Berthelinia schlumbergeri Dautzenberg, 1895
or limax (Kawaguti & Baba, 1959)

Version française...

This species has been observed on Reunion Island


Order : Sacoglossa
Super-family : Oxynooidea
Family : Juliidae
Distribution : Indo West Pacific
Maximal size : 10 mm
Abundance :

Species characteristics :

Body green, shell green with a series of opaque white bands radiating along the margin

Associated with Caulerpa racemosa  

 

lonbiger souverbii viridis
Showing species characteristics...

Photo Christophe Cadet
Reunion, Etang salé on the rocky coast, less 1 m, December 2010, size : 5 mm

See more about : Sightening and mating periods

Remarks :

There are two very similar species that have shell green with a series of opaque white bands radiating along the margin Berthelinia schlumbergeri and B. limax. These two species have a Indo Pacific distribution... So very difficult to conclude...
    Synonymous : (according Worms)
        For Berthelinia schlumbergeri :
            - No other name
        For Berthelinia limax :
            - Tamanovalva limax Kawaguti & Baba, 1959

Bibliographic data :

These little sacoglossan opisthobranchs were originally described as bivalves (pelecypods), based on fossil solitary shells, but in the late 1950's Kawaguti & Baba (1959) described the living animals. Some workers have divided the group into multiple genera, but many of the species apparently differ in only minor variations of shell morphology. Gosliner (1987) considers South African specimens of Berthelinia to be B. schlumbergeri

References :

Bill Rudman Seaslug site : Sea Slug Forum : Tamanovalva limax
   Okinawa Slug Site Berthelinia schlumbergeri
   Med Slug Berthelinia limax
   Nature publication Berthelinia limax

Publications :

Baba, K (1961) On the identification and the affinity of Tamanovalva limax , a bivalved sacoglossan mollusc in Japan. Publications of the Seto Marine Biological Laboratory, 9 : 37-62, Pls 1-4.
    Gosliner, T. 1987. Nudibranchs of Southern Africa. A Guide to Opisthobranch Molluscs of Southern Africa. Sea Challengers, Monterey, California
    Jensen, K.R. (2007). Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). Bonner Zoologische Beiträge. 55: 255281.
    Kawaguti, S. & Baba, K. (1959) A preliminary note on a two-valved sacoglossan gastropod, Tamanovalva limax , n. gen., n. sp., from Tamano, Japan. Biol. J. Okayama Univ. 5(3-4) : 177-184.
    Prabhakara K Record of the Bivalve Gastropod Berthelinia limax (Kawaguti and Baba 1959) from the Indian Ocean Nature 208, 404 - 405 (23 October 1965)

Other photos of Berthelinia schlumbergeri or limax :


 

 

Christophe Cadet

Reunion, Etang salé on the rocky coast, less 1 m, 21 December 2010, size : 5 mm

 


 

 

Christophe Cadet

Reunion, Sainte Rose on the rocky coast, less 1 m, 17 November 2016, size : 2-3 mm

 

With a baby (a)


 More photos from Indian Ocean

If you have taken a photo of this species in South West Indian Ocean, please Contact us...