Clithon retropictum

Clithon retropictum
	a live Clithon retropictum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Neritimorpha; clade Cycloneritimorpha
Superfamily:	Neritoidea
Family:	Neritidae
Subfamily:
Tribe:
Genus:	Clithon
Species:	C. retropictum
Binomial name
	Clithon retropictum; (von Martens, 1879)
Synonyms
	Clithon retropictus (incorrect gender ending); Neritina nubila Martens, 1860 Neritina obtusa Reeve, 1855 Neritina retropicta Martens, 1879

Clithon retropictum is a species of freshwater and brackish water snail with an operculum, a nerite. It is an aquatic gastropod mollusk in the family Neritidae, the nerites.

Distribution[]

This species occurs in Japan:^[1] Honshu, Kyushu and Shikoku.^[2]

Description[]

Clithon retropictum shells

Habitat[]

This nerite lives in brackish water as well as freshwater.^[1]

Feeding habits[]

Clithon retropictum is herbivorous species.^[3]

Life cycle[]

Clithon retropictum is oviparous.^[1] Juveniles hatch from eggs in September.^[1] The lifespan of Clithon retropictum is up to 12 years and it belongs among the most long-lived of freshwater gastropods.^[4]

Parasites[]

Vibrio parahaemolyticus^[5]

References[]

^ ^a ^b ^c ^d FURUJO Yuki & TOMIYAMA Kiyonori. Distribution and Microhabitat of Coexisting Two Freshwater Snail Species, Semisulcospira libertina (Gould)(Prosobranchia; Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae). The Japanese journal of malacology. Venus, Vol. 59, No. 3(20000930), pp. 245-260.
^ (in Japanese) イシマキガイ Clithon retropictus Archived 2011-10-04 at the Wayback Machine. accessed 6 January 2011.
^ (in Japanese) Ohara T. & Tomiiyama K. (2000). "Niche segregation of coexisting two freshwater snail species, Semisulcospira libertina (Gould) (Prosobranchia: Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae)". Venus 59(2): 135–147. CiNii.
^ Shigemiya, Y.; Kato, M. (2001). "Age distribution, growth, and lifetime copulation frequency of a freshwater snail, Clithon retropictus (Neritidae)". Population Ecology. 43 (2): 133. doi:10.1007/PL00012024.
^ Kumazawa, N. H.; Kato, E.; Takaba, T.; Yokota, T. (1988). "Survival of Vibrio parahaemolyticus in two gastropod molluscs, Clithon retropictus and Nerita albicilla". Nihon Juigaku Zasshi. The Japanese Journal of Veterinary Science. 50 (4): 918–924. doi:10.1292/jvms1939.50.918. PMID 3172602.

External links[]

https://web.archive.org/web/20070909103814/http://shell.kwansei.ac.jp/~shell/pic_book/data08/r000792.html photos of shells
https://web.archive.org/web/20080907101015/http://www.gastropods.com/8/Shell_8638.html photos of shells

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[habitat-1] FURUJO Yuki & TOMIYAMA Kiyonori. Distribution and Microhabitat of Coexisting Two Freshwater Snail Species, Semisulcospira libertina (Gould)(Prosobranchia; Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae). The Japanese journal of malacology. Venus, Vol. 59, No. 3(20000930), pp. 245-260.

[2] (in Japanese) イシマキガイ Clithon retropictus Archived 2011-10-04 at the Wayback Machine. accessed 6 January 2011.

[3] (in Japanese) Ohara T. & Tomiiyama K. (2000). "Niche segregation of coexisting two freshwater snail species, Semisulcospira libertina (Gould) (Prosobranchia: Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae)". Venus 59(2): 135–147. CiNii.

[4] Shigemiya, Y.; Kato, M. (2001). "Age distribution, growth, and lifetime copulation frequency of a freshwater snail, Clithon retropictus (Neritidae)". Population Ecology. 43 (2): 133. doi:10.1007/PL00012024.

[5] Kumazawa, N. H.; Kato, E.; Takaba, T.; Yokota, T. (1988). "Survival of Vibrio parahaemolyticus in two gastropod molluscs, Clithon retropictus and Nerita albicilla". Nihon Juigaku Zasshi. The Japanese Journal of Veterinary Science. 50 (4): 918–924. doi:10.1292/jvms1939.50.918. PMID 3172602.

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