Cipangopaludina cathayensis | |
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Shell and operculum from type description. | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Architaenioglossa |
Family: | Viviparidae |
Genus: | Cipangopaludina |
Species: | C. cathayensis
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Binomial name | |
Cipangopaludina cathayensis | |
Synonyms | |
Paludina catayensis Heude, 1890 (orthographic error) |
Cipangopaludina cathayensis is a species of large, freshwater snail with an operculum and a gill, an aquatic gastropod mollusk in the family Viviparidae, the river snails.
This species was described under the name Paludina catayensis by French Jesuit Pierre Marie Heude in 1890.[2] Later reviewers treated the specific name catayensis as an orthographic error and changed the specific name to cathayensis.[3] There is high intraspecific variation of shells within the genus Cipangopaludina,[3] so Wilhelm Kobelt (1909)[4] considered this taxon as a subspecies of Vivipara chinensis. Later authors Yen (1943), Liu (1991) and Lu et al (2014)[3] considered this taxon as a separate species.
The species has a wide distribution throughout central and southeastern China, occurring in East China (provinces Shandong, Anhui, Jiangsu, Zhejiang, Jiangxi), Northeast China (Jilin), North China (Shanxi, Hebei) and Central China (Henan, Hubei, Hunan).[1]
The width of the shell is 24.3–50.5 mm.[3] The height of the shell is 27.7–58.5 mm.[3] The shell has from five to six whorls.[3] The apex is pointed.[3]
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C. cathayensis has gills and an operculum. The kidney is triple-shaped.[3] The diploid chromosome number of C. cathayensis is 2n=18.[5] The complete mitochondrial genome of Cipangopaludina cathayensis is known since 2014.[6] Its length is 17,157 bp.[6]
It inhabits lakes, reservoirs and ponds, as well as grassy paddies, where it clings to aquatic plants.[1]
Each gravid female carries more than 60 embryos inside her.[3] The shell of embryo has three whorls.[3]
The pollutant removal in constructed wetlands with these snails was better, than in constructed wetlands without them.[7]
Parasites of Cipangopaludina cathayensis include trematode Aspidogaster conchicola.[8]
Nutritional value per 100 g (3.5 oz) | |
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3.83 g[9] | |
Threonine | 2.952 g[9] |
Isoleucine | 2.026 g |
Leucine | 5.198 g |
Lysine | 3.700 g |
Methionine | 1.145 g |
Cystine | 1.233 g |
Phenylalanine | 1.894 g |
Tyrosine | 2.731 g |
Valine | 1.894 g |
Arginine | 4.537 g |
Histidine | 1.057 g |
Alanine | 3.524 g |
Aspartic acid | 6.211 g |
Glutamic acid | 9.868 g |
Glycine | 3.340 g |
Proline | 1.850 g |
Serine | 2.996 g |
Other constituents | Quantity |
Water | 77.30 g[9] |
Crude fat | 0.60 g[9] |
Crude protein | 13.72 g[9] |
Crude ash | 4.55 g[9] |
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†Percentages are roughly approximated using US recommendations for adults. |
It is used as human food and in the preparation of medicines, and as feed for fish, poultry and livestock.[1] It is also used as a fertilizer.[1]