Aldisa sanguinea, common name the blood-spot dorid, is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.MolluscaBase (2018). Aldisa sanguinea (J. G. Cooper, 1863). Accessed on 2018-12-03.
Distribution This species was described from California. It has subsequently been recorded on the western seaboard of North America from British Columbia south to Mexico. In the north of this range, in Oregon and British Columbia, specimens are found which lack the two characteristic round markings on the back resembling the inhalant pore sieves of Hymedesmiid sponges. It is possible that these belong to a separate species.Rudman, W.B., 2002 (February 18) Aldisa sanguinea (Cooper, 1863). [In] Sea Slug Forum. Australian Museum, Sydney.
Ecology This species feeds on a red Hymedesmia sponge.
References