle.
- White, conical tubercules on the mantle.
- Sub marginal yellow band around the mantle edge.
- Pair of lamellate rhinophores.
- Up to seven, branched gills.
Diaphorodoris luteocincta feeds on heavily calcified bryzoans, primarily: Smittoidea reticulata; Cellepora pumicosa, and Crisia spp. It lays its eggs in a flattened, coiled white mass. The eggs later hatch into planktonic larvae.
A distinct variety of this species, Diaphorodoris luteocincta var. alba, lacks the red pigmentation on its upper mantle and occurs from the Mediterranean, north to the south coast of Britain. Thompson & Brown (1976) noted that the characteristic red pigmentation of Diaphorodoris luteocincta was very superficial and tended to rub off.
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Last Updated: 17/04/2008