''Crithe'' is a
genus of minute
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
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
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 ...
mollusks 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
Cystiscidae
Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks.
Description
The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; ...
. This genus is sometimes still placed within the
Marginellidae.
These tiny gastropods have a shell which is colorless and is transparent when fresh.
Distribution
This genus is found in the
Indo-Pacific
The Indo-Pacific is a vast biogeographic region of Earth.
In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...
.
Shell description
Shell minute to small, white, hyaline;
spire usually immersed, rarely low; lip thickened, smooth, lacking denticulation; external
varix
A varix (pl. varices) is an abnormally dilated vessel with a tortuous course. Varices usually occur in the venous system, but may also occur in arterial or lymphatic vessels.
Examples of varices include:
* Varicose veins, large tortuous veins usua ...
absent; siphonal notch absent; posterior notch absent; columella multiplicate, with 6-8 plications plus parietal lirae, plications usually excavated inside aperture due to collabral parietal callus ridge.
Species
Species within the genus ''Crithe'' include:
*''
Crithe algoensis
''Crithe algoensis'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.MolluscaBase eds. (2020). MolluscaBase. Crithe algoensis (E. A. Smith, 1901). Accessed through: World Register of Mar ...
''
( Smith, 1901)
*''
Crithe atomaria''
Gould
Gould may refer to:
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* Gould (name), a surname
Places United States
* Gould, Arkansas, a city
* Gould, Colorado, an unincorporated community
* Gould, Ohio, an unincorporated community
* Gould, Oklahoma, a town
* Gould, West Virginia, a ...
, 1860
*''
Crithe caledonica''
Boyer, 2003
*''
Crithe cassidiformis''
Boyer, 2018
*''
Crithe cossinea''
Cossignani, 1997
*''
Crithe gofasi''
Boyer, 2003
*''
Crithe huna''
(Kay, 1979)
*''
Crithe marianoi''
Cossignani, 2001
*''
Crithe nanaoensis''
( Habe, 1951)
*''
Crithe nipponica''
( Habe, 1951)
*''
Crithe togatulus''
Boyer, 2018
References
* 1995. Revision of the Supraspecific Classification of Marginelliform Gastropods. The Nautilus 109(2 & 3):43-110. (latest family review)
{{Commonscat
Cystiscidae