Diplommatinidae

from Wikipedia, the free encyclopedia
Diplommatinidae
Opisthostoma pulchellum with an irregular casing

Opisthostoma pulchellum with an irregular casing

Systematics
Class : Snails (gastropoda)
Subclass : Orthogastropoda
Superordinate : Caenogastropoda
Order : Architaenioglossa
Superfamily : Cyclophoroidea
Family : Diplommatinidae
Scientific name
Diplommatinidae
L. Pfeiffer , 1857

The Diplommatinidae are an extremely diverse family of land-living snails from the order of the Architaenioglossa ( Caenogastropoda ). All of them are small to very small species, only a few millimeters in size, which are included in the non-systematic group of "micromollusks".

features

The right- and left-wound, conical, egg-shaped-conical, sometimes irregularly rolled up and unrolled housings often have secondary deposits on the housing. Often the end turn is somewhat constricted. The housings usually have only a few turns. The mouth is usually rounded with or without folds or lamellas. The lid ( operculum ) is more or less calcified. The animals are of separate sex.

Geographical distribution and habitat

The species and genera of the Diplommatidae are native to the tropics in Southeast Asia, Melanesia, Micronesia, Mexico, Central America and the Antilles. They occur from sea level up to 2600 m above sea level. The oldest members of the family come from the Upper Cretaceous of Hungary, but the genus Ajkaia can hardly be distinguished from the housings of other genera of the Diplommatinidae.

Systematics

Until recently, the taxon Diplommatinidae comprised the two subfamilies Diplommatininae and Cochlostomatinae. According to the molecular genetic studies by Webster et al. (2012), however, the Cochlostomatinae are not closely related to the Diplommatininae, but form the sister group of the Megalomastomatidae , another family of the superfamily Cyclophoroidea . Webster et al. (2012) therefore have the Cochlostomatinae in the rank of a family, i. e. Cochlostomatidae raised. The family includes the following genera:

supporting documents

literature

  • Nicole B. Webster, Tom JM Van Dooren & Menno Schilthuizen: Phylogenetic reconstruction and shell evolution of the Diplommatinidae (Gastropoda: Caenogastropoda). Molecular Phylogenetics and Evolution 63 (2012) 625-638 doi : 10.1016 / j.ympev.2012.02.004
  • Wilhelm Wenz: Gastropoda. Part I: General Part and Prosobranchia. In: Handbuch der Paläozoologie Volume 6, 948 p., Berlin, Verlag von Gebrüder Borntraeger, 1938 (p. 479)

Individual evidence

  1. ↑ Somhak Panha, John B. Burch: Two New Species of Diplommatina from Thailand (Prosobranchia: Diplommatinidae). In: Natural History Journal of Chulalongkorn University , Volume 1, No. 1, 2001, pp. 33–37 PDF ( Memento of the original from January 5, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.aseanbiodiversity.info
  2. ^ Klaus Bandel, Frank Riedel: The Late Cretaceous gastropod fauna from Ajka (Bakony Mountains, Hungary): a revision. In: Annalen des Naturhistorisches Museum in Wien , Volume 94A, 1994, pp. 1–65, Vienna PDF  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Toter Link / www.geo.fu-berlin.de  
  3. ↑ a b OBIS Indo-Pacific Molluscan Database

Web links

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