Gigantomilax

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Gigantomilax
Systematics
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Superfamily : Limacoidea
Family : Schnegel (Limacidae)
Subfamily : Limacinae
Genre : Gigantomilax
Scientific name
Gigantomilax
Boettger , 1883

Gigantomilax (in literature and websites also with a reversed letter as Gigantolimax ) is a genus of the slug family of snails (Limacidae) from the subordination of land snails (Stylommatophora).

features

The species of the genus Gigantomilax are large animals that are contracted up to 10 cm long, stretched out to 15 cm. The coat takes up about a third of the length of the body. The breathing hole is in the middle or slightly behind the middle of the mantle shield. Its rear end is rounded. The keel is strong and extends the entire length of the back to the mantle shield. It consists of three rows of wrinkles, further elongated, relatively high wrinkles run parallel to the keel. The sole of the foot is comparatively very wide with a strong edge area.

Of the three intestinal loops, the first loop is almost untwisted, the second heavily twisted and the third intestinal loop is again untwisted and much shorter than the other intestinal loops. There is no appendix. The sex gland sits behind the intestine and forms the apex of the intestinal sac. The spermatic duct is very short and runs directly to the penis; so does not form a loop. The penis is baggy or short cylindrical. There may be a small blind process or flagellum on the penis. A sphincter muscle and a large stimulator are developed internally. The free stretch of the fallopian tube is also relatively short. There is no vagina. The stem of the comparatively voluminous sperm library is short.

Geographical distribution

The species of the genus Gigantomilax occur in the Caucasus, north-west Turkey and northern Iran, as well as on the Balearic Islands and Israel.

Taxonomy

The genus Gigantomilax was established in 1883 by Oskar Boettger as a section of the genus Amalia Moquin-Tandon, 1855. Since Hesse (1926) it has been generally understood as an independent genre. It is divided into three sub-genera by Schileyko (2003):

The species list was completed after the Terrestrial Slugs Web website .

supporting documents

literature

  • Anatolij A. Schileyko 2003: Treatise on Recent Terrestrial Pulmonate Molluscs Part 11 Trigonochlamydidae, Papillodermidae, Vitrinidae, Limacidae, Bielziidae, Agriolimacidae, Boettgerillidae, Camaenidae. Ruthenica, Supplement 2 (11): 1467-1626, Moscow ISSN  0136-0027
  • Schütt, Hartwig 2010: Turkish Land Snails. 560 S., Solingen, Verlag Natur & Wissenschaft ISBN 9783936616637
  • Simroth, Heinrich 1886: About known and new Palaearctic nudibranchs. Yearbooks of the German Malacoological Society, 13: 311-342, Frankfurt / M.
  • Heinrich Simroth 1912: New contributions to the Caucasian nudibranch fauna. Messages from the Caucasian Museum, 6: 1-140, Tbilisi Online at archive.org
  • Sysoev, Alexander & Anatolij A. Schileyko 2009: Land Snails and Slugs of Russia and Adjacent Countries. 312 pp., Sofia, Pensoft ISBN 978-954-642474-7 .

Individual evidence

  1. ↑ Simroth, Heinrich 1901: The nudibranch fauna of the Russian Empire. 321 S., St. Petersburg Online at Biodiversity Heritage Library (e.g. BS 12, on this page both the correct spelling Gigantomilax and the misspelling Gigantolimax ).
  2. ↑ Heller, Josef 2009: Land Snails of the Land of Israel: Natural History and a Field Guide. 360 S., Sofia & Moscow, Pensoft. ISBN 978-954-642-510-2
  3. ↑ Boettger, Oskar 1883: Boettger, O. 1883. Seventh directory of molluscs from the Caucasus countries, based on consignments from Mr. Hans Leder, z. Currently in Helenendorf near Elisabetpol (Transcaucasia). Yearbooks of the German Malacoological Society, 10: 135-198, Frankfurt / M. Online at Biodiversity Heritage Library
  4. ^ Hesse, Paul 1926: The nudibranchs of the Palaearctic region. Treatises of the Archives for Molluscology, 2 (1): 1-152, Frankfurt / M.
  5. ↑ Borredà Gonzales, Vicente & Albert Martínez-Ortí 2008: Descripción de un nuevo limácido de Menorca (Islas Baleares): Gigantomilax (Vitrinoides) benjaminus sp. n. (Gastropoda, Pulmonata). Animal Biodiversity and Conservation, 31 (1): 57-66, Barcelona PDF .
  6. ↑ Terrestrial Slugs Web - Gigantomilax .