Vertigo parcedentata
Encyclopedia
Vertigo parcedentata is a species of small land snail
from the family Vertiginidae
.
Fossil distribution include also other parts of Europe from the Netherlands to Ukraine: Pleistocene and alluvium of the Rhine valley in Germany, Czech Republic, Slovakia, etc.
is forming half of the total length. First whorl is entirely smooth, the rest having rather oblique striae, of which there are several finer between two stronger striae.
The aperture
is semiovate, obliquely truncate above, with weakly reflected margins which are connected by a very thin callus. The right margin is weakly arched forward. It has usually one or two teeth or is wholly toothless, but it can have up to 4 teeth.
Dimensions of the shell are varry acoording to the authors:
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
from the family Vertiginidae
Vertiginidae
Vertiginidae is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the superfamily Pupilloidea.- Distribution :...
.
Distribution
Recent distribution include Norway.Fossil distribution include also other parts of Europe from the Netherlands to Ukraine: Pleistocene and alluvium of the Rhine valley in Germany, Czech Republic, Slovakia, etc.
Description
The shell is small, narrowly ovate. The shell has a narrow umbilical crevice and blunt summit. The shell has from 4½ to 5 convex whorls separated by a deeply impressed suture. The last whorlBody whorl
Body whorl is part of the morphology of a coiled gastropod mollusk.- In gastropods :In gastropods, the body whorl, or last whorl, is the most recently-formed and largest whorl of a spiral or helical shell, terminating in the aperture...
is forming half of the total length. First whorl is entirely smooth, the rest having rather oblique striae, of which there are several finer between two stronger striae.
The aperture
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where part of the body of the animal emerges for locomotion, feeding, etc....
is semiovate, obliquely truncate above, with weakly reflected margins which are connected by a very thin callus. The right margin is weakly arched forward. It has usually one or two teeth or is wholly toothless, but it can have up to 4 teeth.
Dimensions of the shell are varry acoording to the authors:
- The width of the adult shell is 1 mm, the height is 1.8-2.2 mm (Pilsbry 1918-1920).
- The width of the adult shell is 1.15-1.2 mm, the height is 2-2.2 mm (Ložek 1964).
- The width of the adult shell is 1.15-1.25 mm, the height is 1.7-2.3 mm (AnimalBase 2009).