Hypselodoris infucata

(Rüppell & Leuckart, 1830)

Hypselodoris infucata
Photographed by: Daniela Wolf

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

Comment from Richard Willan on photo #27944
A very small juvenile individual.

Comment from Richard Willan on photo #27792
A juvenile individual.

Comment from Richard Willan on photo #20274
A very small juvenile individual

Comment from Richard Willan on photo #13470
This is a typical Hypselodoris infucata

Comment from Richard Willan on photo #82
Clearly the presence of dark purple on the rhinophoral stalks isn’t a consistent character for only Hypselodoris kanga because some of these animals in this batch of Hypselodoris infucata have them too (photos #2380, #131, #1718, #0238). So the shape of the gills and spots on the gills are the best characters to tell them apart.

Comment from Richard Willan on photo #7100
The swelling on the right side below the mantle is the genital organs.

Comment from Richard Willan on photo #6998
A typical individual.

Comment from Richard Willan on photo #5611
The gills are out of focus, but I think they are diamond-shaped and not triangular in cross section.

Comment from Richard Willan on photo #4640
Though the gills are not in sharp focus, the 2nd, 3rd and 4th gills from the top are definitely diamond-shaped (that is, narrow at the front), which make it Hypselodoris infucata.

Comment from Richard Willan on photo #3881
Very small juvenile individual.

Comment from Richard Willan on photo #3851
A very small juvenile individual that is yet to acquire the completely red rhinophoral clubs of the adult of this species.

Comment from Richard Willan on photo #3845
Hypselodoris infucata a very small juvenile individual (foreground) and Mexichromis multituberculata (background). Both are probably eating the same sponge.

Comment from Richard Willan on photo #3052
A bit hard to see the gills are diamond-shaped section here, except for the hindmost gill – which is clearly acutely pointed anteriorly (in contrast to Hypselodoris kanga, in which each gill is triangular in cross section and so flattened anteriorly).

Comment from Richard Willan on photo #3004
This is an interesting photo that I am pretty sure the individual is Hypselodoris infucata based on mantle, rhinophoral, and gill coloration. The only inconsistency is the two front gills which seem to be triangular (normally all the gills in Hypselodoris infucata are diamond-shaped, in contrast to Hypselodoris kanga where all are triangular). However, this apparent triangular shape in just these two gills may be an artefact of the way these gills are positioned in the photo. It would be nice to see another photo of this individual from a different angle.

Having said that, I must add that Debelius & Kuiter have clearly got some identifications wrong for this species group in Nudibranchs of the World and all the species (Hypselodoris infucata, Hypselodoris obscura, Hypselodoris saintvincentius, Hypselodoris festiva, Hypselodoris kanga) are nowhere nearly as sharply delimited as they make out (in other words there is much greater intraspecific variation in colour pattern than this text would suggest), so it is not an infallible reference source. In particular, on page 127 the centre left photo shows an individual in the act of feeding from Bali that is Hypselodoris kanga and not Hypselodoris infucata.

Previous comment from Dr. Richard Willan: A juvenile individual.

Comment from Richard Willan on photo #2909
There is a longitudinal white mid-dorsal stripe and the gills are diamond-shaped (◊), so it is Hypselodoris infucata and not the similar-looking Hypselodoris kanga.

Comment from Richard Willan on photo #2491
Even though the gills are not in focus, the body coloration is that of typical Hypselodoris infucata.

Comment from Neville Coleman on photo #328
An extremely variable species it is distributed across the Indo – Pacific region, grows to 30 mm and feeds on sponges.

Locality:

 

Pictures of Hypselodoris infucata

Hypselodoris infucata from Brunei Darussalam
Posted 4 years ago
Viewed 778 times
 
 

Similar Species

Author: Erwin Kodiat

To distinguish between Hypselodoris kanga and similar looking Hypselodoris infucata is by looking at the gills. If they are triangular in cross section, and edged in red (blue in other parts of the world) and with a row of yellow spots up the broad outer face, then it is Hypselodoris kanga. Otherwise it is Hypselodoris infucata

Hypselodoris kanga from Bali, IndonesiaIdentification reviewed by Bill Rudman
(188 photos)
 
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