Water mites (Acari: Hydrachnidia) from the hyporheic waters of the Selwyn River (New Zealand), with descriptions of nine new species

New records of water mite species (Acari: Hydrachnidia) from hyporheic waters of Selwyn River (South Island, New Zealand) are reported. One new genus, Canterburaturus Pesic & Smit n. gen. (Aturidae) and nine new species are described: Taintaturus selwynus Pesic & Smit n. sp., T. rostratus Pesic & Smit n. sp., T. waikirikiri Pesic & Smit n. sp., Colobaturus selwynus Pesic & Smit n. sp., Canterburaturus minutus Pesic & Smit n. sp., C. cooki Pesic & Smit n. sp.,C. novaeseelandicus Pesic & Smit n. sp., Abelaturus schwoerbeli Pesic & Smit n. sp., and Zelandalbia longipalpis Pesic & Smit n. sp. A first description of the male is given for Piotaturus bovalus Cook, 1983. A list is given of all known hyporheic species of New Zealand.