New camaenid land snails from the northeast Kimberley, Western Australia

Abstract

Seven new species and subspecies of camaenid land snails from northeastern Western Australia are described or discussed. The species all have very restricted ranges, and are found near the Northern Territory border in the area from both sides of the Cambridge Gulf in the north, to the hills lying southeast of Turkey Creek. The six described species and subspecies are: Amplirhagada cambridgensis from the Lyne River on the west side of Cambridge Gulf; Amplirhagada osmond’ from the Osmond Range-Palms Yard area southeast of Turkey Creek; Ordtrachia elegans from an isolated outlier of the Jeremiahi Hills northeast of Kununurra; Ningbingia australis elongata and Crisfilabrum rectum from the Ningbing Ranges north of Kununurra; and Mesodontrachia cockbumensis from the Cockburn Range southwest of Wyndham. Another probable new species of Cristilabrum from the Ningbing Ranges currently is represented by very limited material. It is not described at this time, but is illustrated for future-reference.