Notopala

Notopala
Temporal range: Aptian-Recent[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda

informal group Architaenioglossa

Superfamily: Viviparoidea
Family: Viviparidae
Genus: Notopala
Cotton, 1935[2]

Notopala is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks in the family Viviparidae, the river snails or mystery snails.

Description

The shell is dextral and globose-conic.[3] The shell has up to five whorls.[3] The aperture is subovate.[3] The operculum is corneous.[3]

Species

Species within the genus Notopala include:

The type species of the genus Notopala is Paludina hanleyi von Frauenfeld, 1864.[1]

References

  1. 1 2 3 4 5 Kear B. P., Hamilton-Bruce R. J., Smith B. J. & Gowlett-Holmes K. L. (2003). "Reassessment of Australia's oldest freshwater snail, Viviparus (?) albascopularis Etheridge, 1902 (Mollusca : Gastropoda : Viviparidae), from the Lower Cretaceous (Aptian, Wallumbilla Formation) of White Cliffs, New South Wales". Molluscan Research 23(2): 149-158. doi:10.1071/MR03003, PDF.
  2. Cotton B. C. (1935). "Recent Australian Viviparidae and a fossil species". Records of the South Australian Museum 5: 339-344. page 339.
  3. 1 2 3 4 5 6 Hamilton-Bruce R. J., Smith B. J. & Gowlett-Holmes K. L. (2002). "Descriptions of a new genus and two new species of viviparid snails (Mollusca: Gastropoda: Viviparidae) from the Early Cretaceous (middle-late Albian) Griman Creek Formation of Lightning Ridge, northern New South Wales". Records of the South Australian Museum 35: 193–203. PDF
  4. Etheridge R. Jr. (1902). "A monograph of the Cretaceous invertebrate fauna of New South Wales". Memoirs of the Geological Survey of New South Wales 11: 1-98.
  5. 1 2 3 River Snail (Notopala sublineata). accessed 26 September 2010
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