Nudi Pixel: Nudibranchs and Sea Slugs Identification with Photographs

Phyllodesmium horridum

Also known as: Phyllodesmium horridus

Photographed by: Guido Zsilavecz

Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Opisthobranchia
Order:	Nudibranchia
Suborder:	Aeolidina
Family:	Facelinidae
Species:	Phyllodesmium horridum

This aeolid nudibranch appears to be endemic to South Africa. Its cerata are long and rather numerous for the genus, and each has an opaque bluish white line along its anterior face. This longitudinal band plus the red pigment on the posterior face completely hide the internal digestive diverticulum. In contrast, the similar-looking Phyllodesmium serratum has transparent cerata through which the diverticulum can be seen easily and a much paler longitudinal stripe down the back, or it is sometimes absent altogether.

Locality:

• South Africa
  • Cape Town (5) Jan

 

Pictures of Phyllodesmium horridum

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