Cochlostoma macei
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Cochlostoma macei |
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| ( Bourguignat , 1869) |
Cochlostoma macei is a species of snail from the family of the forest cap snail (Cochlostomatidae) in the order Architaenioglossa ("old bandworm")that lives on land. The species name honors the then (1869) President of the Société des Sciences Naturelles, des Lettres et des Beaux-Arts de Cannes et de l'Arrondissement de Grasse August Macé.
features
The right-hand wound case is up to 10 mm high and 4 mm wide. It is oblong-conical with a rather pointed apex . Of the nine to ten turns, the upper turns are bulbous, the lower turns are well rounded. They gain weight slowly and regularly and are separated from each other by a deep seam. The last turn increases a little more, but does not increase. The sculpture consists of ribs that are fine and compact on the third and fourth turns. They are stronger on the other turns and are further apart. On the last turn the ribs are again closer at regular intervals and they are less sharp. The housing is horn-colored gray. The shell is thin and slightly translucent.
The slightly crooked muzzle is rounded in the frontal view with an angle at the upper end. It is greatly expanded, but the edge of the mouth is not bent back. This is heavily thickened and white. The edge of the mouth is drawn out to an ear at the edge of the spindle, but it does not rest on the penultimate passage.
Geographical distribution and habitat
The range of the species extends over the Départments Alpes-de-Haute-Provence (Clue de Chabrières, south of Digne-les-Bains , Castellane ), Var ( Gorges du Verdon , Mons ) and Alpes-Maritimes ( Saint-Cézaire-sur -Siagne , Saint-Vallier-de-Thiey near Grasse , Gréolières northwest of Gourdon , Villeneuve-Loubet , Gorges du Paillon near L'Escarène , Saint-Auban and Menton ) in the Provence-Alpes-Côte d'Azur region (France).
The animals live on rocks and dry stone walls between 250 m and 1500 m above sea level.
Taxonomy
The taxon was first described in 1869 by Jules René Bourguignat as Pomatias macei . Wilhelm Kobelt transferred the species to the genus or sub-genus Cochlostoma (Auritus) Westerlund, 1883. The fauna Europaea knows the species as Cochlostoma (Turritus) macei (Bourguignat 1869). Fauna Europaea and Louis Germain give the following synonyms :
- Pomatias galloprovincialis Locard, 1894
- Pomatias nevilli Locard, 1894 (after Germain)
The taxon was z. Sometimes confused with cochlostoma patulum . Gerhard Falkner published (in Fechter & Falkner 1990) one of the few images of Cochlostoma macei as Cochlostoma patulum .
Danger
The species is not considered endangered and is not protected. However, some populations live in protected areas, such as B. the Mercantour National Park .
supporting documents
literature
- Jules René Bourguignat: Description d'espèces nouvelles de mollusques terrestres du Département des Alpes-Maritimes. Mémoires de la Société des Sciences Naturelles, des Lettres et des Beaux-Arts de Cannes et de l'Arrondissement de Grasse, 1: 45-59 online at Gallica (p. 56).
- Louis Germain: Mollusques terrestres et fluviatiles (deuxième partie). Faune de France, 22: 479-897, IX-XIV, Taf. XIV-XXVI, Paris, 1931 For download (p. 585).
- Francisco W. Welter-Schultes: European non-marine molluscs, a guide for species identification = identification book for European land and freshwater mollusks. A1-A3 S., 679 S., Q1-Q78 S., Göttingen, Planet Poster Ed., 2012 ISBN 3-933922-75-5 , ISBN 978-3-933922-75-5
- Carl Agardh Westerlund: fauna of the inland conchylia living in the Palearctic region (Europe, Caucasia, Siberia, Turan, Persia, Kurdistan, Armenia, Mesopotamia, Asia Minor, Syria, Arabia, Egypt, Tripoli, Tunisia, Algeria and Morocco). V. Fam. Succinidae, Auriculidae, Limnæidae, Cyclostomidae & Hydrocenidae. Pp. 1–135, Lund, Håkan Ohlsson 1885 Online at www.biodiversitylibrary.org (p. 126).
Individual evidence
- ↑ a b Olivier Gargominy, Theo Ripken: Inventaire des Mollusques d 'interet patrimonial de la Region PACA. ZNIEFF PACA update programs. 20 p., Conservatoire Etudes des Ecosystèmes de Provence / Alpes du Sud, Laboratoire de Biologie des Invertébrés Marins et Malacologie - Muséum national d'Histoire naturelle, 1999 PDF ( page no longer available , search in web archives ) Info: The link was automatically created as marked defective. Please check the link according to the instructions and then remove this notice.
- ^ A b c Arnould Locard: Conchyliologie française. Les coquilles terrestres de France. Description des familles, genres et espèces. Avec 515 figures dessinées d'après nature et intercalées dans le texte. Pp. 1–370, Paris, Baillière 1894. Online at Gallica (pp. 352, 353)
- ^ Wilhelm Kobelt: The animal kingdom. A compilation and identification of the recent animal forms. 16. Delivery. Mollusca. Cyclophoridae. P. I-XXXIX, P. 1–662, Berlin, Friedländer 1902 Online at www.biodiversitylibrary.org (P. 522)
- ↑ Fauna Europaea - Cochlostoma (Turritus) macei (Bourguignat 1869)
- ^ Gerhard Falkner: Inner mollusks. In: Rosina Fechter & Gerhard Falkner: Mollusks. European marine and inland mollusks. Steinbach's Nature Guide, 10: 112-280, Munich, Mosaik-Verlag 1990.
- ↑ Feher, Z. 2011. Cochlostoma macei . In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. www.iucnredlist.org Downloaded on 23 July 2013.
On-line
annotation
- ↑ The chapter "Characteristics" is essentially based on the original description by Bourguignat and on the description by Louis Germain. The German descriptions by Westerlund and Kobelt show some astonishing deviations from the information in Bourguignat. For example, B. Westerlund that the ribs on the middle turns are strong, oblique and spacious. In the original description, however, it says: "... sur les troisième et quatrième tours sont fines et serrées ...", so fine and compact. The description of Westerlund contains further such inaccuracies.