{{Short description|Clade of gastropods}} {{Automatic taxobox | fossil_range = | image = Cape dorid at False Bay dive site Moddergat P3110306.jpg | image_caption = ''Hypselodoris'' | taxon = Doridoidei | subdivision_ranks = '''Superfamilies''' | subdivision = See text. }}
'''''Doridoidei''''' is an infraorder of dorid nudibranchs, shell-less marine gastropod mollusks.<ref name="WoRMS">MolluscaBase eds. (2026). MolluscaBase. [https://www.marinespecies.org/aphia.php?p=taxdetails&id=246038 Doridoidei.] ccessed through: World Register of Marine Species on 2026-04-22</ref> left|thumb|Chromodorididae
==Taxonomy== *Superfamily Chromodoridoidea **Family Actinocyclidae **Family Cadlinellidae **Family Cadlinidae **Family Chromodorididae **Family Hexabranchidae **Family Showajidaiidae left|thumb|Dorididae *Superfamily Doridoidea **Family Dorididae **Family Discodorididae left|thumb|Goniodorididae *Superfamily Onchidoridoidea **Family Acanthodorididae **Family Acanthomiridae **Family Aegiridae **Family Akiodorididae **Family Calycidorididae **Family Corambidae **Family Goniodorididae **Family Onchidorididae **Family Onchimiridae left|thumb|Phyllidiidae *Superfamily Phyllidioidea **Family Dendrodorididae **Family Forjacellidae **Family Mandeliidae **Family Phyllidiidae left|thumb|Polyceridae *Superfamily Polyceroidea **Family Polyceridae
==Description== Nudibranchs 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.
==References== {{Commons category}} {{Wikispecies}} {{Reflist}}
{{Taxonbar|from=Q904075}}
Category:Nudibranchs