''Meioceras'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of minute
sea snails,
marine gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...
s or
micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also ...
s in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Caecidae
Caecidae is a taxonomic family of very small and minute sea snails or micromolluscs, marine gastropod molluscs in the order Littorinimorpha.Bouchet, P.; Gofas, S. (2013). Caecidae. Accessed through: World Register of Marine Species at http: ...
.
Species
Species within the genus ''Meioceras'' include:
* ''
Meioceras cornucopiae
''Meioceras cornucopiae'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, app ...
'' Carpenter, 1858
* ''
Meioceras cubitatum
''Meioceras cubitatum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, appli ...
'' Folin, 1868
* † ''
Meioceras mateldae
''Meioceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.
Species
Species within the genus ''Meioceras'' include:
* '' Meioceras cornucopiae'' Carpenter, 1858
* '' Meioceras cubitatum ...
''
Selli, 1974
* ''
Meioceras nitidum
''Meioceras nitidum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied ...
''
(Stimpson, 1851)
* ''
Meioceras tumidissimum
''Meioceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.
Species
Species within the genus ''Meioceras'' include:
* '' Meioceras cornucopiae'' Carpenter, 1858
* '' Meioceras cubitatum ...
''
de Folin, 1869
; Species brought into synonymy:
* ''Meioceras bermudezi''
Pilsbry & Aguayo, 1934: synonym of ''Meioceras cornucopiae''
Carpenter, 1859
* ''Meioceras bitumidum''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras boucheti''
Pizzini & Raines, 2011: synonym of ''
Mauroceras boucheti
''Mauroceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.MolluscaBase eds. (2021). MolluscaBase. Mauroceras Vannozzi, 2019. Accessed through: World Register of Marine Species at: https: ...
''
(Pizzini & Raines, 2011) (original combination)
* ''Meioceras carpenteri''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras cingulatum''
Dall, 1892: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras constrictum''
Pilsbry & Aguayo, 1933: synonym of ''Meioceras cornucopiae''
Carpenter, 1859
* ''Meioceras contractum''
de Folin, 1874: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras cornubovis''
Carpenter, 1859: synonym of ''Meioceras cornucopiae''
Carpenter, 1859
* ''Meioceras coxi''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras crossei''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras deshayesi''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras fischeri''
de Folin, 1870: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras imiklis''
de Folin, 1870: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras kajiyamai''
Habe, 1963: synonym of ''
Mauroceras kajiyamai
''Mauroceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.MolluscaBase eds. (2021). MolluscaBase. Mauroceras Vannozzi, 2019. Accessed through: World Register of Marine Species at: https: ...
''
(Habe, 1963) (original combination)
* ''Meioceras legumen''
(Hedley, 1899): synonym of ''
Mauroceras legumen
''Mauroceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.MolluscaBase eds. (2021). MolluscaBase. Mauroceras Vannozzi, 2019. Accessed through: World Register of Marine Species at: https: ...
''
(Hedley, 1899)
* ''Meioceras leoni''
Bérillon, 1874: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras mariae''
de Folin, 1881: synonym of ''Meioceras cornucopiae''
Carpenter, 1859
* ''Meioceras moreleti''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras rhinoceros''
Pizzini, Raines & Vannozzi, 2013: synonym of ''
Mauroceras rhinoceros
''Mauroceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.MolluscaBase eds. (2021). MolluscaBase. Mauroceras Vannozzi, 2019. Accessed through: World Register of Marine Species at: https: ...
''
(Pizzini, Raines & Vannozzi, 2013) (original combination)
* ''Meioceras sandwichense''
de Folin, 1881: synonym of ''
Mauroceras sandwichense
''Mauroceras'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Caecidae.MolluscaBase eds. (2021). MolluscaBase. Mauroceras Vannozzi, 2019. Accessed through: World Register of Marine Species at: https: ...
''
(de Folin, 1881) (original combination)
* ''Meioceras subinflexum''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
* ''Meioceras tenerum''
de Folin, 1869: synonym of ''Meioceras cubitatum''
de Folin, 1868
* ''Meioceras undulosum''
de Folin, 1869: synonym of ''Meioceras nitidum''
(Stimpson, 1851)
References
External links
Pizzini M., Raines B. & Vannozzi A. (2013) ''The family Caecidae in the South-West Pacific (Gastropoda: Rissooidea).'' Bollettino Malacologico, 49 (suppl. 10): 1-78
Caecidae
{{Caecidae-stub