Margarya

Last updated

Margarya
Margarya melanoides 001.jpg
Shell of Margarya melanioides, the type species of Margarya
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Architaenioglossa
Family: Viviparidae
Subfamily: Bellamyinae
Genus: Margarya
Nevill, 1877 [1]
Diversity
8 species [2]
Synonyms [2]
  • Margarya (Mabillemargarya)He, 2013
  • Margarya (Margarya)G. Nevill, 1877

Margarya is a genus of large operculate freshwater snails, aquatic gastropod molluscs in the family Viviparidae. [2] [3]

Contents

Taxonomy

The genus Margarya was described by Nevill (1877) based on shells of the type species collected by A.R. Margary from Lake Erhai, the type locality of Margarya melanioides . [1] Based on shell and radular morphology, Tchang & Tsi (1949) revised this genus for the first time and recognized seven distinct species. [4] He created two subgenera of Margarya , viz Tchangmargarya and Mabillemargarya. [5] The first molecular phylogeny showed that the genus Margarya is polyphyletic and divided into three distinct clades. [6] Combining study of comparative morphology and molecular phylogeny, Zhang et al. revised the systematics of Margarya and recognized eight genuine extant species. However, only four species were found belonging to Margarya s. str., the rest species belonging to distinct genus Tchangmargarya or Anularya . [2]

Distribution

This genus appear to be endemic to Dian Lake, Erhai Lake, Cibi Lake, Jianhu Lake, Xihu Lake, and Lugu Lake in Yunnan Province in the China. [2]

Species

There are 4 extant species and 4 fossil species of Margarya s. str. [2] Margarya bicostata and Margarya mansuyi are transferred to Anularya . Margarya yangtsunghaiensis is transferred to Tchangmargarya . Species within the genus Margarya include 8 species: [2]

Species brought into synonymy: [2]

Cladogram

The cladogram based on sequences of mitochondrial 16S ribosomal RNA and cytochrome-c oxidase I (COI), and nuclear ITS2 genes showing the phylogenic relationships of the genus Margarya indicates that Margarya is polyphyletic. [2] [6] Margarya as traditionally delimited decayed into three distinct clades. The sister lineages of two of these clades are representatives from different viviparid genera, which are widely distributed in East and Southeast Asian rivers and lakes. These predominantly riparian viviparids also differ markedly in their shell morphology. Herein only genus-level phylogenic relationship is given, whereas relationship between lower taxonomic units deserve further study.

Margarya and related Viviparidae

Related Research Articles

<span class="mw-page-title-main">Viviparidae</span> Family of gastropods

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

<i>Cipangopaludina</i> Genus of gastropods

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

<i>Cyclophorus</i> (gastropod) Genus of gastropods

Cyclophorus is a genus of operculate land snails, terrestrial gastropod mollusks in the family Cyclophoridae.

<span class="mw-page-title-main">Plectopylidae</span> Family of gastropods

Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea.

<i>Margarya monodi</i> Species of gastropod

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

<i>Semisulcospira</i> Genus of gastropods

Semisulcospira is a genus of freshwater snails with an operculum, an aquatic gastropod molluscs in the family Semisulcospiridae.

<i>Margarya mansuyi</i> Species of gastropod

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

<i>Tchangmargarya yangtsunghaiensis</i> Species of gastropod

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

<i>Margarya melanioides</i> Species of gastropod

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

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

<i>Anularya</i> Genus of gastropods

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

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

<i>Margarya francheti</i> Species of gastropod

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

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

<i>Sinotaia</i> Genus of gastropods

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

<i>Camaena</i> Genus of gastropods

Camaena is a genus of air-breathing, Asian land snails in the family Camaenidae.

<i>Ganesella</i> Genus of gastropods

Ganesella is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Camaeninae of the family Camaenidae.

<i>Metalycaeus</i> Genus of gastropods

Metalycaeus is a genus of tropical land snails with an operculum, terrestrial gastropod mollusks in the family Alycaeidae.

<i>Trichochloritis</i> Genus of gastropods

Trichochloritis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Camaeninae of the family Camaenidae.

References

  1. 1 2 3 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.
  2. 1 2 3 4 5 6 7 8 9 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 .
  3. Bouchet, P. (2014). Margarya G. Nevill, 1877. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=758767 on 2014-12-10
  4. Tchang, X.; Tsi, Z. Y. (1949). "A revision of the genus Margarya of the family Viviparidae". Contributions from the Institute of Zoology, National Academy of Peiping. 5: 1–26.
  5. He, J (2013). "A conchological review of Margarya-complex (Gastropoda: Viviparidae)". Shell Discoveries . 2: 2–15.
  6. 1 2 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. Bibcode:2013ChSBu..58.2154D. doi: 10.1007/s11434-012-5632-y .
  7. Mabille, J (1886). "Déscription de vivipares nouvelles du Lac Ta-li". Bulletins de la Société malacologique de France. 3: 65–76.
  8. Dautzenberg; Fischer (1905). "Liste de mollusques récoltés par M. H. Mansuy en Indo-Chine et au Yunnan et description d′espèces nouvelles". Journal de Conchyliologie. 53: 343–471.
  9. Heude P. M. (1882–1890). Notes sur les mollusques terrestres de la Vallée du Fleuve Bleu. Mémoires concernant l′histoire naturelle de l′Empire chinois1: 1–188.
  10. 1 2 Li (1987). "Margarya and Paraprosothenia (Gastropoda) from the Sheshan formation in Lijiang Basin Western Yunnan". Professional Papers of Stratigraphy and Palaeontology. 22: 159–166.
  11. Huang, B.Y.; Wang, H. J.; Zhang, L. (1986). "On the mollusk of late Tertiary to Quaternary from Can-I in Kunming, Yunnan". Transactions of the Chinese Society of Malacology. 2: 128–135.
  12. Tian, Y.; Fürsich, F. T.; Schneider (2013). "Giant Viviparidae(Gastropoda: Architaenioglossa) from the early Oligocene of the Nanning basin (Guangxi, SE China)". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 267: 75–87. doi:10.1127/0077-7749/2012/0298.