Margarya catayensis
Species of gastropod
From Wikipedia, the free encyclopedia
Margarya catayensis is a species of large, freshwater snail with an operculum and a gill, an aquatic gastropod mollusk in the family Viviparidae, the river snails.
| Margarya catayensis | |
|---|---|
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| Shell and operculum from type description. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Family: | Viviparidae |
| Genus: | Margarya |
| Species: | M. catayensis |
| Binomial name | |
| Margarya catayensis | |
| Synonyms | |
|
Paludina catayensis Heude, 1890 (orthographic error) | |
Taxonomy
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.
Distribution
Description
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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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]
Ecology
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]
Human use
| Nutritional value per 100 g (3.5 oz) | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3.83 g[9] | |||||||||||||||||||||||||||||||||||||||||
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| 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] | ||||||||||||||||||||||||||||||||||||||||
| †Percentages estimated using US recommendations for adults.[10] | |||||||||||||||||||||||||||||||||||||||||
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]
