Hexabranchus aneiteumensis Abraham, 1877

Tibiriçá, Yara, Pola, Marta, Pittman, Cory, Gosliner, Terrence M., Malaquias, Manuel A. & Cervera, Juan Lucas, 2023, A Spanish dancer? No! A troupe of dancers: a review of the family Hexabranchidae Bergh, 1891 (Gastropoda, Heterobranchia, Nudibranchia), Organisms Diversity & Evolution (New York, N. Y.) 23 (4), pp. 697-742 : 732

Hexabranchus aneiteumensis Abraham, 1877

Description notes Brief description of the external morphology of a preserved specimen; no illustration provided: body oval, depressed; mantle expansion wider on sides and posteriorly, smooth with a fimbriate edge; seven gill tufts arranged around the anus in different cavities; oral tentacles fleshy, multi-lobed; color in spirits mottled red and white on notum, reticulated and spotted with red on underside; foot sole red.

Own conclusion/opinion on its taxonomic status The species was described from a preserved specimen and the color description is lacking in detail. In general, the mottled coloration and Western Pacific location would suggest that this species is a possible junior synonym of H. lacer . The depressed body and red foot sole allow us to discard H. giganteus sp. nov.; however, it does not allow us to fully discard H. sanguineus . Therefore, we consider H. aneiteumensis as nomen dubium.