Ensiklopedia Dunia

Technopedia Center

Faculty of Engineering and Computer Science
S1 Informatics S1 Information Systems S1 Information Technology S1 Computer Engineering S1 Electrical Engineering S1 Civil Engineering

faculty of Economics and Business
S1 Management S1 Accountancy

Faculty of Letters and Educational Sciences
S1 English literature S1 English language education S1 Mathematics education S1 Sports Education

Clithon spinosum - Wikipedia

From Wikipedia, the free encyclopedia

Clithon spinosum

Clithon spinosum shells
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Family:	Neritidae
Genus:	Clithon
Species:	C. spinosum
Binomial name
*Clithon spinosum* (G. B. Sowerby I, 1825)
Synonyms^[1]
Neritina spinosa G. B. Sowerby I, 1825 (original combination) Clithon spinosus [sic] (incorrect gender ending) Neritina undata Lamarck, 1822 Neritina inermis Martens, 1878

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

Distribution

Distribution of Clithon spinosum includes the Indo-Pacific and it ranges from New Guinea^[2] and south-eastern Asia and eastern Asia to Marquesas.^[3] It also occurs in Japan,^[4] New Georgia,^[5] Fiji^[2] and Tahiti^[2] and in French Polynesia including the following Society Islands: Tahiti, Mo'orea, Raiatea, Huahine.^[3]

Description

There are always spines on its shell.^[2] Spines are long and thin and they are directed rearward.^[6] The width of the shell is 15–20 mm.^[7]

Ecology

Clithon spinosum is a dioecious (it has two separate sexes) and amphidromous snail.^[3] Adults live in freshwater and larvae are marine.^[3] Larvae are long-lived planktotrophs.^[3] Adults prefer boulders and cobbles over granules as a substrate.^[6]^[4] They were found mainly on bottom of rocks in aquaria and in situ.^[6] They are reported from altitude 0–10 m a.s.l.^[6] They can reach densities up to 57.0 ± 17.3 snails per square meter of a stream.^[6] Adults can survive 8 hours in seawater (longer exposure was not tested).^[6]

It is not used as food source by humans.^[3]

References

^ Bouchet, P.; Rosenberg, G. (2016). Clithon spinosum (G. B. Sowerby I, 1825). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=737522 on 2016-09-06
^ ^a ^b ^c ^d Haynes A. (1988). "Notes on the stream neritids (Gastropoda: Prosobranchia) of Oceania". Micronesica 21: 93–102. PDF.
^ ^a ^b ^c ^d ^e ^f Myers M. J., Meyer C. P. & Resh V. H. (2000). "Neritid and thiarid gastropods from French Polynesian streams: how reproduction (sexual, parthenogenetic) and dispersal (active, passive) affect population structure". Freshwater Biology 44(3): 535–545. doi:10.1046/j.1365-2427.2000.00599.x.
^ ^a ^b Blanco J. F. & Scatena F. N. (2007). "The spatial arrangement of Neritina virginea (Gastropoda: Neritidae) during upstream migration in a split‐channel reach". River Research and Applications 23(3): 235–245. PDF.
^ Haynes A. (1990). "The numbers of freshwater gastropods on Pacific islands and the theory of island biogeography". Malacologia 31: 237-248.
^ ^a ^b ^c ^d ^e ^f Liu H. T. T. & Resh V. H. (1997). "Abundance and microdistribution of freshwater gastropods in three streams of Moorea, French Polynesia". International Journal of Limnology 33(4): 235–244. doi:10.1051/limn/1997022.
^ Tryon G. W. (1888–1889) Manual of Conchology, structural and systematic, with illustrations of the species. Volume 10, 322 pp., 69 plates. page 63, plate 23, figure 6–7.

External links

Media related to Clithon spinosum at Wikimedia Commons

Categories:

Hidden categories: