Cerastidae

Cerastidae
	Drawing of apertural and abapertural view of the shell of Rhachistia rhodotaenia.
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia; clade Euthyneura; clade Panpulmonata; clade Eupulmonata; clade Stylommatophora; informal group Orthurethra
Superfamily:	Enoidea
Family:	Cerastidae; Wenz, 1923
Genera
	See text
Synonyms
	Pachnodidae Steenberg, 1925; Cerastuinae Wenz, 1930;

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

The family Cerastidae has no subfamilies.

Genera

Genera in the family Cerastidae include:

Cerastus Martens, 1860 - type genus of the family Cerastidae
Pachnodus Martens, 1860
Rhachistia Connolly, 1922
Rhachis Pfeiffer, 1856

Description

Anatomically speaking, there is no flagellum in the reproductive system of snails in the family Cerastidae, and this is what distinguishes this family from its sister group the family Enidae.^[2]

References

^ Wenz W. (2 August 1923) "Gastropoda extramarina tertiaria" Fossilium catalogus, I: Animalia. 3387 pp., published in parts: Part IV, Pars 21: 1069-1420. Cerastidae is on the page 1072.
^ Mordan P. B. (1992) "The morphology and phylogeny of the Cerastuinae (Pulmonata: Pupilloidea)". Bull. Br. Mus. (Nat. Hist.) 58, 1–20.

External links

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[1] Wenz W. (2 August 1923) "Gastropoda extramarina tertiaria" Fossilium catalogus, I: Animalia. 3387 pp., published in parts: Part IV, Pars 21: 1069-1420. Cerastidae is on the page 1072.

[2] Mordan P. B. (1992) "The morphology and phylogeny of the Cerastuinae (Pulmonata: Pupilloidea)". Bull. Br. Mus. (Nat. Hist.) 58, 1–20.

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