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Gabbia kessneri Ponder, 2003

Diagnostic features

Differs from all other Australian species, other than G. beecheyi, in its large, greenish, smooth, shining, ovate shell with convex spire. Gabbia kessneri however differs from G. beecheyi, in its somewhat larger size, and an aperture that is more rounded anteriorly.

Classification

Gabbia kessneri Ponder, 2003

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha 

Superfamily Truncatelloidea

Family Bithyniidae

Genus Gabbia Tryon, 1865

Original nameGabbia kessneri Ponder, 2003. Ponder, W.F. (2003) Monograph of the Australian Bithyniidae (Caenogastropoda: Rissooidea). Zootaxa 230: 1-126.

Type locality: Heathers Lagoons, west of Adelaide River township, Northern Territory.

Biology and ecology

This species occurs in billabongs and other large semi-permanent water bodies, mainly on submerged macrophytes.

Distribution

Western side of Arnhem Land, Northern Territory. Additionally, one sample lot from Melville Island is only tentatively attributed to this species.

Further reading

Ponder, W. F. (2003). Monograph of the Australian Bithyniidae (Caenogastropoda: Rissooidea).  Zootaxa 230: 1-126.