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Euthyneura
Euthyneura is a taxonomic infraclass of snails and slugs, which includes species exclusively from marine, aquatic and terrestrial gastropod mollusks in the clade Heterobranchia. Euthyneura are characterised by several autapomorphies, but are named for euthyneury. They are considered to be the most successful and diverse group of Gastropoda. Within this taxon, the Gastropoda have reached their peak in species richness and ecological diversity. This obvious evolutionary success can probably be attributed to several factors. Marine Opisthobranchia, e.g., have evolved several clades specialised on less used food resources such as sponges or cnidarians. A key innovation in the evolution of Pulmonata was the colonization of freshwater and terrestrial habitats.Klussmann-Kolb A., Dinapoli A., Kuhn K., Streit B. & Albrecht C. (2008). "From sea to land and beyond – New insights into the evolution of euthyneuran Gastropoda (Mollusca)". ''BMC Evolutionary Biology'' 2008, 8: 57. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterobranchia
Heterobranchia, the heterobranchs (meaning "different gill"), is a taxonomic clade of snails and slugs, which includes marine, aquatic, and terrestrial gastropod molluscs. Heterobranchia is one of the main clades of gastropods. Currently Heterobranchia comprises two groups: the opisthobranchs, and the pulmonates. Diversity The two subdivisions of this large clade are quite diverse: * Opisthobranchia are virtually all marine species, some shelled and some not, and comprise about 25 families and 2000 species of the bubble shells, the seaslugs, as well as the sea hares. The internal organs of the opisthobranchs have undergone detorsion (unwinding of the viscera that were twisted during torsion). * The Pulmonata comprises about 20000 species, includes the majority of land snails and slugs, many freshwater snails, and a small number of marine species. The mantle cavity of the Pulmonata is modified into an air-breathing organ. They are also characterized by detorsion a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euopisthobranchia
Euopisthobranchia is a taxonomic clade of snails and slugs in the clade Heterobranchia within the clade Euthyneura. This clade was established as a new taxon by Jörger et al. in October 2010. Euopisthobranchia is a monophyletic portion of the Opisthobranchia as that taxon was traditionally defined but is not a replacement name for that group as several marine opisthobranch orders including Nudibranchia, Sacoglossa and Acochlidiacea are not included. Euopisthobranchia consist of the following taxa: * Umbraculoidea * Anaspidea * Runcinacea * Pteropoda * Cephalaspidea s.s. Gizzard Previous studies discussed the gizzard (i.e. a muscular oesophageal crop lined with cuticula) with gizzard plates as homologous apomorphic structures supporting a clade composed of Cephalaspidea s.s., Pteropoda and Anaspidea. A gizzard with gizzard plates probably originated in herbivorous taxa in which it worked like a grinding mill, thus might be secondarily reduced in carnivorous groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acteonoidea
Acteonoidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks. Taxonomy In the taxonomy of Bouchet & Rocroi (2005), the superfamily Acteonoidea has been included into the informal group "Lower Heterobranchia" (Heterostropha ''sensu'' Ponder & Warén, 1988), also known as the Allogastropoda. Only one of analyses by Jörger et al. (2010) indicates the Acteonoidea sister to Nudipleura. This clade that had resulted repeatedly in molecular studies with still limited "lower heterobranch" taxon sampling, either in a derived position or as a basal offshoot within Euthyneura. A recent molecular phylogeny on Acteonoidea suggest a common origin with lower heterobranch Rissoelloidea and a sister group relationship to Nudipleura.Gbbeler K. & Klussmann-Kolb A. (2010). "The phylogeny of the Acteonoidea (Gastropoda): molecular systematics and first detailed morphological study of '' Rictaxis punctocaelatus'' (Carpenter, 1864)". ''Journal of Molluscan Studies'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Heterobranchia
Lower Heterobranchia, also known as the Allogastropoda, is a group of rather specialized, highly evolved sea slugs and sea snails, marine (ocean), marine gastropod mollusc, mollusks within the Subclass (biology), subclass Heterobranchia.WoRMS (2020). "Lower Heterobranchia". Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1054700 on 2020-05-16 Although the great majority of Lower Heterobranchs are indeed marine, a few have succeeded in making the transition to freshwater. Description The Gastropod shell, shell shapes in this group are typically those that are seen in the sundial, pyramid, rissoella and orbitestellid families of snails. Taxonomy 2005 taxonomy In the Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, the Lower Heterobranchia is an Informal Group. Superfamilies within the Lower Heterobranchia include: *Unassigned to a superfamily (orbitestellid-shells) ** Family Cimidae ** † Family D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panpulmonata
Panpulmonata is a taxonomic clade of snails and slugs in the clade Heterobranchia within the clade Euthyneura. Panpulmonata was established as a new taxon by Jörger et al. in October 2010. The older name "Pulmonata" referred to a group of euthyneuran gastropods which were considered to be "air-breathers". In contrast, "Opisthobranchia, Opistobranchia" grouped various, mostly marine euthyneuran lineages, often with reduced shell. Phylogenetic analyses have shown that none of these two groups was monophyletic. The former "Pulmonata" should also include several groups that lack an air-filled lung (Acochlidiacea, Sacoglossa and Pyramidelloidea). The name "Pulmonata" also inaccurate when applied to some of the more traditional pulmonate taxa such as Siphonarioidea or Hygrophila (Gastropoda), Hygrophila, most members of which lack permanently air-filled lungs as well. To emphasize the complete change in taxonomic concepts following from the molecular phylogenetic analyses but keep som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudipleura
Nudipleura are a clade of sea snails and sea slugs, marine gastropod mollusks within the large clade Heterobranchia. Taxonomy 2005 taxonomy In the taxonomy of Bouchet & Rocroi (2005), the clade Nudipleura is arranged as follows: *Clade Nudipleura **Clade Pleurobranchomorpha **Clade Nudibranchia ***Family Bathydeviidae ***Clade Euctenidiacea ***Clade Dexiarchia ****Clade Pseudoeuctenidiacea ****Clade Cladobranchia *****Clade Euarminida *****Clade Dendronotida *****Clade Aeolidida The Aeolidida is a taxonomic clade of sea slugs, specifically aeolid nudibranchs, marine gastropod molluscs in the clade Cladobranchia. They are distinguished from other nudibranchs by their possession of cerata containing cnidosac A cnidosac ... 2010 taxonomy Jörger et al. (2010) have classified Nudipleura within Heterobranchia as a separate clade as follows: References External links Sea Slug Forum {{Taxonbar, from=Q4576637 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cepaea Nemoralis
The grove snail, brown-lipped snail or lemon snail (''Cepaea nemoralis'') is a species of air-breathing land snail, a terrestrial molluscs, terrestrial pulmonate gastropod mollusc. It is one of the most common large species of land snail in Europe, and has been introduced to North America. ;Subspecies: * ''Cepaea nemoralis etrusca'' (Rossmässler, 1835) * ''Cepaea nemoralis nemoralis'' (Linnaeus, 1758) ''Cepaea nemoralis'' is the type species of the genus ''Cepaea''. It is used as a model organism in ecological genetics, including in citizen science projects. Description ''Cepaea nemoralis'' is among the largest and, because of its bright colouration, one of the best-known snails in Western Europe. The colour of the gastropod shell, shell is highly variable; it ranges from brown, through pink, to yellow or even whitish, with or without one to five dark-brown bands. Names for many colour variants were coined in the nineteenth century but this system has been replaced by an inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics And Evolution
''Molecular Phylogenetics and Evolution'' is a peer-reviewed scientific journal of evolutionary biology and phylogenetics. The journal is edited by E.A. Zimmer. Indexing The journal is indexed in: * EMBiology *Journal Citation Reports *Scopus Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. The ensuing competition between the two databases has been characterized as "intense" and is c ... * Web of Science External links * Elsevier academic journals Evolutionary biology journals Phylogenetics Academic journals established in 1992 Monthly journals {{biology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rissoelloidea
Rissoellidae are a family of small sea snails, marine gastropod molluscs in the subclass Heterobranchia Heterobranchia, the heterobranchs (meaning "different gill"), is a taxonomic clade of snails and slugs, which includes marine, aquatic, and terrestrial gastropod molluscs. Heterobranchia is one of the main clades of gastropods. Currently Het .... Rissoellidae is the only family within the superfamily Rissoelloidea in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. Genera Genera within the family Rissoellidae include: * '' Cythnia'' Carpenter, 1864Bouchet, P. (2015). ''Cythnia'' Carpenter, 1864. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=565658 on 2017-05-24 * '' Rissoella'' Gray, 1847 - synonyms: '' Heterorissoa'' Iredale, 1912; '' Jeffreysia'' Alder n Forbes & Hanley 1850 References External links * Powell A. W. B., ''New Zealand Mollusca'', William Collins Publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organisms Diversity & Evolution
''Organisms Diversity & Evolution'' is a quarterly peer-reviewed scientific journal covering various aspects of biodiversity and evolution of organisms. It is published by Springer Science+Business Media on behalf of the Gesellschaft für Biologische Systematik and was established in 2001. The editor-in-chief is Andreas Wanninger (University of Vienna). The journal publishes research articles, reviews, and commentaries related to phylogenetics, taxonomy, comparative morphology, molecular evolution, biogeography, and conservation biology. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 2.663. References External links * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
