Trochomorphidae

The Trochomorphidae are a family from the suborder of terrestrial snails ( gastropod ). Currently about 100 species of the family are described, which are native to Southeast Asia and the Pacific Islands.

Features

The housings are trochiform to lens-shaped and of medium size. There are formed 4.5 to 8 turns, the last whorl is angled outward. The shell is formed more or less thick, but still relatively strong. The color varies from light to blackish; often with a darker band. The housing is usually ornamented spirally, with spiral stripes and knots of varying sizes. Radial strips are usually only weakly developed, only very rarely stronger. The mouth is usually flattened with pointed ends. It is usually not reinforced, rarely with transverse Parietallamellen and basal and Palatallamellen. The umbilicus is almost always open, but varies from small and narrow to very wide. Only one genus in the navel is closed. The creeping is usually undivided, only the genus Eurybasis has a tripartite creeping. The rear end of Kriechfußes with mucus gland and Kaudalhorn. In the genital apparatus of the vas deferens enters apically into the epiphallus. A short flagellum may be present. The inner wall of the penis often has a Pilasterstruktur. The free oviduct usually has a perivaginal gland. In contrast, the vagina has no accessory organs. The spermathecae is developed differently in the mold.

Geographical distribution

The species of the family are in Southeast Asia, northern Australia, New Guinea, spreading to most tropical Pacific islands, the Andaman and Nicobar Islands, but they are missing in Hawaii.

System

  • Family Trochomorphidae Moellendorff, 1890 Genus Benthemia Forcart, 1964
  • Genus Brazieria Ancey, 1887 ( with the subgenera B. ( Brazieria ) Ancey, 1887 and B. ( Brazierella ) Baker, 1941)
  • Genus Calostropha Ancey, 1887
  • Genus Coxia Ancey, 1887
  • Genus Entomostoma Baker, 1941
  • Genus Eurybasis Gude, 1913
  • Genus Foxidonta Clench, 1950
  • Genus Geodiscus Iredale, 1941
  • Genus Hoholua Baker, 1941
  • Genus Kondoa Baker, 1941
  • Genus Liravidena Solem, 1959
  • Genus Peleliua Baker, 1941 ( with the subgenera P. ( Peleliua ) Baker, 1941 and P. Periryua ) Baker, 1941)
  • Genus Probrazieria Baker, 1941
  • Genus Theskelomensor Iredale, 1933
  • Genus Trochomorpha Albers, 1850 ( with the subgenera T. ( Trochomorpha ) Albers, 1850, T. ( Ludificator ) Baker, 1941 T. ( Lentitrochus ) Baker, 1941 T. Cototrochus ) Baker, 1941 T. Hartmanitrochus ) Solem, 1959 T. lauhala ) Baker, 1941 T. Nigritella ) Martens, 1860 and T. Rosselidena ) Iredale, 1941)
  • Genus Trochositala Schileyko, 2002
  • Genus Videna Adams & Adams, 1855
  • Have genus Videnoida, 1955
  • Genus Vitriconus Semper, 1873

Swell

Heterobranchia Stylommatophora
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