Ribbed sludge needle

Ribbed sludge needle
	Ribbed sludge needle ( Renea veneta )
Systematics
Superordinate :	Caenogastropoda
Order :	Architaenioglossa
Superfamily :	Cyclophoroidea
Family :	Mulm needles (Aciculidae)
Genre :	Renea
Type :	Ribbed sludge needle
Scientific name
	Renea veneta
	( Pirona , 1865)

The ribbed sludge needle ( Renea veneta ), also known as ribbed needle snail, is a land-living snail from the family of sludge needles (Aciculidae) in the order Architaenioglossa ("old bandworm").

features

The (adult) case is 3.7 to 4.5 mm high and 1.3 to 1.5 mm wide. It is very slender, tower-shaped to slightly spindle-shaped with an almost straight side line. 6½ to 7¼ moderately to strongly curved turns are formed. The last turn is a little flattened. The protoconch and the first 1¾ to 2 turns are smooth, then fine, regular ribs set in; 48 to 60 ribs on the penultimate turn, 48 to 66 ribs on the last turn. Between the ribs there are very fine but clear strips of growth. In the frontal view, the mouth resembles a distorted U with a flattened lower edge. The widened mouth rim is thickened with lips on the inside and slightly curved outwards. In the side view, the palatal edge of the mouth (outer edge) is moderately curved forward. It bends back in the upper half and forms a wide sine at the approach of the mouth to the housing wall of the previous turn. A pronounced sinulus (on the upper edge of the mouth at the contact with the housing wall, e.g. in Renea paillona ) is only indicated. Below the indicated sinulus, the palatal wall is very briefly curved inward. The angularis is small but clearly developed. The narrow neck bulge is only weakly developed, it becomes somewhat stronger or higher towards the base. The navel is closed by a parietal callus. The housing is brownish in color and the surface is very shiny.

Similar species

The ribbed sludge needle differs from all other Renea species (with the exception of Renea gormonti ) due to the characteristic sculpture of the housing . The casing of Renea gormonti is more cylindrical with less curved windings. The mouth is strongly thickened in R. gormonti .

Geographical distribution and habitat

The distribution area of the species has three separate areas. The northern area stretches from the Loferer Steinberge ( Upper Austria ) and its surroundings over the Berchtesgaden area ( Bavaria ) to Lake Hallstatt and its surroundings ( Land Salzburg ). The southeast area of Renea veneta extends from Lake Garda eastwards over the Italian Southern Alps to the Isonzo Valley near Tolmin ( Slovenia ); it does not touch Austrian territory. The southwest area of Renea veneta in the Italian province of Savona was first described by Boato et al. (1985: 251) .

The animals live in the mountains in the rubble and the leaf litter of forests on calcareous soils.

Taxonomy

The taxon was created in 1865 by Giulio Andrea Pirona as Acicula spectabilis var. Veneta nov. var. suggested. Already de Betta (1870: 1479, 1513) summed up the taxon as a separate kind of, well Paulucci (1883: 5) , Pollonera (1889: 51) , Westerlund (1890: 89) and Kobelt (1894: 9) (as Acme Veneta ). Acme pironae Pollonera, 1889 is a more recent synonym of Renea veneta Pirona, 1865.

Differences in the enclosures between the north and south areas were not found. The ribbed sludge needle ( Renea veneta ) and Renea spectabilis occur together in some localities without intermediate forms (= hybrids) being formed. This proves that Renea veneta and Renea spectabilis are indeed separate species and are reproductively isolated. The southwest area lies in the middle of the distribution area of Renea elegantissima . Here, too, there are no intermediate forms, the two species are reproductively isolated.

Danger

The German Red List classifies the species as extremely rare. Overall, the species is not endangered according to IUCN .

supporting documents

literature

Eugenio de Betta: Malacologia Veneta. Catalogo sinottico ed analitico dei molluschi terrestri e fluviatili viventi nelle provincie venete. In: Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti. (3) 15, Venice 1870, pp. 1396–1531.
A. Boato, M. Bodon, F. Giusti: Molluschi terrestri e d'acqua dolce deglie Alpi Liguri. In: Lavori della Società Italiana di Biogeografia. 9, [1982], Forli 1985 ?, pp. 237-371.
HD Boeters, E. Gittenberger, P. Subai: The Aciculidae (Mollusca, Gastropoda, Prosobranchia). In: Zoologische Verhandelingen. 252, Leiden 1989, pp. 209-214.
Rosina Fechter, Gerhard Falkner: Mollusks. (= Steinbach's natural guide 10). Mosaik-Verlag, Munich 1990, ISBN 3-570-03414-3 , p. 126.
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.
W. Kobelt In: EA Rossmässler, Icon. Land & Freshwater Minor. (new version) 7 (1-2) 1894, pp. 1-40, plates 181-190.
M. Paulucci: Sul'Acme moutoni, Dupuy e l'Acme veneta, Pirona. In: Bullettino della Società Malacologia Italiana. 9, 1883, pp. 5-10.
Carlo Pollonera: Note malacologiche. V. Acme Italiane del gruppo delle costulatae. In: Bull. Soc. Malac. Italiana. 14, 1889, pp. 50-54, plate 2.
CA Westerlund: Fauna paläarct. Reg. Binnenconch., I. Supplement, 1890, pp. 1-179.
Vollrath Wiese: Germany's land snails. Quelle & Meyer, Wiebelsheim 2014, ISBN 978-3-494-01551-4 (p. 31).
Francisco W. Welter-Schultes: European non-marine molluscs, a guide for species identification. (= Identification book for European land and freshwater mollusks). Planet Poster Ed., Göttingen 2012, ISBN 978-3-933922-75-5 .

Individual evidence

↑ Kerney et al. (1983, pp. 73/4)
^ Giulio Andrea Pirona: Prospetto dei molluschi terrestri e fluviatili finora raccolti nel Friuli. In: Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti. (3) 10 Venice 1865, pp. 675–708.
↑ Margret Binot-Hafke, Sandra Balzer, Nadine Becker, Horst Gruttke, Heiko Haupt, Natalie Hofbauer, Gerhard Ludwig, Günter Matzke-Hajek, Melanie Strauch (Red.): Red List of Endangered Animals, Plants and Mushrooms in Germany. Volume 3: Invertebrates (Part 1). (= Nature Conservation and Biodiversity 70 (3)). Federal Agency for Nature Conservation, Bonn-Bad Godesberg 2012, ISBN 978-3-7843-5231-2 .
↑ M. Falkner, T. von Proschwitz, J. Rüetschi: Renea veneta. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 11 December 2012.

On-line

Animal Base - Renea veneta (Pirona, 1865)

annotation

↑ The German trivial name Gerippte Mulmnadel is not particularly meaningful because the ribbing is a typical feature of the genus Renea , i. H. all other ten species of the genus are also ribbed.

Web links

[Kerney-1] Kerney et al. (1983, pp. 73/4)

[Pirona-3] Giulio Andrea Pirona: Prospetto dei molluschi terrestri e fluviatili finora raccolti nel Friuli. In: Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti. (3) 10 Venice 1865, pp. 675–708.

[RL2012-4] Margret Binot-Hafke, Sandra Balzer, Nadine Becker, Horst Gruttke, Heiko Haupt, Natalie Hofbauer, Gerhard Ludwig, Günter Matzke-Hajek, Melanie Strauch (Red.): Red List of Endangered Animals, Plants and Mushrooms in Germany. Volume 3: Invertebrates (Part 1). (= Nature Conservation and Biodiversity 70 (3)). Federal Agency for Nature Conservation, Bonn-Bad Godesberg 2012, ISBN 978-3-7843-5231-2 .

[IUCN_red_list-5] M. Falkner, T. von Proschwitz, J. Rüetschi: Renea veneta. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 11 December 2012.

[2] The German trivial name Gerippte Mulmnadel is not particularly meaningful because the ribbing is a typical feature of the genus Renea , i. H. all other ten species of the genus are also ribbed.