Euctenidiacea
Encyclopedia
The Euctenidiacea are a taxonomic family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of sea snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

s or slug
Slug
Slug is a common name that is normally applied to any gastropod mollusc that lacks a shell, has a very reduced shell, or has a small internal shell...

s, marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod molluscs in the order
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...

 Notaspidea
Notaspidea
Notaspidea, also known as the sidegill slugs, was a suborder which included both sea slugs and sea snails or false limpets, marine opisthobranch gastropod molluscs in the subclass Orthogastropoda....

.

A phylogenetical study, published in 2000, by Wägele & Willan has shown that the subclade Gnathodoridacea (= Bathydoridoidea) and the subclade Doridacea (= Phanerobranchia + Cryptobranchia + Porostomata) each form a monophyletic group.

In a later study, published in 2002, A. Valdés concluded that the superfamilies Doridoidea and Phyllidioidea (called by him Cryptobranchia + Porostomata) formed a clade
Clade
A clade is a group consisting of a species and all its descendants. In the terms of biological systematics, a clade is a single "branch" on the "tree of life". The idea that such a "natural group" of organisms should be grouped together and given a taxonomic name is central to biological...

. He expanded the usage of Cryptobranchia to encompass the whole subclade Doridacea. This move was not followed in the taxonomy of Bouchet and Rocroi.

clade Doridacea

  • Superfamily Doridoidea
    Doridoidea
    Doridoidea, commonly known as dorid nudibranchs, are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nudibranchia....

    • Family Dorididae
    • Family Actinocyclidae
      Actinocyclidae
      Actinocyclidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. This family is within the clade Euctenidiacea.-Taxonomy :Genera within the family Actinocyclidae include:...

    • Family Chromodorididae
      Chromodorididae
      Chromodorididae are a taxonomic family of medium-sized to large, colorful, sea slugs; dorid nudibranchs in the superfamily Doridoidea. These are marine gastropod mollusks....

    • Family Discodorididae
      Discodorididae
      Discodorididae is a taxonomic family of sea slugs, specifically dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. Species in this family belong to the cryptobranch dorid nudibranchs, i.e. they are able to retract their gills into a gill pocket . Most are small and hard to...

  • Superfamily Phyllidioidea
    Phyllidioidea
    Phyllidioidea is a taxonomic superfamily of colorful sea slugs, dorid nudibranchs, marine gastropod mollusks.-Taxonomy:*Family Phyllidiidae Rafinesque, 1814*Family Dendrodorididae O'Donoghue, 1924*Family Mandeliidae Valdés & Gosliner, 1999...

    • Family Phyllidiidae
      Phyllidiidae
      Phyllidiidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Phyllidioidea.This family is within the clade Euctenidiacea .-Distribution:...

    • Family Dendrodorididae
      Dendrodorididae
      Dendrodorididae is a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod molluscs in the Superfamily Phyllidioidea.- Genera :...

    • Family Mandeliidae
      Mandeliidae
      Mandeliidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Phyllidioidea. This family is within the clade Euctenidiacea. The family is named for the former President of South Africa, Nelson Mandela-External links:...

  • Superfamily Onchidoridoidea
    Onchidoridoidea
    Onchidoridoidea is a taxonomic superfamily of colorful sea slugs, dorid nudibranchs, marine gastropod mollusks.-Families:Families within the superfamily Onchidoridoidea are based on the taxonomy by Bouchet & Rocroi as follows:...

     (= Phanerobranchiata Suctoria)
    • Family Onchidorididae
      Onchidorididae
      Onchidorididae are a taxonomic family of dorid nudibranchs or sea slugs, marine gastropod molluscs.-Genera:Genera in the family Onchodorididae include:* Acanthodoris Gray, 1850, see Orange-peel doris* Adalaria Bergh, 1879...

    • Family Corambidae
      Corambidae
      Corambidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Onchidoridoidea. This family is within the clade Euctenidiacea....

    • Family Goniodorididae
      Goniodorididae
      Goniodorididae are a taxonomic family of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the order Opisthobranchia.-Genera:Genera in the family Goniodorididae include:* Ancula Lovén, 1846* Goniodoris Forbes & Goodsir, 1939...

  • Superfamily Polyceroidea
    Polyceroidea
    Polyceroidea is a taxonomic superfamily of sea slugs, specifically dorid nudibranchs, marine gastropod mollusks in the clade Doridacea.-Families:Families within the superfamily Polyceroidea include:*Family Polyceridae...

     (= Phanerobranchiata Non Suctoria)
    • Family Polyceridae
      Polyceridae
      Polyceridae is a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod mollusks within the Superfamily Polyceroidea.- Taxonomy :...

    • Family Aegiridae - In Bouchet & Rocroi (2005) is incorrect subsequent spelling Aegiretidae.
    • Family Gymnodorididae
      Gymnodorididae
      Gymnodorididae is a taxonomic family of sea slugs, dorid nudibranchs, gastropod molluscs in the superfamily Polyceroidea.This family has no subfamilies.-Genera:Genera in the family Gymnodorididae include:...

    • Family Hexabranchidae
      Hexabranchidae
      Hexabranchidae is a taxonomic family of the colorful sea slugs which are known as nudibranchs. They are marine gastropod mollusks.This family is one of the many families of dorid nudibranchs in the suborder Doridina, named after Doris, who was a sea nymph in ancient Greek mythology.The family...

    • Family Okadaiidae
      Okadaiidae
      Okadaiidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Polyceroidea. This family is within the clade Euctenidiacea.This family has no subfamilies....


Further reading

  • Belick F. P. (1975) "Additional opisthobranch mollusks from Oregon". The Veliger 17(3): 276-277.
  • Goddard J. H. r. (1984) "The opisthobranchs of Cape Arago, Oregon, with notes on their biology and a summary of benthic opisthobranchs known from Oregon". The Veliger 27(2): 143-163.
  • Lance J. R. (1967) "The holotype of the abyssal dorid nudibranch Bathydoris aoica Marcus & Marcus, 1962". The Veliger 9(4): 410.
  • Marcus Ev. & Marcus Er. (1962) "A new species of the Gnathodoridacea". Anais da Academia Brasileira de Ciencias 34: 269-275.
  • Valdés Á. & Bertsch H. (2000) "Redescription and range extension of Bathydoris aioca Marcus & Marcus, 1962 (Nudibranchia: Gnathodoridoidea)". The Veliger 43(2): 172-178.
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