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Coryphella capensis
Species of gastropod From Wikipedia, the free encyclopedia
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The white-edged nudibranch, Coryphella capensis, previously known as Fjordia capensis, is a species of sea slug, specifically an aeolid nudibranch, a colourful sea slug. It is a marine gastropod mollusc in the family Coryphellidae.[3][4]
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Distribution
This species is endemic to the South African coast and is found only from the Atlantic coast of the Cape Peninsula to Port Elizabeth[5] in 10–30 m of water.[6]
Description
The white-edged nudibranch is a slender pale-bodied aeolid with numerous dark red cerata all edged with white. It is usually smaller than 40mm. It has rugose pale rhinophores. It has a pair of elongated oral tentacles having an opaque white stripe.[7]
Ecology
This aeolid feeds on hydroids of the genus Eudendrium.[5] In common with other aeolid nudibranchs, the cerata of white-edged nudibranch aid in respiration but also contain extensions of the digestive system. The white-edged nudibranch eats the hydroid and passes its nematocysts unharmed through its digestive system to the tips of its cerata. Here the nematocysts mature and are then used by the nudibranch for its own defence. It is probable that the bright colours of the white-edged nudibranch serve to advertise to predators that it is toxic.
The white-edged nudibranch is hermaphrodite. The egg mass is highly convoluted and creamy white.
References
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