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Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species. They have been adopted to give an approxomation of the range of each species within New Zealand.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island
F=
Forsterian - Otago, Fiordland and Stewart Island
M=
Moriorian - Chatham Islands, Pitt Island
An=
Antipodean - Subantarctic Islands of New Zealand
FW =
Freshwater
L =
Land
E =
Endemic
I =
Introduced
Gastropoda - Caenogastropoda - Hypsogastropoda - Family: Rissoidae

Rissoidae: Rissoinae

 

Genus: Alvania

 
Alvania kermadecensis (Oliver, 1915)
Endemic
Kermadec Islands [K.E.]
 

Genus: Alvania (Linemera)

 
Height 2mm, Width 1.4mm, Endemic
Taiaroa Canyon, off Otago Peninsula, 550 metres [FE.]
Height 2.05mm, Width 1.25mm, Endemic
Off Three Kings Islands [AE.]
 
Height 2.15mm, Width 1.2mm, Endemic
Off Bounty Islands [AnE.]
Height 2.6mm, Width 1.6mm, Endemic
Off Otago Heads. Off Snares, Auckland and Campbell Islands [FAnE.]
 
Height 3.5mm, Width 1.7mm, Endemic
Off Northland offshore Islands [AE.]
 
Height 3.0, mm, Width 1.6mm, Endemic
Off Oamaru [FE.]
 
Height 1.8mm, Width 1.05mm, Endemic
Off Chatham and Bounty Islands [MAnE.]
 
Alvania (Linemera) pingue (Webster, 1906)
Height 2mm, Width 1.25mm, Endemic
Northland. Off Great Barrier Island, 200 metres [AE.]
 
Height 2.3mm, Width 1.3mm, Endemic
Off Three Kings Islands to Northland [AE.]
 
Height 2.4mm, Width 1.3mm, Endemic
Off Chatham Islands, trawled in approximately 240 metres [ME.]
Height 3.0mm, Width 1.5mm, Endemic
Off Lyttelton and off Chatham Rise [CME.]
 

Genus: Haurakia

 
Haurakia aupouria (Powell, 1937)
Height 1.9mm, Width 1.25mm, Endemic
Off Three Kings Islands [AE.]
 
Haurakia crassicosta (Powell, 1955)
Height 2.45mm, Width 1.55mm, Endemic
Off Stewart Island, Snares and Auckland Islands [FAnE.]
 
Haurakia finlayi (Powell, 1937)
Height 2.9mm, Width 1.6mm, Endemic
Off Three Kings Islands [AE.]
 
Haurakia hamiltoni (Suter, 1898)
Height 2.5mm, Width 1.5mm, Endemic
Throughout NZ and Chatham Islands [ACFME.]
 
Haurakia huttoni (Suter, 1898)
Height 2.5mm, Width 1.25mm, Endemic
Southern part of South Island, Stewart and Snares Islands [FAnE.]
 
Haurakia infecta (Suter, 1908)
Height 1.75mm, Width 1.1mm, Endemic
Throughout NZ and Chatham Islands [ACFME.]
 
Haurakia latiambita (Ponder, 1967)
Height 1.8mm, Width 1.2mm, Endemic
Northland to Mayor Island, Bay of Plenty [AE.]
 
Haurakia minuscula (Powell, 1955)
Height 2.05mm, Width 1.34mm, Endemic
Off Auckland Islands [FAnE.]
 
Haurakia mobilicosta (Ponder, 1967)
Height 1.59mm, Width 0.92mm, Endemic
Northland to Cape Kidnappers [ACE.]
 
Haurakia otagoensis (Dell, 1956)
Height 2.6mm, Width 1.8mm, Endemic
Taiaroa Canyon, off Otago Peninsula [FE.]
 
Haurakia pellucida (Powell, 1937)
Height 1.6mm, Width 1.1mm, Endemic
Off Three Kings Islands [AE.]
 
Haurakia semireticulata (Murdoch & Suter, 1906)
Height 3.3mm, Width 1.7mm, Endemic
Off Northland to Bay of Plenty [AE.]
 
Haurakia sinuastoma (Ponder, 1967)
Height 1.0mm, Width 0.6mm, Endemic
Far North [AE.]
 
Haurakia subsuturalis (Dell, 1956)
Height 2.3mm, Width 1.4mm, Endemic
Off Eastern Otago [FE.]
 
Haurakia wallacei (Oliver, 1915)
Endemic
Kermadec Islands [K.E.]
 

Genus: Manzonia (Simulamerelina)

 
Height 2.9mm, Width 1.25mm, Endemic
Northland east coast [AE.]
 
Kermadec Islands [K.]
 

Genus: Onoba

 
Onoba alpha (Powell, 1955)
Height 1.9mm, Width 1.17mm, Endemic
Off Snares and Antipodes Islands [FAnE.]
 
Onoba aupouria (Powell, 1940)
Height 1.25mm, Width 1.75mm, Endemic
Between Spirits Bay and Three Kings Islands [AE.]
 
Onoba beta (Powell, 1955)
Height 2.0mm, Width 1.16mm, Endemic
Off Snares Islands [FE.]
 
Onoba candidissima (Webster, 1905)
Height 2.0mm, Width 1.0mm, Endemic
Northland to Mahia [ACE.]
 
Onoba delicatula (Powell, 1933)
Height 1.9mm, Width 1mm, Endemic
Auckland Islands. In beach drift and dredged to over 25 metres [AnE.]
 
Onoba delta (Powell, 1955)
Height 3.05mm, Width 1.8mm, Endemic
Off Snares Islands [AnE.]
 
Onoba edita (Powell, 1939)
Height 3.0mm, Width 1.3mm, Endemic
Stewart Island and Fiordland [FE.]
 
Onoba fallai (Powell, 1955)
Height 2.25mm, Width 1.1mm, Endemic
Auckland, Campbell and Antipodes Islands [AnE.]
 
Onoba foveauxiana (Suter, 1898)
Height 2.5mm, Width 1.5mm, Endemic
Otago and Stewart Island [FAnE.]
 
Onoba fumata (Suter, 1898)
Height 2.0mm, Width 1.0mm, Endemic
North, South, Chathams and Auckland Islands [ACFMAnE.]
 
Onoba gamma (Powell, 1955)
Height 2.6mm, Width 1.5mm, Endemic
Off Snares Islands [FAnE.]
 
Onoba inornata (Powell, 1933)
Height 1.92mm, Width 0.9mm, Endemic
Wellington, South Island, Snares and Chatham Islands [CFMAnE.]
 
Onoba insculpta (Murdoch, 1905)
Height 2.5mm, Width 1.3mm, Endemic
Wellington, Foveaux Strait, Stewart Island, Snares, Auckland and Bounty Islands [CFAnE.]
 
Onoba iredalei (Powell, 1937)
Height 2.0mm, Width 1.5mm, Endemic
Off Three Kings Islands [AE.]
 
Onoba kermadecensis (Powell, 1927)
Endemic
Kermadec Islands [K.E.]
 
Onoba morioria Powell, 1933
Height 1.9mm, Width 1.0mm, Endemic
Chatham Islands [ME.]
 
Onoba obliquata (Powell, 1940)
Height 1.4mm, Width 0.6mm, Endemic
Far North [AE.]
 
Onoba oliveri (Powell, 1955)
Height 2.4mm, Width 1.65mm, Endemic
Campbell Islands [AnE.]
 
Onoba parvula (Powell, 1931)
Height 1.3mm, Width 0.59mm, Endemic
Off Awanui Heads, Northland [AE.]
 
Onoba paucicostata (Powell, 1931)
Height 2.06mm, Width 1.16mm, Endemic
Off Bounty Islands [AnE.]
 
Onoba sorenseni (Powell, 1955)
Height 2.5mm, Width 1.5mm, Endemic
Campbell, Auckland and Antipodes Islands [AnE.]
 
Onoba tenuistriata (Powell, 1933)
Height 2.0mm, Width 1.25mm, Endemic
Off Auckland Islands [AnE.]
 

Genus: Onoba (Manawatawhia)

 
Height 1.8 mm, Width 0.7mm, Endemic
Off Three Kings Islands [AE.]
 

Genus: Onoba (Ovirissoa)

 
Onoba (Ovirissoa) delli (Ponder, 1968)
Height 1.8mm, Width 0.9mm, Endemic
Lower North Island. In shell sand [CE.]
 
Height 2.85mm, Width 1.7mm, Endemic
Off Three Kings Islands [AE.]
 
Height 3.1mm, Width 2.15mm, Endemic
Northland [AE.]
 
Onoba (Ovirissoa) exuta (Powell, 1937)
Height 2.65mm, Width 1.6mm, Endemic
Off Three Kings Islands [AE.]
 
Height 2.2mm, Width 1.0mm, Endemic
South of South Island and Stewart Island [FMAnE.]
 
Height 2.4mm, Width 1.4mm, Endemic
Off Poor Knights Islands and Northland [AE.]
 
Height 2.0mm, Width 0.9mm, Endemic
Off Puysegur Point, Fiordland [FE.]
 

Genus: Powellisetia

 
Powellisetia australis (Watson, 1886) (=Ovirissa nivosa of authors not Powell)
Height 2.5mm, Width 1.45mm
Sub-Antarctic Islands, deep [An]
 
Powellisetia bilirata Ponder, 1965
Height 1.05mm, Width 0.675mm, Endemic
Northland [AE.]
 
Powellisetia cf. deserta (E.A.Smith, 1907) (=Eatoniella kerguelensis Tomlin)
Endemic
Macquarie Island. Sub-Antarctic Islands, deep [AnE.]
 
Height 1.29mm, Width 1.09mm, Endemic
Northland [AE.]
 
Powellisetia gradata (Suter, 1908)
Height 1.65mm, Width 1.1mm, Endemic
Off Otago, Stewart, Snares and Bounty Islands [FAnE.]
 
Powellisetia lineata (Smith, 1962)
Height 1.41mm, Width 0.96mm, Endemic
Stewart Island. Low tide [FE.]
 
Powellisetia microstriata (Murdoch, 1905)
Height 2.07mm, Width 1.11mm, Endemic
Deep water off South Island, Snares and Bounty Islands [FAnE.]
 
Height 1.8mm, Width 1.3mm, Endemic
Off south of the South Island and Snares Islands [FAnE.]
 
Height 1.35mm, Width 0.88mm, Endemic
Off Three Kings Islands to Mayor Island, Bay of Plenty [AE.]
 
Powellisetia retusa (Powell, 1927)
Height 1.8mm, Width 1.0mm, Endemic
South of South Island, Stewart, Snares, Auckland, Bounty and Chatham Islands [FMAnE.]
 
Powellisetia subgradata (Powell, 1937)
Height 1.7mm, Width 1.1mm, Endemic
Off Three Kings Islands to Mayor Island, Bay of Plenty [AE.]
 
Powellisetia subtenuis (Powell, 1937)
Height 1.2mm, Width 0.8mm, Endemic
Throughout NZ [ACFMAnE.]
 
Height 1.25mm, Width 0.75mm, Endemic
South of South Island. Stewart and Bounty Islands [FAnE.]
 
Powellisetia unicarinata (Powell, 1930)
Height 1.19mm, Width 0.59mm, Endemic
Northland to Bay of Plenty [AE.]
 

Genus: Rissoa

 
Rissoa cylindrella Odhner, 1924
Height 2.5mm, Width 1.1mm, Endemic
Far North [AE.]
 

Genus: Striatestea

 
Height 1.4mm, Width 0.6mm, Endemic
South of Bounty Islands [AnE.]
 
Striatestea eulima Powell, 1940
Height 1.45mm, Width 0.5mm, Endemic
Far North [AE.]
 
Striatestea poutama Ponder, 1967
Height 1.51mm, Width 0.63mm, Endemic
Stewart Island. Poutama Island, South Cape [FE.]