| 词条 | Doridacea |
| 释义 |
| fossil_range= | image = Cape dorid at False Bay dive site Moddergat P3110306.jpg | image_caption = Hypselodoris | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_familia = clade Heterobranchia clade Euthyneura clade Nudipleura clade Nudibranchia clade Euctenidiacea clade Doridacea | subdivision_ranks = Superfamilies | subdivision = See text. }} Doridacea is a taxonomic grouping of dorid nudibranchs, shell-less marine gastropod mollusks.[1] included in the clade Euctenidiacea of the clade Nudibranchia. Taxonomy
DescriptionNudibranchs in this grouping have a mantle which overlaps the sides of the foot, apart from the tail in some families. In the Superfamily Polyceroidea and the Family Goniodorididae this is often reduced to a ridge which may bear processes. There is usually a ring of external branched gills surrounding the anus towards the back of the body, but in some subgroups these gills can be located beneath the sides of the mantle (Family Phyllidiidae, Family Corambidae). Typically there are two rhinophores with lamellae which arise through the mantle towards the front of the animals. References1. ^Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. {{ISBN|3-925919-72-4}}. ISSN 0076-2997. 397 pp. {{Wikispecies}}{{Commons category}}{{Taxonbar|from=Q904075}} 1 : Nudipleura |
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