Delouagapia

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Delouagapia is a small genus of land snails in the Rhytididae family, and it is endemic to New Zealand. It has two species: Delouagapia cordelia, living in forested areas of Northland, and Delouagapia tasmani, found on the Three Kings Islands.

The genus was first described by A. W. B. Powell in 1952 as a subgenus of Delos. It was briefly merged back into Delos in 1959, but in 1977 Frank Climo restored Delouagapia as its own genus. It remained monotypic (one species) until 1999, when D. tasmani was added.

Delouagapia snails have more radular teeth per row than the related genus Delos, and their shells have a greenish background with brown markings. Delouagapia cordelia is slate-grey with a white sole, and it lives in trees in Northland forests, often among Astelia epiphytes on Vitex lucens. It has two deep grooves on its back. Delouagapia tasmani lives in leaf litter under stones in a Meryta sinclairii–dominated forest on the North East Island of the Three Kings Islands.

Distribution: D. cordelia is known from Northland, with an early report from Titirangi (Auckland) but no recent observations. D. tasmani is restricted to the Three Kings Islands.