Doris ananas Lima, Tibiriša & Simone, 2016

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This species has been observed on Mayotte, Madagascar and Seychelles Islands


Order : Nudibranchia
Suborder : Euctenidiacea
Superfamily : Doridoidea
Family : Dorididae
Distribution : South Africa, Madagascar, Mayotte, Mozambique, Tanzania, Indonesia, Queensland and Marchall Islands
Maximal size : 40 mm
Abundance :

Species characteristics :

The yellow mantle is covered by sparsely large black tubercles.

The lamellate rhinophores and important branched gills are grey.

The underside is yellow.

Doris  sp1
Showing species characteristics...

Photo Sully Bachel
Madagascar, Sainte Marie Island, 4 m, 20 October 2008, size : 40 mm.

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Nathalie Yonow
    This species looks like Doris sp 1 but there are some differences : Terry Gosliner in Indo-Pacific nudibranchs and seaslugs (2008) considered that they are two differents species as Nathalie Yonow.

 

Doris sp1

Doris ananas

Distribution

Reunion, Mauritius and Madagascar Islands

South Africa, Madagascar, Mayotte, Mozambique, Tanzania, Indonesia, Queensland and Marchall Islands

Dorsum

The yellow mantle is covered by sparsely large pale yellow tubercles and more densely little black tubercles.

The yellow mantle is covered by sparsely large black tubercles.


Synonymous : (according Worms)
          - No other name

Specimens description :

  The underside of the mantle and the foot are yellow with some little marginal black spots
    The rhinophores stalks are translucide pale yellow. The lamellate clubs are yellow with increased dark grey to black coloration on the upper half.
    The base on gill's axes are yellow like the mantle. The ramifications of the gills are dark grey on the axis and more pale grey on the edge.
    It's found on tropical shallow water reef, where it feeds on sponges

References :

Bill Rudman Seaslug site : Sea Slug Forum : Doris sp 1
   Nudipixel Doris sp

Publications :

Lima P.O.V., Tibiriša Y. & Simone L.R.L. (2016). A new large and common species of Doris (Gastropoda, Nudibran,chia) from the western Indian Ocean. Journal of Conchology. 42(4): 205-212.

Other photos of Doris ananas :


Sully Bachel        Rhinophore and gill details from the upper specimen.

The rhinophores stalks are translucide pale yellow (a). The lamellate clubs are yellow (b) with increased dark grey to black (c) coloration on the upper half.

 

 

 

 

 

The bases on gill's axes are yellow like the mantle. The ramifications of the gills are dark grey on the axis and more pale grey on the edge.


Olivier Police

Mayotte, "les piscines naturelles des Badamiers", less 1 m, 30 January 2010, size : 30 mm

The underside of the mantle and the foot are yellow with some little marginal black spots (a)


Christophe Mason-Parker

Seychelles, MahÚ, Baie Ternay, 2 m, 10 November 2012, size : 50 mm

A specimen with a few sparsely large black tubercles on the mantle.

The underside of the mantle and the foot are yellow with some little marginal black spots


 More photos from Indian Ocean

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