Acirsa cookiana (Dell, 1956)
Height 10mm, Width 3.5mm
Marine, Native - Endemic
North Island, Cook Strait and eastern South Island

Amaea thielei (Boury, 1913)
Height 30mm
Marine
Kermadec Islands

Cirsotrema forresti Dell, 1956
Height 7mm, Width 3mm
Marine, Native - Endemic
North Island, Hawkes Bay to Chatham Islands

Cirsotrema zelebori (Dunker, 1866)
Height 33mm, Width 12mm
Wentletrap, Marine, Native - Endemic
Three Kings Islands, North, South, Stewart and Chatham Islands

Claviscala kuroharai Kuroda & Habe, 1961
Height 83mm, Width 22.4mm
Marine
Off Three Kings Islands, Norfolk Islands, Japan. 200-730 metres

Cycloscala sp. cf. hyalina (G.B. Sowerby II, 1844)
Marine
Kermadec Islands

Epidendrium billeeanum (Du Shane & Bratcher, 1965)
Marine
Kermadec Islands. Indo-Pacific and the occidental Pacific Ocean including the Red Sea, Hawaii and the Galapagos

Epitonium bucknilli Powell, 1924
Height 16mm, Width 7mm
Wentletrap, Marine, Native - Endemic, Gaps between varices are striated
Northland to Mahia

Epitonium jukesianum (Forbes, 1852)
Height 13mm, Width 4mm
Wentletrap, Marine, Native - Endemic
North Island to Cook Strait. Also Tasmania and from New South Wales to Western Australia

Epitonium minorum (Iredale, 1936)
Height 14mm, Width 5mm
Wentletrap, Marine, In shallow water on fine sand, in open coast situations. Smooth between varices
Northland east coast. Also New South Wales, Australia

Epitonium tenellum (Hutton, 1885)
Height 20mm, Width 9mm
Wentletrap, Marine, Native - Endemic, In sheltered shallow water, on silty sand
Northland to Nelson/Marlborough, in silty sand. Also Queensland to Victoria, Australia

Gyroscala commutata (Monterosato, 1877)
Height 32mm, Width 13mm
Marine, Umbilicus is closed, there is a spiral rib on the base of the body whorl, and a brown band is present at the top of whorls
Kermadec, Australia and Northland, NZ

Gyroscala sp. aff. lamellosa (Lamarck, 1822)
Marine, Native - Endemic

Iphitus neozelanicus (Dell, 1956)
Height 3.3mm, Width 2.3mm
Marine, Native - Endemic
Kermadecs to Auckland Islands. Trawled from around 250-900 metres

Janthina exigua (Lamarck, 1822)
Height 23mm, Width 21mm
Violet Snail, Marine, Pelagic, feeds mainly on colonial cnidarians (Physalia, Velella, Porpita). Strong and widely spaced growth ridges
Commonly washed ashore on ocean beaches

Janthina globosa Swainson, 1826
Height 32mm, Width 26mm
Violet Snail, Marine, Pelagic, feeds mainly on colonial cnidarians (Physalia, Velella, Porpita)
Occasionally washed ashore on Northland east coast beaches, down to Awhitu Peninsula on the west coast, and eastern Bay of Plenty

Janthina janthina (Linnaeus, 1758)
Width 40mm, Height 38mm
Violet Snail, Marine, Pelagic, feeds mainly on colonial cnidarians (Physalia, Velella, Porpita)
World wide

Janthina umbilicata d'Orbigny, 1840
Height 20mm, Width 17mm
Marine, Pelagic, feeds mainly on colonial cnidarians (Physalia, Velella, Porpita). Fine and closely spaced growth ridges
Kermadec Islands and Northern NZ

Murdochella alacer Finlay, 1926
Height 4.7mm, Width 1.6mm
Marine, Native - Endemic
Off North Cape and Northland

Murdochella levifoliata (Murdoch & Suter, 1906)
Height 5.7mm, Width 1.6mm
Marine, Native - Endemic
Off North, South, Stewart, Chathams and Snares Islands

Opalia ahiparana (Powell, 1930)
Height 7mm, Width 2.5mm
Marine, Native - Endemic
Northland, off Ahipara 130 metres

Opalia maxwelli (Finlay, 1930)
Height 7.5mm, Width 2.5mm
Marine, Native - Endemic
Off Taiaroa Head, Otago

Opalia zelandica (Finlay, 1930)
Height 10mm
Marine, Native - Endemic
Northland, off North Cape

Papuliscala superlata Finlay, 1930
Height 4.5mm, Width 1.3mm
Marine, Native - Endemic
Off North Cape

Recluzia lutea (Bennett, 1840)
Height 37mm, Width 26mm
Marine, Pelagic, feeds on floating Minyadidae anemones
Washed ashore Northland to Bay of Plenty