Sayellini is a
taxonomic tribe of minute
ectoparasitic
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson ha ...
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s,
marine gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
molluscs, or
micromollusks, in the very large 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
The subfamily Sayellinae is one of eleven recognised 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 ...
, 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).
According to
Schander, Van Aartsen & Corgen (1999) there are only two genera in this sub-family.
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 usage of the term in English language, English is in the discipline of anthropology. This definition is contested, in p ...
Sayellini in the subfamily
Pyramidellinae.
Genera
* ''
Sayella
''Sayella'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Pyramidellidae, the pyrams and their allies.Bouchet, P. (2011). ''Sayella'' Dall, 1885. Accessed through: World Register of Marine Species ...
''
Dall, 1885 - type genus of the tribe Sayellini
* ''
Petitella
''Petitella georgiae'', the false rummy-nose tetra, is a species of characin found in Amazon Basin in Brazil and Peru. It is a very popular aquarium fish. It is the sole member of its genus, but resembles two species from another genus, ''H ...
'' Wise, 1996
References
Pyramidellidae
{{Pyramidellidae-stub