Thorunna australis

(Risbec, 1928)

Thorunna australis
Photographed by: Ariel Lee

Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Subclass:Opisthobranchia
Order:Nudibranchia
Suborder:Doridina
Family:Chromodorididae
Species:Thorunna australis

Comment from Richard Willan on photo #14219
An atypical individual because the single red band on the rhinophores is exceptionally broad.

Comment from Richard Willan on photo #8931
A very small juvenile individual

Comment from Richard Willan on photo #8932
A very small juvenile individual.

Comment from Richard Willan on photo #8972
A very small juvenile individual.

Comment from Richard Willan on photo #7753
This species apparently shows very great intraspecific variation

Comment from Richard Willan on photo #4652
The colouration on the rhinophores (red with a white apex) distinguishes this species from Hypselodoris maculosa.

Comment from Richard Willan on photo #4618
In contrast, Hypselodoris maculosa would have two red rings around the rhinophores.

Comment from Richard Willan on photo #2494
See my comments about this species in the preceding set of photos today.

Comment from Richard Willan on photo #775
Not a typical individual (see explanation in the photo from Lembeh). This could well be an undescribed species.

Comment from Richard Willan on photo #583
A typical individual. See how different this individual is to the one from Ambon and this one from Bali, that’s why I suggested this is really a group of species not just one.

Comment from Richard Willan on photo #198
This may be a complex of several different species.

Locality:

 

Pictures of Thorunna australis

Thorunna australis from Jinshawan Beach Park, TaiwanIdentification reviewed by Richard Willan
Posted 9 years ago
Viewed 1468 times
 
 

Similar Species

Author: Erwin Kodiat

Hypselodoris maculosa has 2 orange rings on the rhinophores, white longitudinal lines, purple spots, and white speckles while Thorunna australis has ring of purple spots around the mantle margin.

 
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