Isidorella

Isidorella is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.

Isidorella
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Planorboidea
Family:
Planorbidae
Genus:
Isidorella

Tate, 1896[1]

All species within family Planorbidae have sinistral shells.

Species of Isidorella may appear to be very similar species of Glyptophysa. However, Isidorella may differentiated by their lack of a stylet and an accessory structure. Isidorella also have a two-lobed penis, unlike Glyptophysa.[2]

Distribution

This genus is endemic to mainland Australia.[3]

Species

Species within this genus include:

  • Isidorella bradshawi Iredale, 1943
  • Isidorella egregia (Preston, 1906)
  • Isidorella ferruginea (Adams and Angas, 1864)
  • Isidorella hainesii (Tryon, 1866)
  • Isidorella newcombi (A. Adams & Angas, 1864) - type species[3]

Walker (1988) considered all examined specimens from Australia from this genus as Isidorella newcombi sensu lato.[3]

Ecology

Isidorella snails are grazers-scrapers and are capable of aestivation.[2] Isidorella may be found in ponds, billabongs, swamps, and sluggish streams and rivers.

References
  1. Tate R. (1896). Mollusca. pp. 181-226. In: Spencer W. B. (ed.). Report on the Work of the Horn Expedition to Central Australia, Pt 2 Zoology, 212. London & Melbourne : Melville, Mullen & Slade. (also in volume 1: page 22 and 65.)
  2. "Isidorella - fact sheet". keys.lucidcentral.org. Retrieved 2020-03-10.
  3. Walker J. C. (1988). "Classification of Australian buliniform planorbids (Mollusca: Pulmonata)". Records of the Australian Museum 40: 61-89. PDF. doi:10.3853/j.0067-1975.40.1988.151
  • Distribution map: map
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