Margarya melanioides

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Margarya melanioides
Margarya melanoides 001.jpg
Apertural view of a shell of Margarya melanioides.
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
clade Caenogastropoda
informal group Architaenioglossa
Superfamily:
Family:
Genus:
Species:
M. melanioides
Binomial name
Margarya melanioides
Nevill, 1877 [2]
Synonyms [1] [3] [4]

Margarya melanoides (spelling error) [1]
Margarya melanioides carinata Neumayr
Margarya melanoides delavayi Mabille
Vivipara delavayi Mabille, 1886 [5]
Paludina margeriana Anderson, 1878
Vivipara (Tulotoma) margeriana Neumayr,1883
Vivipara (Tulotoma) margeriana var. tuberculata Neumayr,1883

Contents

Margarya melanioides is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

Margarya melanioides is the type species of the genus Margarya. [2] [6]

Distribution

The distribution of Margarya melanioides includes Dian Lake, Erhai Lake, Jianhu Lake, Xihu Lake, and Cibi Lake in Yunnan Province, China. [1] [4] Former records in Daduitai Lake and Xingyun Lake are considered as a result of the mix-up of species name. [4]

An average population density was 36 individuals per square meter in Dianchi Lake in 1940s, [7] 0.7 individuals per square meter in 1990s [7] and 0.068 individuals per square meter in Dianchi Lake in 2012. [7]

According to the population ecology research by Song et al. (2013), [7] the population of will collapse in the Dian Lake in 2015. [7]

Description

The width of the shell is up to 64.3 mm. The height of the shell is up to 94.7 mm. [4]

Shu et al. (2010) provided details about the shell and about the radula. [3]

The diploid chromosome number of Margarya melanioides is 2n=18. [3] [8]

Ecology

Margarya melanioides is a dioecious species. [7] Females are ovoviviparous and one female lay 5-6 eggs per year. [7] The newborn shell is about 8 mm in height. [7] The snail will reach maturity in one year in a shell height about 30 mm. [7]

The lifespan is 3–4 years. [7]

Human use

This species is extensively harvested as a human food source, but harvesting is one of its threats. [7]

Related Research Articles

Dian Lake

Dianchi Lake, also known as Lake Dian and Kunming Lake, is a large lake located on the Yunnan-Guizhou Plateau close to Kunming, Yunnan, China. Its nickname is the "Sparkling Pearl Embedded in a Highland" and it was the model for the Kunming Lake in the Summer Palace in Beijing. Its name is the source of Yunnan's Chinese abbreviation 滇.

Viviparidae

Viviparidae, sometimes known as the river snails or mystery snails, are a family of large operculate freshwater snails, aquatic gastropod mollusks.

Chinese mystery snail

The Chinese mystery snail, black snail, or trapdoor snail, is a large freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae. The Japanese variety of this species is black and usually a dark green, moss-like alga covers the shell.

<i>Cipangopaludina</i>

Cipangopaludina is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae.

Amnicolidae

Amnicolidae is a family of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the superfamily Rissooidea.

Fuxian Lake

Fuxian Lake stretches out through Chengjiang, Jiangchuan and Huaning Counties in Yunnan Province, spanning an area of 212 square kilometers. The lake is ranked third-largest in Yunnan, after Dian Lake and Erhai Lake. Also the deepest lake in Yunnan, it is 155 meters deep at its greatest depth. It is also the third-deepest fresh water lake in China, after Tianchi and Kanas Lake.

<i>Margarya monodi</i>

Margarya monodi is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

<i>Margarya</i>

Margarya is a genus of large operculate freshwater snails, aquatic gastropod mollusks in the family Viviparidae.

<i>Margarya mansuyi</i>

Margarya mansuyi is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

<i>Margarya bicostata</i>

Margarya bicostata is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

<i>Tchangmargarya yangtsunghaiensis</i>

Tchangmargarya yangtsunghaiensis is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

Tchangmargarya is a genus of large operculate freshwater snails, aquatic gastropod mollusks in the family Viviparidae.

<i>Anularya</i>

Anularya is a genus of large operculate freshwater snails, aquatic gastropod mollusks in the family Viviparidae.

Tchangmargarya multilabiata is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

<i>Margarya francheti</i>

Margarya francheti is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

Margarya oxytropoides is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

<i>Sinotaia aeruginosa</i>

Sinotaia aeruginosa is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Viviparidae. It is widely distributed and common species in China and in northern Vietnam inhabiting various shallow freshwater habitats, where it can reach high densities. It is a keystone species in its habitat and can significantly affect water quality and phytoplankton communities. It is commonly used in Chinese cuisine.

<i>Cipangopaludina cathayensis</i>

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.

<i>Angulyagra polyzonata</i>

Angulyagra polyzonata is a species of a freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Viviparidae.

References

  1. 1 2 3 4 Aldridge D., Di L., Jiang Y. & McIvor A. (2009). "Margarya melanoides" (sic!). In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 22 February 2014.
  2. 1 2 Nevill G. (1877). "List of the Mollusca brought back by Dr. Anderson from Yunnan and Upper Burma, with descriptions of new species". Journal of the Asiatic Society of Bengal 46(2): 14-41. page 30.
  3. 1 2 3 Shu, F.; Köhler, F.; Wang, H. (2010). "On the shell and radular morphology of two endangered species of the genus Margarya Nevill, 1877 (Gastropoda: Viviparidae) from lakes of the Yunnan Plateau, Southwest China". Molluscan Research. 30 (1): 17–24.
  4. 1 2 3 4 Zhang, L. J.; Chen, S. C.; Yang, L. T.; Jin, L.; Köhler, F. (2015). "Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa". Zoological Journal of the Linnean Society . 174 (4): 760–800. doi: 10.1111/zoj.12260 .
  5. Mabille J. (1886). "Déscription de vivipares nouvelles du Lac Ta-Ti". Bulletins de la Société malacologique de France 3: 65–76. page 66, plate II, figs 1a, 1b.
  6. Du, L.; Yang, J.; von Rintelen, T.; Chen, X.; Aldridge, D. (2013). "Molecular phylogenetic evidence that the Chinese viviparid genus Margarya (Gastropoda: Viviparidae) is polyphyletic". Chinese Science Bulletin . 58 (18): 2154–2162. doi: 10.1007/s11434-012-5632-y .
  7. 1 2 3 4 5 6 7 8 9 10 11 Song, Zhuoyan; Zhang, Junqian; Jiang, Xiaoming; Wang, Chouming; Xie, Zhicai (2013). "Population structure of an endemic gastropod in Chinese plateau lakes: evidence for population decline". Freshwater Science . 32 (2): 450–461. doi:10.1899/12-099.1.
  8. Chen Y. X., Zhang N. G., Zhang W. & Li J. K. (1996). "The karyotype study of Margarya yaungtsunghaiensis and M. melanioides (Viviparidae)". Zoological Research17: 94-96. (In Chinese with English abstract)