Jorunna cf. labialis (Eliot, 1908)

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This species has been observed on Reunion Island


Order : Nudibranchia
Suborder : Euctenidiacea
Superfamily : Doridoidea
Family : Discodorididae
Distribution : Suez and Suakin, Red Sea, Tanzania, Sudan, Madagascar and Reunion?
Maximal size : 20 mm
Abundance :

Species characteristics :

The colour of living specimens of J. labialis may vary from white to very dark dull grey with light brown spots.

Dorsum covered with caryophyllidia, about 190 µm in with long conical base, long spicules, short and rounded, ciliated tubercle. Spicules higher than tubercles.

Eleven bipinnate branchial leaves forming a circle. Lamellae arranged almost vertically, the same color as the mantle but tiped with opaque white

jorunna sp1
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Photo Christophe Cadet
Reunion, 12 February 2018

Remarks :

Identification as Jorunna sp by Hsini Lin
    This species looks like Jorunna labialis,
    Synonymous (according worms) :
          - Jorunna malcolmi, Ev. Marcus, 1976
          - Kentrodoris labialis , Eliot, 1908

Bibliographic data :

Rhinophoral and branchial sheaths low, regular
    Rhinophores wide, with eight to eleven lamellae, the same color as the mantle

References :

Publications :

Camacho-García Y.E. & Gosliner T.M. (2008). Systematic revision of Jorunna Bergh, 1876 (Nudibranchia: Discodorididae) with a morphological phylogenetic analysis. Journal of Molluscan Studies 74 :

Other photos of Jorunna cf. labialis :

Nathalie Rodrigues

Reunion, Terre Sainte lagoon, 15 February 2018

 

 

Nathalie Rodrigues

Reunion, 14 February 2016

 

 

Alexandre Laporte

Reunion,Etang sale on the rocky coast, less 1 m, 3 June 2015, size : 20 mm

Dorsum covered with caryophyllidia, about 190 µm in with long conical base, long spicules, short and rounded, ciliated tubercle. Spicules higher than tubercles.

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