home
-
Cratena sp. 03  Genus: Bergh, 1864

Click the thumbnail photos to enhance!

     
Cratena sp. 03 is characterized by its translucent body with whitish dorsal region. The cerata are translucent orange, basally is a diffuse translucent band with purple spots, the apices are white.The rhinophores are basally translucent, diffusing into translucent orange, the apices are bright orange, subapical is one orange ring (annula). The oral tentacles are basally translucent with opaque white spots, followed by a broad translucent orange band, the outer half is opaque white, and the tips are translucent.
Cratena sp. 03 lacks the orange-red paches at the sides of the head which are in many species of Cratena.
Pretty similar are:
Cratena sp. 02 which differs
- by the backgound colour: translucent with opaque white spots and diffuse orange patches,
- by the cerata, which are mottled translucent whitish and irregularly inflated, and
- by the rhinophores, which are translucent with two annulae.
Phidiana anulifera which differs
- by the backgound colour: translucent with opaque white spots and diffuse orange patches,
- by the cerata, which are dark grey with tranlucent apices, and
- by the rhinophores, which are translucent with two whitish annulae near the apices.
Maybe Cratena sp. 03 is an extreme variant of Cratena sp. 5 in IPN at page 397:
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp.
The Sea-Slug Forum lists it as Cratena cf. affinis though it differs from Cratena affinis by the lack of orange-red paches at the sides of the head, and by the lack of opaque white lines at the cerata.
More informations on Cratena sp 02 as Cratena cf. affinis are at Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2016), published 13 August 2016, Cratena sp. 03  Genus: Bergh, 1864
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Cratena_sp_03.htm