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Marioniopsis sp. 03  Genus: Odhner, 1934

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Marioniopsis sp. 03 is an unidentified or undescribed species of the genus Marioniopsis, or possibly of the genus Marionia. I label it Marioniopsis sp. 03, to distinguish it from other species of Marioniopsis.
Marioniopsis sp. 03 is characterized by a mottled brownish-tan-pinkish background colour, by very faint dark blue lines forming polygons, and by bright blue spots. I has translucent tan rhinophores and gills.
Pretty similar are:
Marioniopsis sp. 01 which differs by the pinkish background colour, by the pinkish rhinophores with turquoise apices, by the translucent turquoise gills, and by conspicuous dark blue lines forming polygons
Marioniopsis sp. 02 which differs by conspicuous dark blue lines forming polygons, by the reddish background colour, by the translucent rhinophores with white tips, by the translucent gills with minute dark spots, and by the diffuse white longitudinal median band,
Marioniopsis sp. 04 which differs by the pinkish-red background colour, by the series of median tan patches, by tan rhinophores, by translucent tan gills, and by conspicuous dark blue lines forming polygons,
Marioniopsis sp. 05 which differs by the reddish background colour, by the series of median dark grey patches, by tan rhinophores, by translucent tan gills, and by conspicuous dark blue lines forming polygons
There are many tritoniids with a similar colour pattern, even the bright blue spots and the dark blue lines forming polygons are not distinctive - or there is one species with many colour variants.
this species was posted on 9 June 2005 at these websites as Marioniopsis sp. C  Genus: Odhner, 1934, and on 15 October 2011 changed into
Marioniopsis sp. 03  Genus: Odhner, 1934.
For some genera, such as Trinchesia was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I had chosen 2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.
How to cite:
Köhler, E. (2016), published 6 December 2016, Marioniopsis sp. 03  Genus: Odhner, 1934
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Marioniopsis_sp_03.htm