Thysanophoridae
Encyclopedia
Thysanophoridae is a family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of air-breathing land snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

s, terrestrial
Terrestrial animal
Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod mollusks in the superfamily Helicoidea
Helicoidea
Helicoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.-Families:There are 19 families within the superfamily Helicoidea according to Bouchet & Rocroi .* Helicidae...

 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005
Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

).

These are common woodland snails of North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

. They also occur in a few recorded spots in South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

.

This family is defined by the absence of both a diverticulum
Diverticulum
A diverticulum is medical or biological term for an outpouching of a hollow structure in the body. Depending upon which layers of the structure are involved, they are described as being either true or false....

 and a stimulatory organ.

Genera

  • Hojeda H. B. Baker, 1926
  • Itzamna
    Itzamna
    In Yucatec Maya mythology, Itzamna was the name of an upper god and creator deity thought to be residing in the sky. Little is known about him, but scattered references are present in early-colonial Spanish reports and dictionaries. Twentieth-century Lacandon lore includes tales about a creator...

    (unconfirmed)
  • Lyroconus (unconfirmed)
  • McLeania (unconfirmed)
  • Microconus (unconfirmed)
  • Microphysula
    Microphysula
    Microphysula is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Thysanophoridae.- Species :Species in the genus Microphysula include:* Microphysula cookei - Vancouver snail...

    Cockerell, 1926 - Spruce snails
  • Miroconus (unconfirmed)
  • Pulchriconus (unconfirmed)
  • Setidiscus (unconfirmed)
  • Suavitas (unconfirmed)
  • Thysanophora Strebel & Pfeffer, 1880 - type genus
    Type genus
    In biological classification, a type genus is a representative genus, as with regard to a biological family. The term and concept is used much more often and much more formally in zoology than it is in botany, and the definition is dependent on the nomenclatural Code that applies:* In zoological...

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