Alvania punctura
From Wikipedia, the free encyclopedia
| Alvania punctura | |
|---|---|
 | |
| Shell of Alvania punctura (specimen at the Natural History Museum, Rotterdam) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | A. punctura |
| Binomial name | |
| Alvania punctura | |
| Synonyms[2] | |
| |
Alvania punctura is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[2]
The length of the shell attains 3 mm.
(Original description) The very glossy shell has rounded whorls, rather taper in shape, and finely reticulated. The colour of the shell is transparent yellowish-white. The aperture is sub-orbicular and has a thin lip. The ridges on the body whorl do not extend over the outer lip. The shell has a small umbilical chink. The length of the shell is the tenth of an inch. Its breadth one third its length.[3]
