This species has dorsal and ventral keels but differs from the larger G. bicarinatus in the basal keel being weaker than the dorsal, and sometimes it is subobsolete. It also lacks the axial sculpture on the first whorl.
Glacidorbis catomus Ponder & Avern, 2000
Class Gastropoda
Infraclass Heterobranchia
Infrasubcohort Panpulmonata
Superorder Pyropulmonata
Order Amphibolida
Suborder Glacidorbina
Superfamily Glacidorboidea
Family Glacidorbidae
Genus Glacidorbis Iredale, 1943
Original name: Glacidorbis catomus Ponder & Avern, 2000. In Ponder, W. F. & Avern, G. J. (2000). The Glacidorbidae (Mollusca: Gastropoda: (Heterobranchia) of Australia. Records of the Australian Museum 52: 307–353.
Type locality: Monazite Ck, tributary of Surveyors Ck on Old Waterhouse Rd, NE of Scottsdale, Tasmania.
In small streams, springs and swamps, amongst moss, roots of water plants and similar substrates.
North-eastern Tasmania.
Ponder, W. F. (1986). Glacidorbidae (Glacidorbacea: Basommatophora), a new family and superfamily of operculate freshwater gastropods. Zoological Journal of the Linnean Society 87: 53-83.
Ponder, W. (2019). Glacidorbidae Ponder, 1986. Pp. 143-144 in C. Lydeard & Cummings, K. S. Freshwater Mollusks of the World: a Distribution Atlas. Baltimore, John Hopkins University Press.
Ponder, W. F. & Avern, G. J. (2000). The Glacidorbidae (Mollusca: Gastropoda: Heterobranchia) of Australia. Records of the Australian Museum 52: 307-353.
