Renea (gastropod)
Ribbed Mulmnadel ( Renea veneta )
Renea is a genus in the country live snails from the order of Architaenioglossa ("old Bandzüngler ").
- 4.1 Literature
- 4.2 Notes and references
Features
The dextral body of representatives of the genus Renea are 1.8 to 6.3 mm high and 0.6 to 2.0 mm wide. They are cylindrical and have up to seven turns. The last whorl rises somewhat. The housings are ribbed tight, between the ribs are very weak spiral grooves to recognize those who are a little more clearly in only two species. For all species no seam edge is formed. Some species have a heavily modified convolution, which can lead behind the mouth and adjacent to the suture to the formation of a " breathing hole " (with Renea singularis ). A neck ridge is not or only weakly developed.
The whitish translucent body is in relation to housing comparatively small and slender. The head is offset by an angle to the edge of the sole furrow from the neck. The sole is edged by a weaker and a stronger longitudinal furrow formed by the body. At the top of the muzzle is far vorstreckbar. The thread-like antennae are long and can be completely withdrawn. The cover on the rear part of the foot is quite large and has 2 ½ to 2 ¾ whorls on.
The animals are dioecious. The comparatively few eggs, which are deposited by the females, are very large in proportion to body size.
Similar genera
The genus Renea differs from the other genera of the Mulmnadeln ( Aciculidae ) as follows: the species of the genus Platyla are smooth, without sculpture. The genus acicula has only radial grooves, species of the genus Menkia next radial grooves and spiral grooves. However, both genera have no radial ribs.
Geographical distribution
The distribution of Renea types ranging from the French and Italian Alps, the northern Italian Alps, northern Apennines, through Slovenia, Croatia and Bosnia and Herzegovina to Montenegro and Albania. In addition an island- like area in the Austrian states of Upper Austria and Salzburg.
Taxonomy and Nomenclature
The taxon Renea was proposed in 1880 by Geoffrey Nevill. Type species by monotype is Renea bourguignatiana Nevill, 1880. There are a whole series of recent synonyms.
- Microceras Sandberger, 1886 (non microceras Hall, 1845); Type species ( monotype ): Renea microceras
- Pleuracme Kobelt, 1894; Type species ( subsequent offer designated by Kobelt, 1894: p 2): Renea spectabilis
- Megalacme Kobelt & Möllendorff, 1899; Type species ( subsequent offer of designated Boeters and others, 1989: p? ): Renea spectabilis.
- Pseudotruncatella Andreae, 1904; Type species ( subsequent offer designated by Andreae, 1904: p 15): Renea microceras.
- Caziotia Pollonera, 1905; Type species ( monotype ): Renea singularis.
After the Fauna Europaea and AnimalBase following extant species are currently assigned to the genus Renea:
- Renea Berica Niero, Nardi & Braccia, 2012
- Renea bourguignatiana Nevill, 1880
- Renea elegantissima ( Pini, 1886)
- Renea gentilei ( Pollonera, 1889)
- Renea gormonti Boeters, Gittenberger & Subai, 1989
- Renea kobelti (Wagner, 1910) Renea kobelti kobelti (Wagner, 1910)
- Renea kobelti albanica Boeters, Gittenberger & Subai, 1989.
- Renea singularis singularis ( Pollonera, 1905)
- Renea singularis ripkeni Boeters, Gittenberger & Subai, 1989.