Hypnophila

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Hypnophila
Hypnophila pupaeformis

Hypnophila pupaeformis

Systematics
Superordinate : Heterobranchia
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Superfamily : Cochlicopoidea
Family : Azecidae
Genre : Hypnophila
Scientific name
Hypnophila
Bourguignat , 1858

Hypnophila is a genus of snails from the Azecidae familyin the suborder of land snails (Stylommatophora).

features

The elongated-egg-shaped to slim-spindle-shaped housing is up to 9 mm high and up to 3.3 mm wide. It has up to 7.5 strongly flattened turns on the periphery with a shallow seam. The apex is rounded and blunt. The case surface is smooth and appears polished. The color varies from almost colorless to yellowish, amber to chestnut brown. The mouth is ovate to elongated triangular with a slightly thickened outer lip in the lower two thirds. The inner lip has a spindle callus that gradually merges into the thread-like parietal callus. The parietalkallus forms a tooth (angularis) in the upper right corner of the mouth; a deep and narrow gap is formed here. The spindle is almost straight and more or less cut off at the base. The spindle wall is provided with a small tooth.

In the genital system, the egg ladder is unusually short. The long sperm duct branches off high up. It enters the moderately long penis apically. The retractor muscle attaches apically to the penis. The free fallopian tube is about as long as the vagina or slightly shorter. This is swollen with a glandular wall (perivaginal gland). The comparatively short stalk of the spermathec is not thickened, the rounded bladder extends to the albumin gland.

Geographical distribution and habitat

The species of the genus Hypnophila occur in North Africa, the Iberian Peninsula, in southern France, on Sardinia, Corsica and the islands of the Tuscan Archipelago, Aeolian Islands and Sicily, on the Balkan Peninsula to the Peloponnese. Some species are cave dwellers.

Taxonomy

The taxon was established from 1858 by as Azeca (Hypnophila) . Type species later determined by Geoffrey Nevill (1881) is Bulimus pupaeformis Cantraine, 1835. The following species are currently included in the genus Hypnophila .

Most authors consider the genus Gomphroa Westerlund, 1902 (type species: Zua boissii Dupuy, 1850) as a younger synonym of Hypnophila Bourguignat, 1858. Only Schileyko (1998) accepts Gomphroa as a valid genus. If the taxon were to be recognized as an independent taxon, it would have to be included in the Azecidae family.

supporting documents

literature

  • Edmund Gittenberger: On Iberian Cochlicopidae and the genus Cryptazeca Gastropoda, Pulmonata. Zoological Mededelingen (Leiden): 5723: 301-320, Leiden 1983 PDF .
  • Edmund Gittenberger: Southeast European Hypnophila species (Mollusca: Gastropoda Pulmonata: Cochlicopidae). Zoological Mededelingen Leiden, 67 (37): 517-524, 1993 PDF
  • María J. Madeira, María A. Elejalde, Luis J. Chueca & Benjamín J. Gómez-Moliner 2010: Phylogenetic Position of the Genus Cryptazeca and the Family Azecidae within the System of the Stylommatophora. Malacologia, 52 (1): 163-168 DOI .
  • 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): 1-127, Moscow 1998 ISSN  0136-0027

Individual evidence

  1. ^ Jules-René Bourguignat: Aménités malacologiques. Revue et Magasin de Zoologie pure et appliquée, (2) 10: 527-545, Paris 1858 Online at www.biodiversitylibrary.org (p. 530).
  2. ^ Geoffrey Nevill: Note. Proceedings of the Zoological Society of London, 1880: 664-666, London 1881 (published April 1881) online at www.biodiversitylibrary.org (p. 665).
  3. ↑ Fauna Europaea: Hypnophila Bourguignat 1858
  4. ↑ AnimalBase: hypnophila Bourguignat, 1858

Web links

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