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Gabbia fontana Ponder, 2003

Diagnostic features

The shell of G. fontana lacks distinctive sculpture, and is thus superficially similar to the species resembling G. vertiginosa (including G. iredalei and G. campicola). However, it differs from all these in being distinctly umbilicate, and in the central teeth of the radula having only two pairs of cusps on their lateral faces, the inner-most being moderately large, the outer pair being minute. G. fontana is also unusual in, when pigmented (the usual condition), the mantle roof is solid black rather than mottled.

Classification

Gabbia fontana Ponder, 2003

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha 

Superfamily Truncatelloidea

Family Bithyniidae

Genus Gabbia Tryon, 1865

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

Type locality: Big Spring, about 3 km southeast of Edgbaston HS, approximately 31 km northeast of Aramac, Queensland.

Biology and ecology

This species lives in shallow water on the edges of outflows, or along the damp edges of artesian springs. It can be very abundant.

Distribution

This species appears to be restricted to artesian springs on Edgbaston Station near Aramac, western Queensland.

Further reading

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