Hypselodoris zephyra

Gosliner & Johnson, 1999

Hypselodoris zephyra
Photographed by: Marli Wakeling

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

Comment from Richard Willan on photo #32642
This excellent profile photo shows an individual with its buccal mass everted feeding on an encrusting sponge.

Comment from Richard Willan on photo #32639
This photo shows two individuals mating.

Comment from Scott Johnson on photo #15327
I agree this is Hypselodoris zephyra. It differs from the similar Hypselodoris nigrostriata by its mostly non-intersecting and roughly parallel dorsal dark lines.

Comment from Richard Willan on photo #12658
A very small juvenile individual.

Comment from Richard Willan on photo #10675
This is an important individual because it shows a mixture of characters of Hypselodoris zephyra (diagonal lines) and Hypselodoris nigrostriata (lines more or less parallel and lacking a distinct yellow margin), suggesting there is possibly only a single variable species.

Comment from Richard Willan on photo #8675
This is Hypselodoris zephyra if one defines that species as having essentially straight lines (as opposed to diagonal lines in Hypselodoris nigrostriata) and lacks a yellow marginal band (as opposed to possessing a band in Hypselodoris nigrostriata). But, as I have commented on previously, I think these characters intergrade and they are the same species.

Comment from Richard Willan on photo #8937
A very small juvenile individual.

Comment from Richard Willan on photo #8938
A very small juvenile individual

Comment from Richard Willan on photo #7841
A juvenile individual

Comment from Richard Willan on photo #1984
This species is very like Hypselodoris nigrostriata and I thought they were one and the same species ever since Hypselodoris zephyra was described. In the new book “Nudibranchs of the World” (pages 124 and 125) Rudie Kuiter has claimed both species are consistently different and both occur on Bali. This animal, however, which comes from Bali, has the diagonal stripes of Hypselodoris nigrostriata (a rather subjective character anyway) and it lacks a yellow marginal band which is characteristic of Hypselodoris zephyra. So I still think they are the same species.

Comment from Richard Willan on photo #1521
because of the parallel dark lines. Very similar to, and possibly the same as, Hypselodoris nigrostriata that supposedly only has oblique lines.

Comment from Dave Behrens on photo #299
This is juvenile form

Locality:

 

Pictures of Hypselodoris zephyra

Hypselodoris cf. zephyra from Unawatuna, Sri LankaIdentification reviewed by Richard Willan
Posted 7 years ago
Viewed 1311 times
 
 

Similar Species

Hypselodoris emmae: The body is a pale cream or yellow with a purple or bluish border to both the foot and the mantle. there are three purple longitudinal lines on the mantle and four brownish lines which vary in intensity in different individuals. The gills and rhinophores are a brilliant reddish orange and in Pacific specimens there is a white tip to the rhinophores.

Hypselodoris whitei has a whitish background color with a reddish purple submarginal line around the mantle edge and a series of five longitudinal lines covering the rest of the mantle. These lines are usually very crooked and joined by a series of lateral connections, breaking the mantle into rows of slightly raised whitish regions. The rhinophores are orange to orange-red with a distinctive white tip and the gills are similarly coloured with white on the inside and usually at the tip of each gill.

Hypselodoris maridadilus is yellow, with a purple border to the foot and the mantle, and a series of five longitudinal purple lines. the gills and rhinophores are bright orange-red.

The lines in Hypselodoris nigrostriata are more or less oblique. In the very similar species, Hypselodoris zephyra the lines are parallel.

Hypselodoris emma from Ambon, IndonesiaIdentification reviewed by Richard Willan
(111 photos)
Hypselodoris whitei from Lembeh, IndonesiaIdentification reviewed by Richard Willan
(189 photos)
 
« Hypselodoris zebrina | Other species from Unawatuna, Sri Lanka | Phyllidia ocellata »