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Acavidae is a taxonomic
family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
of air-breathing land snails,
terrestrial Terrestrial refers to things related to land or the planet Earth. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to ...
pulmonate gastropod molluscs in the superfamily
Acavoidea The Acavoidea are a taxonomic superfamily of air-breathing land snails and slugs, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra. This taxonomy was based on the study by Nordsieck, published in 1986. Taxonomy Familie ...
(according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).


Anatomy

In this family, the number of haploid
chromosome A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins ar ...
s lies between 26 and 35 (according to the values in this table).Barker G. M.: Gastropods on Land: ''Phylogeny, Diversity and Adaptive Morphology''. in Barker G. M. (ed.):
The biology of terrestrial molluscs
'. CABI Publishing, Oxon, UK, 2001, . 1-146, cited pages: 139 and 142.


Genera

The family Acavidae has no subfamilies. Genera in the family Acavidae include:http://species.wikimedia.org/wiki/Acavidae cited 11 October 2008 * '' Acavus'' Montfort, 1810 * '' Ampelita'' Beck, 1837 * '' Embertoniphanta'' Groh & Poppe, 2002 * '' Eurystyla'' Ancey, 1887 * '' Helicophanta'' Férussac, 1821 * '' Leucotaenius'' Martens, 1860 * '' Oligospira'' Ancey, 1887 * † ''Pebasiconcha'' Wesselingh & Gittenberger, 1999 - with the only species † '' Pebasiconcha immanis'' Wesselingh & Gittenberger, 1999Wesselingh F. P. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". ''
Scripta Geologica ''Scripta Geologica'' is a peer-reviewed scientific journal that publishes on vertebrate and invertebrate palaeontology, palaeobotany/palynology, stratigraphy, petrology, and mineralogy, including gemmology with a focus on systematics. It is publi ...
'' 133: 19-290. Figure 274
abstractPDF
/ref> * '' Stylodonta'' De Cristofori & Jan, 1832 ;Genera brought into synonymy: * ''Acavella'' Jousseaume, 1894: synonym of '' Oligospira'' Ancey, 1887 * ''Columplica'' W. Hartmann, 1843: synonym of '' Stylodonta'' De Cristofori & Jan, 1832 * ''Poecilostylus'' Pilsbry, 1890: synonym of '' Eurystyla'' Ancey, 1887 * ''Stylodon'' H. Beck, 1837: synonym of '' Stylodonta'' De Cristofori & Jan, 1832


References


External links

* Gastropod families {{Acavidae-stub