Solatopupa

from Wikipedia, the free encyclopedia
Solatopupa
Solatopupa similis

Solatopupa similis

Systematics
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Superfamily : Pupilloidea
Family : Corn snails (Chondrinidae)
Subfamily : Granariinae
Genre : Solatopupa
Scientific name
Solatopupa
Pilsbry

Solatopupa is a genus of grain snails (Chondrinidae) from the suborder of land snails (Stylommatophora). Six species are currently included in the genus Solatopupa .

features

The cylindrical to spindle-shaped housings are 6.5 to 14.2 mm high and 2.8 to 4.2 mm high. They have 7 to 10 only slightly curved turns. The skin is moderately firm and yellowish to ivory in color, often with brown radial spots. The embryonic convolutions are smooth, the postembryonic convolutions have radial stripes or ribs at regular intervals. The mouth is egg-shaped with a thin, curved edge of the mouth. The maximum reinforcement of the mouth consists of seven teeth, a short angular tubercle, a lower parietal lamella, a (middle) spindle lamella, a short lower spindle lamella, and three palatal plicae. These elements are usually more or less reduced, in extreme cases they can even be completely absent. One navel is missing.

In the male sexual tract, the spermatic duct (vas deferens) runs along the vagina and is integrated in the lower part of the tissue of the penis. The spermatic duct is enlarged to form an epiphallus in the distal part before it enters the penis . This penetrates at the tip of the penis, next to a finger-shaped and moderately long blind sac (caecum). Inside, the epiphallus has longitudinal folds and numerous very small papillae. The inside of the penis has two broad, low longitudinal folds. The penile retractor muscle divides into two strands, one attaches to the lower part of the penis, the other to the lower part of the epiphallus.

In the female reproductive tract, the vagina is about 2 to 3 times longer than the free fallopian tube (oviduct). The stem of the seminal vesicle (spermathec) is approximately cylindrical, the spermathec is partially embedded in the tissue of the egg duct (ovispermiduct) and / or the basal part of the albumin gland (protein gland).

Geographical distribution

The species of the genus Solatopupa occur in western Europe from northern Spain via France to southern England. Further to the east, the area extends from Italy (roughly from the height of Rome) to Switzerland ( Canton Ticino , naturalized there). One species occurs on the Mediterranean islands of Corsica and Sardinia .

Taxonomy and systematics

The taxon was established in 1917 by Henry Augustus Pilsbry . Type species is Solatopupa similis (Bruguière, 1792). The following species are currently assigned to the genus:

Type species of the genus Solatopupa Pilsbry, 1917 is Bulimus similis Bruguière, 1792 by the author of the genus Henry Augustus Pilsbry.

supporting documents

literature

  • Edmund Gittenberger: Contributions to the knowledge of the pupillacea: III. Chondrininae. Zoologische Verhandelingen, 127 (1): 3-267, 1973 ISSN  0024-1652 PDF .
  • Michael P. Kerney, RAD Cameron & Jürgen H. Jungbluth: The land snails of Northern and Central Europe. 384 pp., Paul Parey, Hamburg & Berlin 1983 ISBN 3-490-17918-8
  • Anatolij A. Schileyko: Treatise on Recent terrestrial pulmonate molluscs, Part 1. Achatinellidae, Amastridae, Orculidae, Strobilopsidae, Spelaeodiscidae, Valloniidae, Cochlicopidae, Pupillidae, Chondrinidae, Pyramidulidae. Ruthenica, Supplement 2 (1): 1-126, Moscow 1998 ISSN  0136-0027
  • 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

Individual evidence

  1. ^ Henry Augustus Pilsbry: Manual of Conchology. Second Series: Pulmonata, 24. Pupillidae (Gastrocoptinae). SI-XII, pp. 1-380, Philadelphia, 1916-1918 online at www.archive.org (p. 234).
  2. ↑ Fauna Europaea: Solatopupa Pilsbry 1917
  3. ↑ AnimalBase - Solatopupa Pilsbry, 1917

Web links

Commons : Solatopupa  - collection of images, videos and audio files