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Description
Halgerda is an accepted genus of dorid nudibranchs in the family Discodorididae (formerly placed in its own family, Halgerdidae). Species are confined to the tropical Indo-West Pacific, apart from two species in warm temperate waters of South Africa and southern Australia. They are slow-moving slugs that live exposed on reef slopes and rubble and feed on sponges. Many species are probably still undescribed.
Identification
The body is firm and high-backed, usually white or cream and translucent enough to look glazed like porcelain. A network of raised ridges crosses the back, with conical tubercles where ridges meet, tipped in orange, yellow or red. Species are separated by the ridge pattern, the number of tubercles along a ridge, the spacing between ridges and whether the mantle margin is banded.
Species in this genus (2)
Sources (2)
Share link: https://seaslugs.org.il/genus/Halgerda/