Notopala

Notopala Temporal range: Aptian-Recent[1] PreЄ Є O S D C P T J K Pg N
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:

• † Notopala albascopularis (Etheridge, 1902) - synonym: Viviparus (?) albascopularis Etheridge, 1902^[1][4] - from Aptian, Wallumbilla Formation, New South Wales^[1]
• Notopala essiengionensis (Frauenfeld, 1862)^[3]
• Notopala sublineata Conrad, 1850
  • Notopala sublineata sublineata Conrad, 1850^[5]
  • Notopala sublineata alisoni (Brazier, 1979)^[5]
  • Notopala sublineata hanleyi (Frauenfeld, 1864)^[5] / Notopala hanleyi
• † Notopala wanjacalda Cotton, 1935 - from upper Pleistocene near Sunnyside, South Australia^[1]
• Notopala waterhousii (Adams & Angus, 1864)^[3]

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

References

1. ^ ^{a b c d e} 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. ^ ^{a b c d e f} 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. ^ ^{a b c} River Snail (Notopala sublineata). accessed 26 September 2010

External links

• http://www.environment.gov.au/biodiversity/abrs/online-resources/fauna/afd/taxa/Notopala