Author: Undescribed

Order: Nudibranchia  Family: Discodorididae

Maximum Size: 20 mm

Sightings: Anilao, Phillipines

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Thordisa sp. 03 Undescribed

This may be a lighter colour form of Thordisa sp. 02.
This may be the Thordisa sp. 12 of NSSI, 2018.

Light brown in colour. The notum is completely covered in compound tubercles sited upon a raised stalk. From above the branches of the compound tubercles spread out in a stellate pattern. The rhinophores are black with white flecks on the edges of the lamellae. The apices are white. The anterior edge of the notum extends significantly forward of the rhinophores. The gill is light brown with white pigmentation.

Feeds on sponges.

David A. Mullins – January 2025

References:
– Chan, J. M. & Gosliner, T. M. (2007). Preliminary Phylogeny of Thordisa Nudibranchia: Discodorididae) with Descriptions of Five New Species. The Veliger, 48(4): 284–308.

– Gosliner, T. M., Valde ́s, A ́. & Behrens, D. W. (2018). Nudibranch & Sea Slug Identification – Indo-Pacific, 2nd Edition. New World Publications, Jacksonville, Florida, USA.

– Donohoo, S. A. & Gosliner, T. M. (2024). Variability in the white spot: a new genus and species of Discodorididae (Nudibranchia) from the central and western Pacific Ocean. Journal of Molluscan Studies 90: eyad027