Thylacodes aotearoicus Morton, 1951 Marine, Native - Endemic Raoul Island, Three Kings Islands, and north-eastern North Island as far south as Motuhora Island, from 0-33m |
Thylacodes zelandicus (Quoy & Gaimard, 1834) Diameter 10mm Marine, Native - Endemic, Often on Atrina shells Three Kings Islands, north-eastern North Island, and northern and south-western South Island, from 0-86m |