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Helicina (suborder)
After excluding groups not related, the informal group Sigmurethra has become the suborder Helicina, with the following infraorders and a collection of families with no superfamily:MolluscaBase eds. (2020). MolluscaBase. Helicina. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=994701 on 2020-08-25 *Suborder Helicina ("Non-Achatinoid Clade") **Infraorder Arionoidei **Infraorder Clausilioidei **Infraorder Helicoidei: formed from Helicoidea and Sagdoidea **Infraorder Limacoidei: formed from original ''#limacoid clade, limacoid clade'' **Infraorder Oleacinoidei ***Oleacinoidea: formed from original Testacelloidea but with the family Testacellidae excluded; ***Haplotrematoidea: formed from original Rhytidoidea and Haplotrematidae **Infraorder Orthalicoidei **Infraorder Pupilloidei (Orthurethra) **Infraorder Rhytidoidei: formed by Rhytidoidea merging with contents from Acavoidea. **Infraorder Succineoidei (Elasmognatha) ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigmurethra
Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs. The two strong synapomorphies of Sigmurethra are a long pedal gland placed beneath a membrane and retractile tentacles. Several families in this group contain species of snails and slugs that create love darts. Sigmurethra are known from the Cretaceous to the Recent periods. Taxonomy 2005 Taxonomy In the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, Sigmurethra is an "Informal Group", a subsection of the Stylommatophora.Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 It consists of the following families: *Superfamily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |