Order : NUDIBRANCHIA
Infra order : DORIDACEA
Superfamily : DORIDOIDEA
Family : Chromodorididae
From the western Indian Ocean to Hong Kong.
Hypselodoris kanga is one of a number of species with a bluish background colour, short dark blue lines and yellow or orange spots.
Some specimens are very similar in colour to Hypselodoris infucata.
One of the most distinctive external characters is the triangular gills, edged in blue with a series of yellow spots up the outer face.
In Hyspelodoris infucata the gills are what we call ‘simple’ because they are essentially a two dimensional leaf with a red line along the internal and external edge. If you look at the gills in the lower animal, they are triangular in cross-section which means there are three edges to each gill, one on the inside and two on the outside, each with a red line. Usually in H. kanga there are a series of white or yellow spots in the space between the outer red lines of each gill.
Other species with black lines include Hypselodoris nigrolineata, Hypselodoris maritima and Hypselodoris nigrostriata.