Acicula parcelineata
Acicula parcelineata
Acicula parcelineata is a living on the land snail from the family of Mulmnadeln ( Aciculidae ) in order Architaenioglossa.
- 4.1 Literature
- 4.2 Notes and references
- 4.3 online
Features
The sleek, fusiform and right-handed case is 2.0 to 2.3 mm high and 0.7 to 0.8 mm ( 0.75 to 0.85 mm) wide. The first turns are growing rapidly, the lower turns, however, hardly. Total 5 ¼ to 5 ¾ be moderately formed to slightly curved turns. The apex is bluntly rounded and flat. The Protokonch is smooth, then uses a Rillenstreifung; the grooves are increasingly strong, the distance is a little further. On the penultimate handling can occur 14 to 23 grooves. Under very flat seam edge and no no suture is indicated, such as at the Dotted Mulmnadel ( acicula lineolata ). The mouth increases very slightly from the penultimate handling. In the frontal view of the muzzle is rounded - trapezoidal wrong to pear-shaped. In the side view of the aperture rim is only slightly bulged, the inside is not thickened. He is slightly turned up only in the navel area and at the base slightly expanded. The envelope in the navel area closes almost as narrow callus the navel. The Parietalkallus is poorly developed and sharply defined outward. Neck ridge and angularis missing.
The housing shell is thin and transparent. The surface is very shiny, ranges in color from very pale reddish- yellow to almost colorless.
Similar Species
A. parcelineata acicula similar isselii strong. The latter is more cone-shaped, has an average of a little denser Rillenstreifung and has a slight edge at the seam or suture. Acicula fusca is a bit stockier, so wider than A. parcelineata. Acicula palaestinensis is clearly bigger while acicula schlickumi in turn is much smaller.
Geographical distribution and habitat
Acicula parcelineata is very scattered in the Carpathians before: Czech Republic, Slovakia, Poland, Romania and Ukraine, and in the western Caucasus region. Boeters, et al. (1989 ) see the fossil taxon A. bakanense as a probable synonym. If that were the case, A. parcelineata came before already in the upper Miocene of the western Caucasus region. The species is also known from the Holocene of Poland and the Czech Republic.
Acicula parcelineata lives in the muck of forest soils, under the leaf litter and under stones.
Taxonomy
The taxon was described in 1911 by Stephan Clessin as Acme parcelineata first time. The holotype came from " Dzingelau, estr. Silesia ", today Dzięgielów in Cieszyn (Poland). After Boeters et al. (1989 ) there are several synonyms: Acme carpatica Wagner, 1912, Pupula wagneri Hesse, 1920 ( nomen nudum ) and Acme parcelineata var cylindracea Sich in 1925, and - probably - acicula bakanense Steklov, 1966.