Semilimax pyrenaicus
From Wikipedia, the free encyclopedia
| Semilimax pyrenaicus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Vitrinidae |
| Genus: | Semilimax |
| Species: | S. pyrenaicus |
| Binomial name | |
| Semilimax pyrenaicus (A. Férussac, 1821) | |
| Synonyms | |
|
Vitrina hibernica J. Taylor 1908 | |
Semilimax pyrenaicus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vitrinidae. It is a large greyish-brown snail that cannot fully retract into its shell.
For terms see gastropod shell and Reproductive system of gastropods
The body of this semi-slug is too large to be contained in the very flat and depressed ear-shaped shell. The shell body whorl is ¾ of the total breadth viewed from above. It is very thin, fragile and transparent. Shell colour is greenish or yellowish. The shell aperture has a mouth membrane which runs from the umbilicus along the inside of the outer lip. The animal is pale to dark grey or black, paler forms have large dark grey areas. The mantle lobe is very large. The genitalia are diagnostic. The penis appendix joins the vagina below the insertion of the spermatheca duct.[1]
