Georissa

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Georissa
Georissa shikokuensis 001.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Neritimorpha
Order: Cycloneritida
Family: Hydrocenidae
Genus: Georissa
Blanford, 1864[1]

Georissa is a genus of minute land snails, terrestrial gastropod mollusks in the family Hydrocenidae. Although the species are best known for living on the surface of limestone rocks, they are often also found in and on the vegetation and on non-calcareous rocks. One species, Georissa filiasaulae, is . It is only known from two caves in the Sepulut area of Sabah, Malaysian Borneo, where its above-ground sister species, Georissa saulae, inhabits the rocks outside of the cave, and is connected to the cave snail via narrow zones of hybridization at the cave entrances. Possibly, G. filiasaulae has evolved without ever having been fully separated from its ancestor, a process known as .[2][3]

Species[]

Species within the genus Georissa include:

  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • E. A. Smith, 1895
  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • Georissa biangulata Quadras & Möllendorff, 1894
  • E. A. Smith, 1895
  • Georissa elegans Quadras & Möllendorff, 1894
  • E. A. Smith, 1895
  • Georissa filiasaulae Haase & Schilthuizen, 2007[5]
  • E.A. Smith, 1894
  • Thompson & Dance, 1983
  • Godwin-Austen, 1889
  • Pilsbry, 1900[6]
  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • Gredler, 1902
  • Georissa laevigata Quadras & Möllendorff, 1894
  • Georissa laseroni (Iredale, 1937)
  • Godwin-Austen & Neville, 1879
  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • Godwin-Austen, 1889
  • Vermeulen & Junau, 2007
  • Thompson & Dance 1983
  • (Benson, 1856) - type species of the genus Georissa[5]
  • Georissa rufula von Möllendorf, 1900
  • Georissa saulae (van Benthem-Jutting, 1966)
  • (van Benthem-Jutting, 1966)
  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • Amano, 1939
  • Khalik, Hendriks, Vermeulen & Schilthuizen, 2018[4]
  • E.A. Smith, 1894
  • Thompson & Dance, 1983
  • Godwin-Austen, 1889 (including Georissa hungerfordi)

References[]

  1. ^ Blanford W. T. (1864). "On the Classification of the Cyclostomacea of Eastern Asia". Annals and Magazine of Natural History (3)13: 441-465, page 463.
  2. ^ Schilthuizen M., Rutten E. J. M. & Haase M. (2012). "Small-scale genetic structuring in a tropical cave snail and admixture with its above-ground sister species". Biological Journal of the Linnean Society 105: 727-740. doi:10.1111/j.1095-8312.2011.01835.x
  3. ^ Schilthuizen M., Cabanban A. S. & Haase M. (2005). "Possible speciation with gene-flow in tropical cave snails". 43: 133-138. doi:10.1111/j.1439-0469.2004.00289.133–138.
  4. ^ a b c d e f Khalik, Mohd Zacaery; Hendriks, Kasper; Vermeulen, Jaap J.; Schilthuizen, Menno (9 July 2018). "A molecular and conchological dissection of the "scaly" Georissa of Malaysian Borneo (Gastropoda, Neritimorpha, Hydrocenidae)". ZooKeys. 773: 1–55. doi:10.3897/zookeys.773.24878.
  5. ^ a b Haase M. & Schilthuizen M. (2007). "A new Georissa (Gastropoda: Neritopsina: Hydrocenidae) from a limestone cave in Malaysian Borneo". Journal of Molluscan Studies 73(3): 215-221. doi:10.1093/mollus/eym020.
  6. ^ Noseworthy R. G., Lim N.-R. & Choi K.-S. (2007). "A Catalogue of the Mollusks of Jeju Island, South Korea". 23(1): 65-104. PDF.

External links[]

  • Media related to Georissa at Wikimedia Commons
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