Pyramidula umbilicata
| Pyramidula umbilicata | |
|---|---|
| |
| Six shells of Pyramidula umbilicata, scale bar in mm | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| (unranked): | clade Heterobranchia
clade Euthyneura |
| Superfamily: | |
| Family: | |
| Genus: | |
| Species: | P. umbilicata
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| Binomial name | |
| Pyramidula umbilicata | |
| Synonyms | |
|
Bulla umbilicata Montagu, 1803 | |
Pyramidula umbilicata is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusc in the family Pyramidulidae.
Shell description
The width of the shell is up to 2.9 mm, the height is up to 1.7 mm.[2] The shell is low conical (much broader than high) and tightly coiled and has very fine growth lines. The colour is red brown becoming more grey with age. The umbilicus is c. 1/3 of the shell diameter.
Distribution
This species has a Lusitanian-Atlantic distribution.[3]
References
- ^ Montagu G. (1803). Testacea Britannica, or natural history of British shells. pp. I-XXXVIII [= 1-38], 1-606, [1-4], pl. 1-16. London.
- ^ Gittenberger E. & Bank R. A. (1996). "A new start in Pyramidula (Gastropoda Pulmonata: Pyramidulidae)". Basteria 60: 71-78.
- ^ a b c d Alberto Martínez-Ortí, Benjamín J. Gómez-Moliner & Carlos E. Prieto. (2007). "El género Pyramidula Fitzinger 1833 (Gastropoda, Pulmonata) en la Península Ibérica. The genus Pyramidula Fitzinger 1833 (Gastropoda, Pulmonata) in the Iberian Peninsula". Iberus, Sociedad Española de Malacología, 25(1): 77-87.
- ^ a b Falkner G., Obrdlík P., Castella E. & Speight M. C. D. (2001). Shelled Gastropoda of Western Europe. München: Friedrich-Held-Gesellschaft, 267 pp.
External links
- Pyramidula umbilicata at Animalbase taxonomy,short description, distribution, biology,status (threats), images