The low rounded spire, pronounced columella fold at very bottom of aperture and small size distinguish this species from typical species of Glyptophysa.
Oppletora jukesii (H.Adams, 1861)
Common name: Jukes's pouch snail.
Class Gastropoda
Infraclass Heterobranchia
Megaorder Hygrophila
Order Lymnaeida
Superfamily Planorboidea
Family Planorbidae
Subfamily: Miratestinae
Genus Oppletora Iredale, 1943 (Type species: Physopsis jukesii H. Adams, 1861). Oppletora Iredale & Whitley, 1938 nom. nud.
Original name: Physopsis jukesii H. Adams, 1861. In Adams, H. (1861). Descriptions of a new genus and some new species of the shells from the collection of Hugh Cuming, Esq. Proceedings of the Zoological Society of London 1861: 143-145.
Type locality: Port Essington, Northern Territory.
Oppletora was treated as a subgenus of Glyptophysa following Walker (1988) in earlier versions of this key.
On water weeds, wood, and similar substrates, in ponds, billabongs, swamps, and sluggish streams and rivers. Feeds on algae and detritus. Egg mass typically a bean(kidney)-shaped jelly strip containing many small eggs. Development direct.
Gulf of Carpentaria and Timor Sea divisions, Northern Territory and Western Australia.
Oppletora differs from the otherwise similar genus Isidorella in the penial apparatus having a penial stylet and an accessory flagellum (which are also present in Glyptophysa). Isidorella lacks a stylet and an accessory structure but the penis has two lobes.
Albrecht, C., Stelbrink, B. & Clewing, C. (2019). Planorbidae Rafinesque, 1815. Pp. 181-186 in C. Lydeard & Cummings, K. S. Freshwater Mollusks of the World: a Distribution Atlas. Baltimore, John Hopkins University Press.
Baker, F. C. (1945). The molluscan family Planorbidae. Urbana USA, University of Illinois Press.
Beesley, P. L., Ross, G. J. B. & Wells, A., Eds. (1998). Mollusca: The Southern Synthesis. Parts A & B. Melbourne, CSIRO Publishing.
Hubendick, B. (1955). Phylogeny of the Planorbidae. Transactions of the Zoological Society of London 28: 453-542.
Smith, B. J. (1992). Non-marine Mollusca. Pp. i-xii, 1-408 in W. W. K. Houston. Zoological Catalogue of Australia, 8. Canberra, Australian Government Publishing Service.
Walker, J. C. (1988). Classification of Australian buliniform planorbids (Mollusca: Pulmonata). Records of the Australian Museum 40: 61-89.
Willan, E. C. & Kessner, V. (2021). A conspectus of the freshwater molluscs of the Daly River catchment, Northern Territory. Northern Territory Naturalist 30: 108-137.
