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Fluviopupa ramsayi royana (Iredale, 1944)

Diagnostic features

Fluviopupa gracilis can be separated from F. ramsayi by its elongate-pupoid shell, and the distal end of the penis is longer (not shorter) than the accessory lobe. In F. ramsayi ramsayi, the shell is larger than that of F. ramsayi royana and the inner lip is more closely applied to the parietal wall.


Fluviopupa ramsayi royana (Iredale, 1944)

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha 

Superfamily Truncatelloidea

Family Tateidae

Genus Fluviopupa Pilsbry, 1911

Original name: Fluviorissoina royana Iredale, 1944. Iredale, T. (1944) The land Mollusca of Lord Howe Island. Australian Zoologist 10: 299-334.

Type locality: "Creeks of the Old Settlement" Lord Howe Island. Ponder (1982) recorded this locality as an error and subsequently designated Soldier (or Big) Creek as the type locality.

Biology and ecology

In small streams and seepages under leaves and stones and on moss and rock surfaces.


Lord Howe Island.In streams flowing east and west of Smoking Tree Ridge, Intermediate Hill and North Hummock.


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

Iredale, T. (1944). The land Mollusca of Lord Howe Island. Australian  Zoologist 10: 299-334, pls XVII-XX.

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