Erhaia

Erhaia is a genus of small to minute[3] freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Amnicolidae.

Erhaia
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Rissooidea
Family:
Amnicolidae
Subfamily:
Amnicolinae[1]
Genus:
Erhaia

Davis & Kuo in Davis, Kuo, Hoagland, Chen, Yang & Chen, 1985[2]
Diversity[3]
7 species (not up to date, see newer references)

Erhaia is the type genus of the tribe Erhaiini, which is now a synonym of the subfamily Amnicolinae.[1]

Erhaia (also within the tribe Erhaiini) was originally described as a genus within the Pomatiopsidae in 1985,[2] but Wilke et al. (2000, 2001) moved it to the Amnicolidae.[4][5]

Distribution

The distribution of Erhaia includes southern China and India.[6] The center of biodiversity of Erhaia in China is located in the provinces of Hunan, Hubei and Sichuan.[3] Distribution also includes Fujian Province.[3] There is also scattered occurrences of Erhaia in Yunnan Province.[3] These snails live in the Yangtze River drainage and in the Mekong River drainage (1 species).[6]

Description

The length of the shell of this species is up to 3.9 mm.[6]

Species

Species within the genus Erhaia include:

  • Erhaia daliensis Davis & Kuo, 1985[2][6]
  • Erhaia gongjianguoi (Kang, 1983)[6]
  • Erhaia hubiensis (Liu, Zhang & Wang, 1983)[6]
  • Erhaia jianouensis (Liu & Zhang, 1979)[3][6]
  • Erhaia kunmingensis Davis & Kuo, 1985[2][6]
  • Erhaia lii (Kang)[6]
  • Erhaia nainitalensis Davis & Rao, 1997[6]
  • Erhaia robusta (Kang, 1986)[6]
  • Erhaia sheminensis[6]
  • Erhaia wangchuki Gittenberger, Sherub & Stelbrink, 2017
  • Erhaia wantanensis[6]
  • Erhaia wufengensis[6]

Synonyms:

  • Erhaia chinensis Davis et al. 1985 and Erhaia chinensis Davis & Kang, 1995[3] are synonyms of Chencuia chinensis Liu & Zhang, 1979[6]

Ecology

Erhaia lives in streams in mountainous areas.[6]

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gollark: The clock is there because clocks can be used in the manipulator, and they have a convenient method to compute the current angle of the currently-relevant celestial body.
gollark: Well, that's fine, it doesn't use that anyway, how would that even make sense.
gollark: Do you know about relativistic chromatic aberration?
gollark: I feel like that should be obvious.

References
  1. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  2. Davis G. M., Kuo Y.-H. Hoagland K. E., Chen P.-L., Yang H.-M. & Chen D.-J. (1985). "Erhaia, a new genus and new species of Pomatiopsidae from China (Gastropoda: Rissoacea)". Proceedings of the Academy of Natural Sciences of Philadelphia 137: 48-78. page 66. JSTOR 4064860.
  3. Davis G. M. & Kang Z. B. (1995). "Advances in the Systematics of Erhaia (Gastropoda: Pomatiopsidae) from the People's Republic of China". Proceedings of the Academy of Natural Sciences of Philadelphia 146: 391-427. JSTOR.
  4. Wilke T., Davis G. M., Gong X. & Liu H.-X. (2000). "Erhaia (Gastropoda: Rissooidea): phylogenetic relationships and the question of Paragonimus coevolution in Asia". American Journal of Tropical Medicine and Hygiene 62(4): 453-459. abstract, PDF.
  5. Wilke T., Davis G. M., Falniowski A., Giusti F., Bodon M. & Szarowska M. (2001). "Molecular systematics of Hydrobiidae (Mollusca: Gastropoda: Rissooidea): testing monophyly and phylogenetic relationships". Proceedings of the Academy of Natural Sciences of Philadelphia 151: 1-21Wilke, Thomas (2001). "Molecular systematics of Hydrobiidae (Mollusca: Gastropoda: Rissooidea): testing monophyly and phylogenetic relationships". Proceedings of the Academy of Natural Sciences of Philadelphia. 151 (1): 1–21. doi:10.1635/0097-3157(2001)151[0001:MSOHMG]2.0.CO;2. JSTOR.
  6. Davis G. M. & Rao S. (1997). "Discovery of Erhaia (Gastropoda: Pomatiopsidae) in northern India with description of a new genus of Erhaiini from China". Proceedings of the Academy of Natural Sciences of Philadelphia 48: 273-299. JSTOR.
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