Arcuatula senhousia Benson, 1842 Length 36mm, Height 16mm Asian Mussel, Marine, Non-indigenous Worldwide. North-eastern North Island, New Zealand. Clustered in dense masses in muddy harbours, from 0-6m |
Xenostrobus neozelanicus (Iredale, 1915) Length 34mm, Height 16mm Little Black Mussel, Marine, Native - Endemic North, South, Stewart, Snares and Auckland Islands. On open coasts at low tide, from 0-42m |
Xenostrobus securis (Lamarck, 1819) Length 35mm, Height 17mm Marine Northern and south-western North Island, northern and south-western South Island and Chatham Islands. Also Western Australia to Queensland. Estuarine areas, from 0m |