Cephalobrachia
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Cephalobrachia
The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods. They resemble angels, complete with flapping "wings", hence their common name. They are gelatinous, mostly transparent pteropods, and they only have shells in their embryonic stage. They are mostly very small, with the largest species (''Clione limacina'') reaching . External anatomy The Clionidae use winglike flaps for rhythmical locomotion, as if flying in the sea. These "wings" are attached to the anterior part of the body. The posterior part is gelatinous and mostly transparent. The orange visceral sac is confined to the anterior part. Life habits Mating is carried out ventrally for mutual fertilization. The following spring, this results in a free-floating, gelatinous egg mass. Taxonomy Clionidae d'Orbigny, 1851 is unfortunately also the name of a family of sponges in the order Hadromerida, class Demospongiae. Within the ICZN there has been a proposed emendation of spelling to Cli ...
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Thliptodon
The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods. They resemble angels, complete with flapping "wings", hence their common name. They are gelatinous, mostly transparent pteropods, and they only have shells in their embryonic stage. They are mostly very small, with the largest species (''Clione limacina'') reaching . External anatomy The Clionidae use winglike flaps for rhythmical locomotion, as if flying in the sea. These "wings" are attached to the anterior part of the body. The posterior part is gelatinous and mostly transparent. The orange visceral sac is confined to the anterior part. Life habits Mating is carried out ventrally for mutual fertilization. The following spring, this results in a free-floating, gelatinous egg mass. Taxonomy Clionidae d'Orbigny, 1851 is unfortunately also the name of a family of sponges in the order Hadromerida, class Demospongiae. Within the ICZN there has been a proposed emendation of spelling to Cli ...
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Clionidae
The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods. They resemble angels, complete with flapping "wings", hence their common name. They are gelatinous, mostly transparent pteropods, and they only have shells in their embryonic stage. They are mostly very small, with the largest species (''Clione limacina'') reaching . External anatomy The Clionidae use winglike flaps for rhythmical locomotion, as if flying in the sea. These "wings" are attached to the anterior part of the body. The posterior part is gelatinous and mostly transparent. The orange visceral sac is confined to the anterior part. Life habits Mating is carried out ventrally for mutual fertilization. The following spring, this results in a free-floating, gelatinous egg mass. Taxonomy Clionidae d'Orbigny, 1851 is unfortunately also the name of a family of sponges in the order Hadromerida, class Demospongiae. Within the ICZN there has been a proposed emendation of spelling to Cl ...
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Cephalobrachia
The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods. They resemble angels, complete with flapping "wings", hence their common name. They are gelatinous, mostly transparent pteropods, and they only have shells in their embryonic stage. They are mostly very small, with the largest species (''Clione limacina'') reaching . External anatomy The Clionidae use winglike flaps for rhythmical locomotion, as if flying in the sea. These "wings" are attached to the anterior part of the body. The posterior part is gelatinous and mostly transparent. The orange visceral sac is confined to the anterior part. Life habits Mating is carried out ventrally for mutual fertilization. The following spring, this results in a free-floating, gelatinous egg mass. Taxonomy Clionidae d'Orbigny, 1851 is unfortunately also the name of a family of sponges in the order Hadromerida, class Demospongiae. Within the ICZN there has been a proposed emendation of spelling to Cli ...
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Clionaidae
Clionaidae is a family of demosponges which are found worldwide. This family is known for parasitically boring holes in calcareous material such as mollusc shells and corals, using both chemical and mechanical processes.Brusca, R.C. & Brusca, G.J. 2002. ''Invertebrates Second Edition'' Sinauer Associates. Hooper J.N & van Soest R.W.M.(eds). 2002. ''Systema Porifera: A Guide to the Classification of Sponges'' Kluwer Academic/Plenum Publishers, New York Genera Genera within this family include: * '' Cervicornia'' Rützler & Hooper, 2000 * ''Cliona ''Cliona'' is a genus of demosponges in the family Clionaidae. It contains about eighty described species. Species Species in this genus include: * '' Cliona acephala'' Zea & López-Victoria, 2016 * '' Cliona adriatica'' Calcinai, Bavestrell ...'' Grant, 1826 * '' Clionaopsis'' Rützler, 2002 * '' Cliothosa'' Topsent, 1905 * '' Dotona'' Carter, 1880 * '' Pione'' Gray, 1867 * '' Scolopes'' Sollas, 1888 * '' Spheciospongia'' Marshal ...
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Thalassopterus Zancleus
''Thalassopterus zancleus'' is a species of swimming sea slug, a shell-less pelagic marine opisthobranch gastropod mollusk in the family Clionidae. ''Thalassopterus zancleus'' is the only species in the monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ... genus ''Thalassopterus''. It is known only from juveniles stages."''Thalassopterus zancleus''"
Marine Species Identification Portal, accessed 16 September 2010. Adults have not yet been found.


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Paraclione
''Paraclione'' is a genus of "sea angels", small floating sea slugs, pelagic marine opisthobranch gastropod mollusks. They are very small and gelatinous, mostly transparent, and they only have a shell during their embryonic stage. They can be found in the Atlantic Ocean. Species Species in the genus ''Paraclione'' include: *''Paraclione flavescens'' Gegenbaur, 1855 (synonyms : ''Clionina aurantiaca'' Franc, 1951 ; ''Clionina flavescens'' Franc, 1951 ) *''Paraclione longicaudata'' Souleyet, 1852 (synonyms : ''Clio longicaudata'' Souleyet, 1851 ; ''Clionina longicaudata'' Souleyet, 1851) See also *Sea angel Sea angels (clade Gymnosomata) are a large group of small free-swimming sea slugs, not to be confused with Cnidarians (Jellyfish and other similar creatures), classified into six different families. They are pelagic opisthobranchs in the clade G ... References *Souleyet. 1851. Ordre des Ptéropodes. Journal de Conchyliologie 2: 28-38 *Gofas, S.; Le Renard, J.; B ...
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Paedoclione Doliiformis
''Paedoclione doliiformis'' is a species of sea angel, a small floating sea slug, a pelagic marine gastropod mollusk in the family Clionidae. ''Paedoclione doliiformis'' is the only species in the genus ''Paedoclione''."Genus ''Paedoclione''"
Marine Species Identification Portal, accessed 4 February 2011.
The generic name is a reference to the habit of this genus, which retains many larval features throughout its life.Lalli C. M. & Conover R. J. (1973). "Reproduction and development of ''Paedoclione doliiformis'', and a comparison with ''Clione limacina'' (Opisthobranch ...
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Paedoclione
''Paedoclione doliiformis'' is a species of sea angel, a small floating sea slug, a pelagic marine gastropod mollusk in the family Clionidae. ''Paedoclione doliiformis'' is the only species in the genus ''Paedoclione''."Genus ''Paedoclione''"
Marine Species Identification Portal, accessed 4 February 2011.
The generic name is a reference to the habit of this genus, which retains many larval features throughout its life.Lalli C. M. & Conover R. J. (1973). "Reproduction and development of ''Paedoclione doliiformis'', and a comparison with ''Clione limacina'' (Opisthobranch ...
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Fowlerina
''Fowlerina'', one kind of "sea angel", is a genus of small sea slugs, marine opisthobranch gastropod mollusks in the family Clionidae. Sometimes called pteropods, these are floating pelagic creatures which swim by flapping two wing-like extensions of their body known as parapodia. Please also see: Sea angel and Clionidae The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods. They resemble angels, complete with flapping "wings", hence their common name. They are gelatinous, mostly transparent pteropods, and they only have sh .... Species Species in the genus ''Fowlerina'' include: * '' Fowlerina punctata'' Tesch, 1903 * '' Fowlerina zetesios'' Pelseneer, 1906 References Clionidae {{Clionidae-stub ...
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Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ...
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Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoological names with "-inae". See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoology) In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family, order, class, phylum, kingdom, domain. While ... Sources {{biology-stub ...
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