Crassula aequilatera (Deshayes, 1854) Width 75mm, Height 55mm Diamond Surf Clam, Triangle Shell, Marine, Endemic North, South and Stewart Island. In shallow water off sandy beaches ACFE. |
Cyclomactra ovata (Gray, 1843) Width 80mm, Height 62mm Marine, Endemic North, South and Chatham Islands. Buried deeply in soft mud ACFME. |
Cyclomactra tristis (Reeve, 1854) Width 60mm, Height 55mm Marine, Endemic, Buried in mud at low tide North and South Islands ACFE. |
Mactra ordinaria E.A. Smith, 1898 Width 19mm, Height 12mm Marine, Endemic, Sculpture of very fine and dense concentric lirations, slightly stronger at the sides. Distinguished from juvenile discors by the lack of a posterior ridge North Island and northern half of South Island. In mud in shallow water ACE. |
Oxyperas elongatum (Quoy & Gaimard, 1835) Length 111mm, Width 65mm Long Trough Shell, Marine, Endemic North, South, Stewart and Chatham Islands. Shallow water to over 120 metres ACFME. |
Scalpomactra scalpellum (Reeve, 1854) Length 34mm, Height 20mm Marine, Endemic North, South, Stewart and Chatham Islands ACFE. |
Spisula discors Gray, 1873 Width 90mm, Height 80mm, Thickness 45mm Large Trough Shell, Marine, Endemic, Darker, more inflated than Mactra murchisoni. Colour white under a dark brown periostracum North, South and Stewart Island ACFE. |
Spisula murchisoni Deshayes, 1854 Width 98mm, Height 80mm Marine, Endemic, Wider, less inflated than Mactra discors. More laterally ovate, inequilateral, has transverse plications on the lateral teeth, and the periostracum is always pale straw colour North, South and Stewart Island. On exposed sandy beaches ACFE. |
Resania lanceolata Gray, 1852 Length 120mm, Height 57mm Lance Mactra, Marine, Endemic North and South Islands. Off sandy ocean beaches in shallow water ACFE. |
Zenatia acinaces (Quoy & Gaimard, 1835) Length 117mm, Height 54mm Scimitar Mactra, Marine, Endemic North and South Islands. Off sandy beaches in shallow water to about 50 metres ACFE. |
Paphies australis (Gmelin, 1791) Length 95mm, Height 59mm Pipi, Marine, Endemic North, South, Stewart Chatham and Auckland Islands. Buried in silty sand in sheltered areas ACFMAnE. |
Paphies donacina (Spengler, 1793) Length 127mm, Height 98mm Southern Tuatua, Marine, Endemic Lower North Island, South and Stewart Islands. More common in south CFE. |
Paphies subtriangulata (Gray in Wood, 1828) Length 98mm, Height 69mm Tuatua, Marine, Endemic North, upper South Island and Chatham Islands ACFME. |
Paphies ventricosa (Gray, 1843) Length 149mm, Height 91mm. with records over 165mm Toheroa, Marine, Endemic North and South Islands ACFE. |
Zemysia rakiura Powell, 1939 Width 11mm, Height 9mm Marine, Endemic Lower South Island, Stewart, Chatham and southern Islands FMAnE. |
Zemysia zelandica (Gray, 1835) Width 27mm, Height 25mm Marine North, South and Chatham Islands. From shallow water to about 90 metres ACFM |
Zemysina globus (Finlay, 1926) Width 28mm, Height 26mm, Thickness 20mm Marine, Endemic North, South, Stewart, Bounty, Auckland and Chatham Islands. In shallow water to about 90 metres ACFMAnE. |
Zemysina striatula (Finlay, 1926) Width 19mm, Height 17mm Marine, Endemic North, South and Chatham Islands. From low tide to over 75 metres ACME. |
Vesicomya bruuni Filatova, 1969 Height 7.2mm, Width 6.6mm Marine Northern NZ, Kermadec Trench 5900-9200 metres KA |
Vesicomya tasmanensis (Knudsen, 1970) Width 6.2mm, Height 5.3mm Marine, Endemic Tasman Sea, 4400 metres FE. |
Austrovenus stutchburyi (W. Wood, 1828) Width 60mm, Height 54mm. with records over 80mm Cockle, Marine, Endemic North, South, Stewart and Chatham Islands ACFMAnE. |
Bassina yatei (Gray, 1835) Width 66mm, Height 50mm Frilled Venus Shell, Marine, Endemic North, South and Stewart Island ACFE. |
Dosina mactracea (Broderip in Broderip & G.B. Sowerby, 1835) Width 70mm, Height 52mm Marine, Endemic, Coarse ridges, and rust on surface North and South Island. From low tide to about 120 metres ACFE. |
Dosinia anus (Philippi, 1848) Width 82mm, Height 73mm Coarse Dosinia, Marine, Endemic North Island and northern part of South Island ACE. |
Dosinia greyi Zittel, 1865 Width 50mm, Height 46mm Marine, Endemic, Coarse sculpture North Island and northern part of South Island. Dredged in soft mud around 10-15 metres ACE. |
Dosinia lambata (Gould, 1850) Width 40mm, Height 35mm Marine, Endemic, Very fine smooth sculpture. Found on sheltered sandy beaches North Island and northern part of South Island ACFE. |
Dosinia maoriana W.R.B. Oliver, 1923 Width 46mm, Height 43mm Marine, Endemic North, northern part of South Island and Chatham Islands ACME. |
Gomphina maorum (E.A. Smith, 1902) Width 19mm, Height 16mm Marine, Endemic Three Kings Islands. Far North and Northland east coast. In beach drift AE. |
Irus elegans (Deshayes, 1854) Length 60mm, Height 36mm Marine, Endemic, Burrows in soft rock North and South Island ACFE. |
Irus reflexus (Gray, 1843) Length 31mm, Height 24mm Marine, Endemic North, South Stewart and Chatham Islands. In holes in soft rock ACFME. |
Leukoma crassicosta (Deshayes, 1835) Width 60mm, Height 48mm Marine, Endemic North, South, Stewart and Chatham Islands ACFME. |
Notocallista multistriata (Sowerby, 1851) Width 30mm, Height 22mm Marine, Endemic North, South and Stewart Island. Dredged around 10-180 metres ACFE. |
Tawera marionae Finlay, 1928 Width 33mm, Height 28mm Marine, Endemic Off Otago and Chatham Islands FME. |
Tawera phenax (Finlay, 1930) Width 58mm, Height 52mm Marine, Endemic South Island, off Taiaroa Head, Otago. Snares and Auckland Islands. Dredged around 90-100 metres FAnE. |
Tawera rosa Powell, 1955 Width 48mm, Height 42mm Marine, Endemic, Finer sculpture than T. sphaericula, and less inflated Auckland Islands AnE. |
Tawera sphaericula (Deshayes, 1853) Width 36mm, Height 35mm Marine, Endemic, Coarse concentric ridges. Bluntly rounded beaks, very thick and solid Auckland Islands, dredged 15-65 metres AnE. |
Tawera spissa (Deshayes, 1835) Width 34mm, Height 27mm Marine, Common on sandy beaches. Highly variable patterns, usually zigzags or streaks North, South, Stewart and Chatham Islands ACFM |
Venerupis largillierti (Philippi, 1849) Width 75mm, Height 56mm Marine, Endemic North, South, Stewart, Chathams, Auckland and Campbell Islands ACFMAnE. |
Neolepton antipodum (Filhol, 1880) Width 3.6mm, Height 3mm Marine, Recent, Fossil North, South, Stewart, Chatham Islands, and southern islands, recorded from the intertidal zone (living on Corallina) down to at least 310m KACFMAnR.Fo. |
Neolepton sublaevigatum (Powell, 1937) Width 2.8mm, Height 2.3mm Marine, Endemic Off Three Kings Islands, 260 metres ACFME. |
Neolepton subobliquum (Powell, 1937) Width 2mm, Height 1.9mm Marine, Endemic Off Three Kings Islands, 260 metres AE. |
Neolepton triangulare (Dell, 1956) Width 2.6mm, Height 2.3mm Marine, Endemic Chatham Rise and off Chatham Islands ME. |
Pachykellya bernardi Powell, 1927 Width 1.2mm, Height 1.4mm Marine, Recent, Fossil, Endemic Fiordland FR.Fo.E. |
Pachykellya concentrica Powell, 1927 Width 1mm, Height 0.8mm Marine, Recent, Fossil, Endemic Off Puysegur Point, Fiordland, Chatham and Auckland Islands FMAnR.Fo.E. |
Pachykellya edwardsi F. Bernard, 1897 Height 1.5mm, Width 1.2mm Marine, Endemic Stewart Island and Otago to Fiordland FE. |
Pachykellya minima Powell, 1931 Width 0.9mm, Height 0.8mm Marine, Endemic North, South, Stewart, Chatham and southern Islands ACFMAnE. |
Pachykellya rotunda Powell, 1927 Width 1.5mm, Height 1.2mm Marine, Recent, Fossil, Endemic Off Puysegur Point, Fiordland. Off Snares Island FAnR.Fo.E. |
Puyseguria cuneata Powell, 1927 Width 1.7mm, Height 1.3mm Marine, Recent, Fossil, Endemic Off Puysegur Point, Fiordland to Stewart Island FR.Fo.E. |
Puyseguria prognata Powell, 1927 Width 1.3mm, Height 1.3mm Marine, Endemic Off Puysegur Point, Fiordland FE. |
Puyseguria tani Powell, 1939 Width 1.3mm, Height 1.2mm Marine, Recent, Fossil, Endemic Stewart Island. In shell sand FR.Fo.E. |