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Baeolidia ransoni (Pruvot-Fol, 1956) [Aeolidiopsis]

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Baeolidia ransoni was described by Alice Pruvot-Fol as Aeolidiopsis ransoni within the new genus Aeolidiopsis  Pruvot-Fol, 1956. According to Bill Rudman's Sea Slug Forum has Baeolidia ransoni two distinct colour forms without any intermediate forms, which suggests that it is species complex. Both colour forms feed on colonial zoantharians of the genus Palythoa. The rinophores are smooth, the flattened cerata are leaf-like arranged along the entire lenth of the body.
In form one, the animal is translucent with small white dots all over. This form is burrowing into the Palythoa colony, The form two is brown-speckled and has also small white dots all over, and so resembles the external colour of the brown Palythoa that it is almost invisible. The brown colouration is from clusters of zooxanthellae in small branches of the digestive gland ramifying to all parts of the body.
Both forms are what Bill Rudman calls "Solar-powered Sea Slugs".
Carmona et al. (2013) synonymized Aeolidiopsis  Pruvot-Fol, 1956 with Baeolidia Bergh, 1888.
References:
Pruvot-Fol A. (1956). Un aeolidien nouveau des mers tropicales: Aeolidiopsis ransoni n.g., n.sp.
Bulletin du Muséum National d'Histoire Naturelle. ser. 2, 28: 228-231.,
available online at https://www.biodiversitylibrary.org/page/54828766
Carmona L., Pola M., Gosliner T.M. & Cervera J.L. 2013. A tale that morphology fails to tell: A molecular phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda).
PLoS ONE 8(5): e63000. doi:10.1371/journal.pone.0063000,
available online at: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0063000
More information on Baeolidia ransoni as Aeolidiopsis ransoni are at Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2020), published 6 April 2020, Baeolidia ransoni (Pruvot-Fol, 1956)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Cladobranchia/Baeolidia_ransoni.htm

 
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