Tenellia sp. 11 (unknown)
February 18, 2017
Trinchesia cf foliata
February 18, 2017

Picture by Danny Van Belle – Seraya beach – Bali – Indonesia

Trinchesia yamasui

Order : NUDIBRANCHIA
Suborder : DEXIARCHIA
Infraorder : CLADOBRANCHIA
Parvorder : AEOLIDIDA
Superfamily : FIONOIDEA
Family : Trinchesiidae
Genus : Trinchesia
Species : Trinchesia yamasui

Picture by Danny Van Belle – Seraya beach – Bali – Indonesia

DISTRIBUTION
Tropical Indo-West Pacific.

This species seems to be quite variable in colour, in particular, the head, rhinophores and oral tentacles appear to range in colour from a translucent orange to a dark translucent blue-black. The second point of variation concerns the areas with opaque white pigementation. In some animals the translucent body wall has scattered patches of opaque white while in other specimens there is a solid colouring of white.

Picture by Danny Van Belle – Seraya beach – Bali – Indonesia