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Gastropteron multo  Ong & Gosliner, 2017

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Gastropteron multo is characterized by its clear to to translucent white colour with orange and brownish patches.
let me quote Ong & Gosliner (2017): "External morphology: Living animals (Fig. 1C, D) 7-20 mm in length. Colour clear to translucent white with fine orange, brown and white dots speckling body or with series of brownish and orange patches. Opaque white digestive gland and ovotestis visible through visceral hump. Head shield, parapodia, flagella and foot translucent whitish. Small orange dots or brown patches covering body, concentrated on siphon and flagella. Dorsal flagellum centred on midline of visceral hump. Immediately ventral to this flagellum, second, slightly wider flagellar process, either longer or shorter than dorsal one (Fig. 5A). White spots outlining visceral hump and parapodia. Head shield shaped roughly like cauldron. Broadest anteriorly, narrowing and then broadening again posteriorly. Head shield terminating in tubular, simple siphon, lacking mid-dorsal ridge. Broad parapodia covering body when the animal is actively crawling. Foot elongate with long, acutely pointed posterior extension. Gill with nine primary folds."
Reference:
Ong E., Hallas J.M. & Gosliner T.M. (2017). Like a bat out of heaven: the phylogeny and diversity of the bat-winged slugs (Heterobranchia: Gastropteridae).
Zoological Journal of the Linnean Society. DOI: 10.1093/zoolinnean/zlw018., available online at https://doi.org/10.1093/zoolinnean/zlw018
How to cite:
Köhler, E. (2017), published 10 June 2017, Gastropteron multo  Ong & Gosliner, 2017
available from https://www.Philippine-Sea-Slugs.com/Cephalaspidea/Gastropteron_multo.htm