Ptychotrema
Encyclopedia
Ptychotrema is a genus
of air-breathing land snail
s, terrestrial pulmonate gastropod mollusks in the family Streptaxidae
.
Ptychotrema is the type genus
of the subfamily Ptychotrematinae.
? subgenus Ennea
subgenus Haplonepion Pilsbry, 1919
? subgenus Parennea
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of air-breathing land snail
Land snail
A land snail is any of the many species of snail that live on land, as opposed to those that live in salt water and fresh water. Land snails are terrestrial gastropod mollusks that have shells, It is not always an easy matter to say which species are terrestrial, because some are more or less...
s, terrestrial pulmonate gastropod mollusks in the family Streptaxidae
Streptaxidae
Streptaxidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in theStylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi....
.
Ptychotrema is the type genus
Type genus
In biological classification, a type genus is a representative genus, as with regard to a biological family. The term and concept is used much more often and much more formally in zoology than it is in botany, and the definition is dependent on the nomenclatural Code that applies:* In zoological...
of the subfamily Ptychotrematinae.
Distribution
Distribution of the genus is Afrotropical:- Uganda
- ...
Species
Species within the genus Ptychotrema include:- Ptychotrema mazumbiensisPtychotrema mazumbiensisPtychotrema mazumbiensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.It is endemic to Tanzania. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss....
Tattersfield, 1999 - Ptychotrema usambarensePtychotrema usambarensePtychotrema usambarense is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.It is endemic to Tanzania....
Verdcourt
? subgenus Ennea
Ennea
Ennea was the second album by jazz-rock fusion band Chase. It did not repeat the commercial success of their debut album, mostly due to the lack of a top 40 hit and the extended suite to Greek Mythology on side 2, which lacked the "commercial appeal" the first LP had...
- Ptychotrema (Ennea) bequaerti (Dautzenberg & Germain, 1914)
- Ptychotrema (Ennea) fraterculus Pilsbry, 1919
- Ptychotrema (Ennea) paradoxulum (Martens, 1895)
- Ptychotrema (Ennea) pollonerae Preston, 1913
- Ptychotrema (Ennea) silvaticum Pilsbry, 1919
subgenus Haplonepion Pilsbry, 1919
- Ptychotrema (Haplonepion) geminatum (Martens, 1895)
- Ptychotrema (Haplonepion) runsoranum (Martens, 1892)
? subgenus Parennea
Parennea
is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.-Species:Species within the genus include:*- Further reading :...
- Ptychotrema (Parennea) aequatoriale Pilsbry, 1919
- Ptychotrema (Parennea) cossyphae van Bruggen, 1989
- Ptychotrema (Parennea) goossensi (Adam & van Goethem, 1978)
- Ptychotrema (Parennea) kerereense (Adam & van Goethem, 1978)
- Ptychotrema (Parennea) kigeziense (Preston, 1913)
- Ptychotrema (Parennea) pelengeense (Adam & van Goethem, 1978)
Further reading
- Adam W. & van Goethem J. L. (1978). Revision du sous-genre Parennea Pilsbry du Genre Ptychotrema Morch (Mollusca-Pulmonata-Streptaxidae)". Études du Continent Africain, Bruxelles 5: 1-79.
- Oke O. C. & Odiete W.O. (1996). "New species of land molluscs from south western Nigeria I. A new species attributed to Ptychotrema (Mollusca, Gastropoda)". Journal of African Zoology 110: 99-104.
- Verdcourt B. (1985). "New taxa of GulellaGulellaGulella is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.Until recently, species which are now in the genus Costigulella were included here.- Distribution :...
L. Pfr. and Ptychotrema Mörch (Mollusca, Streptaxidae) from Eastern Africa". Journal of Conchology 32(1): 109-122. abstract.