Acicula parcelineata
| Acicula parcelineata | ||||||||||||
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Acicula parcelineata |
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| Scientific name | ||||||||||||
| Acicula parcelineata | ||||||||||||
| ( Clessin , 1911) |
Acicula Parcelineata is a living on the land snail species from the family of aciculidae (Aciculidae) in order architaenioglossa .
features
The slim, spindle-shaped, right-hand wound 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 increase rapidly, but the lower turns hardly any. A total of 5¼ to 5¾ moderately to slightly arched turns are formed. The apex is blunt and flatly rounded. The Protokonch is smooth, then a grooved stripe begins; the grooves become increasingly stronger, and the distance becomes a little wider. 14 to 23 grooves can appear on the penultimate deal. No edge or suture thread is indicated under the very flat seam, e.g. B. in the dashed sludge needle ( Acicula lineolata ). The mouth rises very slightly from the penultimate passage. In the frontal view, the mouth is rounded-trapezoidal to crooked pear-shaped. In the side view, the edge of the mouth is only slightly bulged, but not thickened on the inside. It is only slightly turned over in the navel area and somewhat expanded at the base. The envelope in the umbilical area closes the umbilicus as a narrow callus. The parietal callus is poorly developed and sharply delimited on the outside. Neck bulge and angularis are absent.
The housing shell is thin and transparent. The surface is very shiny, the color ranges from very pale reddish yellow to almost colorless.
Similar species
A. parcelineata is very similar to Acicula isselii . The latter is more conical, has on average a somewhat denser stripe of grooves and has a slight edge or a suture thread under the seam. Acicula fusca is somewhat more compact, i.e. wider than A. parcelineata . Acicula palaestinensis is significantly larger, while Acicula schlickumi is, in turn, significantly smaller.
Geographical distribution and habitat
Acicula parcelineata occurs very scattered in the Carpathian Mountains : the Czech Republic, Slovakia, Poland, Romania and the Ukraine as well as in the western Caucasus region. Boeters et al. (1989) see the fossil taxon A. bakanense as a likely synonym. If so, A. parcelineata would already be found 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 sludge of forest floors, under the leaf litter and under stones.
Taxonomy
The taxon was first described in 1911 by Stephan Clessin as Acme parcelineata . The holotype came from "Dzingelau, Oestr. Silesia", today Dziegielów near Cieszyn (Poland). According to Boeters et al. (1989) there are several synonyms: Acme carpatica Wagner, 1912, Pupula wagneri Hesse, 1920 (nomen nudum) and Acme parcelineata var. Cylindracea Sitsch, 1925 and - probably - Acicula bakanense Steklov, 1966.
supporting documents
literature
- Michael P. Kerney, RAD Cameron, Jürgen H. Jungbluth: The land snails of Northern and Central Europe. Paul Parey, Hamburg / Berlin 1983, ISBN 3-490-17918-8 , pp. 84/85.
- Hans D. Boeters, Edmund Gittenberger, Péter Subai: The Aciculidae (Mollusca, Gastropoda, Prosobranchia). In: Zoologische Verhandelingen. Volume 252, Leiden 1989, pp. 1-234. (PDF)
Individual evidence
- ↑ MP Kerney among other things: The land snails of Northern and Central Europe. 1983, p. 71.
- ↑ HD Boeters et al.: The Aciculidae (Mollusca, Gastropoda, Prosobranchia). 1989, pp. 78-81.
- ^ S. Clessin: New Acme species. In: Newsletter of the German Malacoological Society. Volume 43, No. 4, Frankfurt am Main 1911, pp. 165-167.
