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Hypselodoris bollandi is characterized by a white body with 4-7 dark blue patches on each side, and a diffuse purple median region. The mantle is covered with irregular small yellow/orange spots. The rhinophores are translucent reddish/orange, the gills are translucent white with red/orange edging. The gills form a simple circle.
This shot shows a juvenile specimen.
This species was posted on 19 June 2003 at these websites as Hypselodoris bollandi Gosliner & Johnson, 1999.
It is a convention in malacology to use the first initials of authors with the same family name to distinguish between them,
that is R.F. Johnson for Rebecca Fay Johnson and S. Johnson for Scott Johnson. I changed the authorship on 8 May 2016.
Rebecca Fay Johnson & Terrence M. Gosliner. 2012.
Traditional Taxonomic Groupings Mask Evolutionary History:
A Molecular Phylogeny and New Classification of the Chromodorid Nudibranchs. online at
More information on Hypselodoris bollandi are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2020), published 3 June 2020, Hypselodoris bollandi Gosliner & R.F. Johnson, 1999
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Hypselodoris_bollandi.htm