Cyclostremellini is a minor tribe, a

taxonomic 280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation ...

grouping, of minute

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s or

micromollusk A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also ...

s, in the family

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. The great majority of species of pyrams are micromol ...

, the pyrams and their allies.

Taxonomy

Cyclostremellinae has been a subfamily one of eleven recognised in the

(according to the taxonomy of Ponder &

Lindberg Lindberg is a municipality in the district of Regen in Bavaria in Germany in the immediate neighbourhood of the larger town Zwiesel. Location Lindberg lies in the Danube Forest (''Donau-Wald'') region in the middle of the Bavarian Forest on ...

, 1997), and according to

Schander Carl Fredrik Christoffer Schander (21 May 1960 – 21 February 2012) was a professor in marine biology at the University of Bergen, Norway. He was also a thematic leader at the Centre of Excellence in Geobiology. His doctoral thesis (1997, Uni ...

, van Aartsen and Corgan (1999) it comprises two genera, '' Cyclostremella'' and '' Pseudoskenella''. In the taxonomy of Bouchet & Rocroi (2005), this subfamily has been downgraded to the rank of

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...

Cyclostremellini in the subfamily

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 The subfamily Odostomiinae ...

Genera

Genera within the tribe Cyclostremellini include: * '' Cyclostremella'' Bush, 1897 ** ''Cyclostremella californica'' Bartsch, 1907 ** '' Cyclostremella concordia '' Bartsch, 1920 ** ''Cyclostremella conradia '' Bartsch, 1920 ** '' Cyclostremella humilis'' Bartsch, 1897WoRMS (2010). ''Cyclostremella humilis'' Bush, 1897. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420443 on 2011-03-14 * '' Pseudoskenella'' Ponder, 1973 ** '' Pseudoskenella depressa'' Ponder, 1973

References

External links

*
OBIS Indo-Pacific Molluscan Database
Pyramidellidae {{Pyramidellidae-stub