Pyramidellinae is a taxonomic

Taxonomy

Taxonomy is the science of identifying and naming species, and arranging them into a classification. The field of taxonomy, sometimes referred to as "biological taxonomy", revolves around the description and use of taxonomic units, known as taxa...

 subfamily of minute sea snail

Sea snail

Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

s, marine

Marine (ocean)

Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusks in the family Pyramidellidae

Pyramidellidae

Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs or micromolluscs....

, the pyrams and their allies.

Taxonomy

It is one of eleven recognised subfamilies of the marine

Marine (ocean)

Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod family Pyramidellidae

Pyramidellidae

Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs or micromolluscs....

 (according to the taxonomy of Ponder & Lindberg, 1997

Taxonomy of the Gastropoda (Ponder & Lindberg, 1997)

The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs...

), which are as follows: Odostomiinae

Odostomiinae

Odostomiinae, Odostomia snails and their allies, is a taxonomic subfamily of minute parasitic sea snails. These are marine heterobranch gastropod mollusks, or micromollusks, in the family Pyramidellidae.-Taxonomy:...

, Turbonillinae

Turbonillinae

Turbonillinae is a subfamily of mostly minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.-Taxonomy:...

, Chrysallidinae

Chrysallidinae

Chrysallidinae is a taxonomic group of very small sea snails in the family Pyramidellidae.- Taxonomy :Chrysallidinae has been one of eleven recognized subfamilies of the gastropod family Pyramidellidae...

, Cingulininae

Cingulininae

Cingulinini is a taxonomic tribe of very small sea snails, marine gastropod mollusks in the family Pyramidellidae.- Taxonomy :Cingulininae was first introduced by Saurin in 1959, and according to Schander, Van Aartsen & Corgan it comprises seven genera; Cingulina, Cinctigua, Coemansia,...

, Cyclostremellinae

Cyclostremellinae

Cyclostremellini is a tribe, a taxonomic grouping, of minute sea snails, marine gastropod mollusks or micromollusks, in the family Pyramidellidae, the pyrams.- Taxonomy :...

, Sayellinae

Sayellinae

Sayellini is a taxonomic tribe of minute ectoparasitic sea snails, marine gastropod molluscs, or micromollusks, in the very large family Pyramidellidae, the pyrams and their allies.- Taxonomy :...

, Syrnolinae, Eulimellinae

Eulimellinae

Eulimellini is a tribe of minute sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.- Taxonomy :According to Schander, Van Aartsen & Corgan there are 17 genera in the Eulimellinae....

, Pyramidellinae, Odostomellinae

Odostomellinae

Odostomellini is a taxonomic tribe of minute sea snails, marine gastropod molluscs within the family Pyramidellidae the pyrams and their allies.- Taxonomy :...

 and Tiberiinae

Tiberiinae

Tiberia is a genus of minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.- Taxonomy :...

.

2005 taxonomy

In the taxonomy of Bouchet & Rocroi

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...

 (2005), this subfamily consists of the following tribe

Tribe (biology)

In biology, a tribe is a taxonomic rank between family and genus. It is sometimes subdivided into subtribes.Some examples include the tribes: Canini, Acalypheae, Hominini, Bombini, and Antidesmeae.-See also:* Biological classification* Rank...

s, adding the tribe Sayellini containing only two genera Sayella

Sayella

Sayella is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.-Species:Species within the genus Sayella include:* Sayella chesapeakea Morrison, 1939* Sayella fusca Sayella is a genus of sea snails, marine gastropod mollusks in the family...

and Petitella.

• Tribe Pyramidellini Gray, 1840
• Tribe Sayellini Wise, 1996 - former subfamily Sayellinae

Genera

According to Schander, Van Aartsen & Corgen (1999) there are 12 genera within the Pyramidellinae:

tribe Pyramidellini

• Callolongchaeus Dall, 1903
• Creonella Wade, 1917
• Lacrimiforma Sohl, 1963
• Locklinia Bartsch, 1955
• Longchaeus
  Longchaeus
  Longchaeus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.-Species:Species within the genus Longchaeus include:* Longchaeus candidus...
  
  Mörch
  Otto Andreas Lowson Mörch
  Otto Andreas Lowson Mörch was a biologist, specifically a malacologist. He lived in Sweden, in Denmark, and in France.- Taxa described :Bibliography and taxa described by Otto Andreas Lowson Mörch include:...
  
  , 1875
• Milda Dall & Bartsch, 1904
• Otopleura
  Otopleura
  Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.-Species:Species within the genus Otopleura include:* Otopleura auriscati...
  
  Fischer, 1885
• Pharcidella
  Pharcidella
  Pharcidella is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.-Species:The following species were brought into synonymy:...
  
  Dall
  W. H. Dall
  William Healey Dall was an American naturalist, a prominent malacologist, and one of the earliest scientific explorers of interior Alaska...
  
  , 1889
• Pyramidella
  Pyramidella
  Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Pyramidella is the type genus of the family Pyramidellidae.-Species:...
  
  Gray, 1840 - 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...
  
   of the tribe family Pyramidellidae
• Triptychus
  Triptychus
  Triptychus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.-Species:Species within the genus Triptychus include:* Triptychus litosbathron Pimenta, Santos & Absalao, 2008...
  
  Mörch
  Otto Andreas Lowson Mörch
  Otto Andreas Lowson Mörch was a biologist, specifically a malacologist. He lived in Sweden, in Denmark, and in France.- Taxa described :Bibliography and taxa described by Otto Andreas Lowson Mörch include:...
  
  , 1875
• Urambella Laseron, 1959
• Voluspa Dall & Bartsch, 1904

tribe Sayellini