Achatinidae

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropodae
Subclassis: Orthogastropoda
Superordo: Heterobranchia
Ordo: Pulmonata
Subordo: Eupulmonata
Clade: Stylommatophora
Cladus: Orthurethra
Informal group: Sigmurethra
Superfamilia: Achatinoidea
Familia: Achatinidae
Subfamily: Achatininae

Achatinidae (New Latin, from Greek "agate") is a family of medium to large sized tropical land snails, terrestrial pulmonate gastropod mollusks from Africa. The family includes some 13 genera.

Well known species include Achatina achatina the Giant African Snail, and Achatina fulica the Giant East African Snail.

Distribution

Native distribution of Achatinidae include south of Sahara, Africa.[1]
Anatomy

In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).[2]
Taxonomy

The Achatinidae family is classified within the informal group Sigmurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata (according to taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

* Achatininae Swainson, 1840 - synonyms: Urceidae Chaper, 1884; Ampullidae Winckworth, 1945
* Callistoplepinae Mead, 1994
* Limicolariinae Chileyko, 1999

Genera

Genera in the family Achatinidae include:

* Genus Achatina Lamarck, 1799 - type genus
* Genus Archachatina
* Genus Bruggenina Mead, 2004[3] Type species by original designation Archachatina sandgroundi Bequaert, 1950
* Genus Burtoa
o Burtoa nilotica Pfeiffer, 1861 - Congo
* Genus Callistopepla
o Callistopepla graneri Thiele, 1811 - Congo
* Genus Cochlitoma
* Genus Columna
o Callistopepla columna Müller, 1774 - São Tomé and Principe
o Callistopepla leai Tryon, 1866 - São Tomé and Principe
* Genus Lignus
o Lignus alabaster Rang, 1831 - Guinea
o Lignus auripigmentum Reeve, 1848 - East Africa
o Lignus intertinctus Gould, 1843 - Liberia
o Lignus leai Pilsbry, 1933 - Liberia
o Lignus solimanus Morelet, 1848 - Cameroun
* Genus Limicolaria Schumacher, 1817
* Genus Lissachatina
* Genus Metachatina
o Metachatina kraussi Pfeiffer, 1846
* Genus Perideriopis
o Perideriopis fallsensis Dupuis & Putzeys, 1900 - Congo
+ Perideriopis fallsensis pronuba Pilsbry, 1919 - Congo
o Perideriopis umbilicata Putzeys, 1898 - Congo
* Genus Pseudachatina
o Perideriopis dennisoni Pfeiffer - Cameroun, Gabon
o Perideriopis downesii Sowerby, 1838 - Gabon
o Perideriopis wrighti Sowerby, 1853 - Guinea

References

1. ^ a b "Family summary for Achatinidae". AnimalBase]], last change 24-11-2007, accessed 3 August 2010
2. ^ 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.
3. ^ Mead A. R. (2004). "Comparative reproductive anatomy in the South African giant land snails (Gastropoda: Pulmonata: Achatinidae)". Zoologische Mededelingen Leiden 78: 417-449.

Biology Encyclopedia

Mollusca Images

Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License

Index

Scientific Library - Scientificlib.com