Rhytida hadfieldi A. W. B. Powell, 1949 (junior subjective synonym) Rhytida oconnori is a species of medium-sized, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

[2][3] It is found in a few places in the north of the South Island in New Zealand.

[4] The preferred habitat for Rhytididae in forests is under fern or leaf litter or in damp places under rocks.

[4] Rhytida oconnori is found only at the top of the South Island in the Abel Tasman National Park south east of Tākaka, and at the Punipaua Creek near the Paturau River west of Collingwood in Golden Bay.

[3][5][6] The song thrush (Turdus philomelos), an introduced species to New Zealand, is a predator of Rhytididae.