Gloomy Nudibranch

Tambja morosa

''Tambja morosa'', also known as ''Tambja kushimotoensis'' or ''Gloomy Nudibranch'', is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the subfamily Nembrothinae within the family Polyceridae.

This species is instead sometimes placed in the family Gymnodorididae.
Tambja morosa - Gloomy Nudibranch Bianca, Lembeh. Geotagged,Gloomy Nudibranch,Indonesia,Spring,Tambja morosa

Appearance

This large species of ''Tambja'' grows to approximately 70–75 mm in length. This species is normally black with blue markings, although dark green specimens are found in the cooler waters of New South Wales and northern New Zealand. The skin of this slug is wrinkled, and it appears nearly black underwater. It has approximately five round, blue spots on its back, a blue band around its head, and a bright blue margin.
Tambja morosa Pulau Abadi, Lembeh. Geotagged,Gloomy Nudibranch,Indonesia,Spring,Tambja morosa

Distribution

The distribution of this species is primarily Indo-Pacific. It is found in the Philippines, Indonesia, Thailand, Myanmar, Malaysia, New Zealand, Solomon Islands, Taiwan, Australia, French Polynesia, Fiji and Hawaii.
Tambja morosa Pulau Abadi, Lembeh. Geotagged,Gloomy Nudibranch,Indonesia,Spring,Tambja morosa

Food

''Tambja morosa'' feeds on arborescent bryozoan colonies.

References:

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Taxonomy
KingdomAnimalia
DivisionMollusca
ClassGastropoda
OrderNudibranchia
FamilyPolyceridae
GenusTambja
SpeciesT. morosa