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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Tectipleura
Subcohors: Panpulmonata
Superordo: Eupulmonata
Ordo: Stylommatophora
Subordo: Helicina
Infraordo: Rhytidoidei
Superfamilia: Rhytidoidea

Familia: Acavidae
Genera (7 + 1†): AcavusAmpelitaEmbertoniphantaEurystylaHelicophantaOligospiraStylodonta – †Pebasiconcha

Acavidae Pilsbry, 1895
Primary references

Pilsbry, H.A. 1895. Guide to the study of Helices. Manual of Conchology, Second Series (Pulmonata), 9(33a): xxxii.


Groh & Poppe 2002: A conchological iconography. The family Acavidae: excluding genus Ampelita. ConchBooks, Hackenheim, 2002: 1–69. [not seen]


Acavidae in the World Register of Marine Species

Acavidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Acavoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).


In this family, the number of haploid chromosomes lies between 26 and 35 (according to the values in this table).[1]

The family Acavidae has no subfamilies.

Genera in the family Acavidae include:[2]

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, 1999[3]
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


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, ISBN 0-85199-318-4. 1-146, cited pages: 139 and 142. cited 11 October 2008
Wesselingh F. P. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". Scripta Geologica 133: 19-290. Figure 274. abstract, PDF

Mollusca Images

Biology Encyclopedia

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