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Fluviopupa gracilis kingstoni Ponder, 1982

Diagnostic features

Fluviopupa gracilis is separated from F. ramsayi in having an elongate-pupoid shell and  the distal end of the penis is longer (not shorter) than the accessory lobe. This subspecies is the largest of the F. gracilis complex and has 5 whorls. As in F. gracilis erskinensis the mantle is black and the head-foot has some pigmentation.

Classification

Fluviopupa gracilis kingstoni Ponder, 1982

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha 

Superfamily Truncatelloidea

Family Tateidae

Genus Fluviopupa Pilsbry, 1911

Original name: Fluviopupa gracilis kingstoni Ponder, 1982. Ponder, W.F. (1982) Hydrobiidae of Lord Howe Island (Mollusca: Gastropoda: Prosobranchia). Australian Journal of Marine and Freshwater Research 33: 89-159.

Type locality: Stream behind Golf Course (to SSE of club building and just over fence in reserve). Southern end of Big Slope, in creek on southern side of main point on slope.

Biology and ecology

In small streams on stones.

Distribution

Lord Howe Island. Southern end of Big Slope on eastern side of Mt. Gower.

Notes

The Lord Howe Island Fluviopupa species are rather similar in appearance but the different taxa are  in distinct geographical locations on Lord Howe Island.

Further reading

Ponder, W. F. (1982). Hydrobiidae of Lord Howe Island (Mollusca: Gastropoda: Prosobranchia). Australian Journal of Marine and Freshwater Research 33: 89-159.