Zeacumantus lutulentus (Kiener, 1841) Height 40mm, Width 12mm Marine, Endemic, Distinct strong axial ribs North Island and northern part of South Island. Common on mid-tidal mud flats ACE. |
Zeacumantus subcarinatus (G.B. Sowerby II, 1855) Height 19mm, Width 7mm Marine, Endemic North Island and northern part of South Island, and Chatham Islands. Introduced to New South Wales, Australia & now established ACFME. |