Home Acknowledgments Conventions Glossary Maps References Links Articles Thumbnails Species list Suborder Next family	Hexabranchidae The family Hexabranchidae includes flattened species with an inrolled mantle margin that can be "unfurled" for display and swimming. There are two flattened, lobate oral tentacles and the gills cannot be retracted into pockets (unlike in other cryptobranch families). Among the world's largest nudibranchs, they are nocturnal sponge feeders. Two probable species are known from Hawaii in one genus (Hexabranchus). Although this family has long been placed with the cryptobranch dorids, recent work (Valdez, 2002a) suggests that it should be placed with basal phanerobranchs, instead. Hexabranchus aureomarginatus Hexabranchus pulchellus
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