Trapania sp1

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This species has been observed on Reunion Island

Order : Nudibranchia
Suborder : Euctenidiacea
Superfamily : Onchidoridoidea
Family : Goniodorididae
Distribution : Reunion and ...
Maximal size : 10 mm
Abundance : Seldom if ever on the reef flat zone and the rocky coast

Species characteristics :

The background is cream with irrregular connected patches of purple brown. These patches are lined with a black line

The gills and rhinophores are brown, speckle with small cream dots

The oral tentacles are cream in color

trapania sp1
Showing species characteristics...
Photo Christophe Cadet
Reunion, Etang salé on the rocky coast, less 1 m, 9 May 2010, size : 5 mm

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Terry Gosliner
    According Terry Gosliner : " I am quite certain that the Trapania is not T. euryeia as that species has small spots on the surface of the notum, not on the extrarhinophoral and extrabranchial processes.  I am pretty sure you animal represents and undescribed species. "
    This species looks like Trapania sp 16 of Rudman Seaslug forum, Trapania sp 5 from Gosliner Indo-Pacific field guide (2008) and some photo of Trapania sp from Nudipixel... but there are some consistent differences...

Bibliographic data :

This species looks like T. brunnea and T. euryeia, but in these two species the background is white to cream with dark brown patches sparsely scattered with irregular white or straw coloured small dots.

References :

Bill Rudman Seaslug site : Sea Slug Forum : Trapania sp 16 , Trapania euryeia and Trapania brunnea
   Nudipixel Trapania sp , Trapania euryeia and Trapania brunnea

Publications :

Gosliner, T.M. & Fahey, S.H. (2008)  Systematics of Trapania (Mollusca: Nudibranchia: Goniodorididae) with descriptions of 16 new species Systematics and Biodiversity , 6 (1): 53-98
    Rudman,W.B.(1987). The genus Trapania (Nudibranchia: Goniodorididae) in the Indo-West Pacific. Journal of Molluscan Studies, 53 : 189-212.

Other photos of Trapania sp1 :




Photo Christophe Cadet

Reunion, Etang salé lagoon, less 1 m, 26 May 2010, size : 10 mm



 More photos from Indian Ocean