Clausiliidae, also known by their common name the door snails, are a taxonomic family of small, very elongate, mostly left-handed, air-breathing land snails, sinistral terrestrial pulmonate gastropod mollusks.
Siebenrockiella is a small genus of black marsh turtles. It used to be monotypic but now has two species with the addition of the Philippine forest turtle. The genus was originally erected in 1869 by John Edward Gray under the name Bellia, commemorating Thomas Bell, but this name is a junior homonym of Bellia Milne-Edwards, 1848, a crustacean genus. The replacement name, Siebenrockiella, was published in 1929 by Wassili Adolfovitch Lindholm, and commemorates Friedrich Siebenrock.
Plagigeyeria is a genus of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
Theodoxus is a genus of nerites, small water snails with an operculum, some of which live in freshwater, and some in both freshwater and brackish water, aquatic gastropod mollusks in the family Neritidae, the nerites.
Valvata is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails.
Hygromiidae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.
Chaetoceros is probably the largest genus of marine planktonic diatoms with approximately 400 species described, although many of these descriptions are no longer valid. It is often very difficult to distinguish between different Chaetoceros species. Several attempts have been made to restructure this large genus into subgenera and this work is still in progress. However, most of the effort to describe species has been focused in boreal areas, and the genus is cosmopolitan, so there are probably many tropical species still undescribed. Some species are known from the fossil record, from the Quaternary of Sweden. It is the type genus of its family.
Enidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.
Anisus is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.
Monacha is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Trochulininae Lindholm, 1927 of the family Hygromiidae, the hairy snails and their allies.
Euomphalia is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Trochulininae of the family Hygromiidae, the hairy snails and their allies.
Iglica is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Moitessieriidae.
Malayemys is a genus of turtles in the family Geoemydidae. It was considered monotypic until 2005 It is found in several countries of Southeast Asia.
Caspicyclotus is a genus of gastropods belonging to the family Cyclophoridae.
Conulopolita is a genus of gastropods belonging to the family Oxychilidae.
Ljudmilena is a genus of gastropods belonging to the family Enidae.
Stenomphalia is a genus of gastropods belonging to the family Hygromiidae.
Turanena is a genus of gastropods belonging to the family Enidae.
