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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.
Kermadec Islands
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island
Forsterian - Otago, Fiordland and Stewart Island
Moriorian - Chatham Islands, Pitt Island
Antipodean - Subantarctic Islands of New Zealand
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Bivalvia (Phylum) > Mollusca (Subphylum) > Pteriomorphia (Subclass) > Mytilida (Order) > Mytiloidea (Superfamily) > Mytilidae (Family)
Mytilidae: Mytilinae
Genus: Mytilusmap >
Mytilus galloprovincialis Lamarck, 1819 (=aoteanus Powell, =edulis Suter, =planulatus Lamarck)
Length 120mm, Width 50mm, Blue Mussel
North, South, Stewart, Chatham, Auckland and Campbell Islands [ACFMAn]
Genus: Pernamap >
Perna canaliculus (Gmelin, 1791)
Length 160mm, Width 75mm, Green Mussel, Green Lipped Mussel. Endemic
North, South, Stewart and Chatham Islands [ACF]
Mytilidae: Bathymodiolinae
Genus: Adipicolamap >
Adipicola osseocola (Dell, 1987)
Length 24mm, Height 10mm, Endemic
North of Chatham Islands. On whale skull 880-882 metres [M]
Genus: Bathymodiolusmap >
Bathymodiolus manusensis Hashimoto & Furuta, 2007
Vent Mussel
Kermadec Ridge, SSW of Tonga, Monowai Caldera, 1143 metres [K.]
Genus: Benthomodiolusmap >
Off White Island, down to Chatham Islands. On bored logs [ACM]
Genus: Gigantidasmap >
Gigantidas gladius Marshall, 2003
Length 316mm, Height 54mm, Giant Vent Mussel. Endemic
Submarine volcanoes, Southern Kermadec Ridge, 216-755 metres [K.]
Gigantidas tangaroa (Cosel & Marshall, 2003)
Length 200mm, Endemic
Off SE North Island, from active submarine volcanoes around 920-1205 metres. Off Cape Turnagain [C]
Genus: Idasmap >
Idas japonica (Habe, 1976)
Southwest Pacific, benthic [A]
Idas washingtoniana (Bernard, 1978)
Southwest Pacific, benthic [ACM]
Genus: Teruamap >
Terua arcuatilis (Dell, 1995)
Length 30mm, Height 8mm, Endemic
Chatham Rise and Challenger Plateau. On whale bone from 550-1100 metres [CM]
Genus: Vulcanidasmap >
Vulcanidas insolatus Marshall, 2010
Length 178mm, Width 92mm, Endemic. Near active volcanic venting sites
Kermadec Ridge. Macauley Caldera and Giggenback volcano, 140-504 metres [K.]
Mytilidae: Crenellinae
Genus: Arcuatulamap >
Arcuatula senhousia Benson, 1842
Length 31mm, Height 15mm, Asian Mussel. Introduced
Worldwide. Northland, New Zealand. Clustered in dense masses in muddy harbours [A]
Genus: Gregariellamap >
Gregariella barbata (Reeve, 1858)
Length 11mm, Width 5mm
North, South and Chatham Islands. Also Western Australia to New South Wales [K.ACM]
Genus: Musculusmap >
Musculus cumingianus (Reeve, 1857)
Kermadec Islands [K.]
Musculus impactus (Hermann, 1782)
Length 45mm, Width 28mm, Nesting Mussel
North, South, Stewart and Chatham Islands. In clumps under rocks below low tide [ACFM]
Genus: Rhomboidellamap >
Rhomboidella radians (Suter, 1908)
Width 4.2mm, Height 6mm, Endemic
North Island. Three Kings Islands to Bay of Plenty [A]
Mytilidae: Dacrydiinae
Genus: Dacrydiummap >
Dacrydium pelseneeri Hedley, 1906
Width 1.5mm, Height 2.2mm, Endemic
Off Three Kings Islands, off Northland to East Cape [AF]
Mytilidae: Lithophaginae
Genus: Zelithophagamap >
Zelithophaga truncata (Gray, 1843)
Length 50mm, Height 15mm, Endemic
North and South Islands. Boring into soft rock [ACF]
Mytilidae: Modiolinae
Genus: Aulacomyamap >
Aulacomya maoriana (Iredale, 1915) (=ater Molina, =magellanicus Lamarck)
Length 60mm, Width 30mm, Ribbed Mussel. Endemic
Lower North Island, South, Stewart, Chathams, Bounty, Auckland and Campbell Islands. Also off North Cape and Three Kings Islands [ACFMAn]
Genus: Modiolusmap >
Modiolus areolatus (Gould, 1850)
Length 115mm, Width 70mm
North, South Stewart, Chatham, Bounty, Auckland and Campbell Islands [ACFMAn]
Modiolus auriculatus Krauss, 1848
SW Pacific, Lord Howe Island, Norfolk and Kermadec Islands [K.]
Genus: Septifermap >
Septifer cumingii Récluz, 1849 (=bryanae Pilsbry, =cf. bilocularis of authors)
Kermadec Islands and North Island. Northland east coast [K.A]
Genus: Xenostrobusmap >
Xenostrobus neozelanicus (Lamarck, 1819) (=pulex of authors not Lamarck)
Length 25mm, Height 12mm, Little Black Mussel
North, South and Stewart Island. Snares and Auckland Islands. Also Western Australia. On open coasts at low tide [ACFAn]
Xenostrobus securis (Lamarck, 1819)
Length 35mm, Height 17mm
North, South and Chatham Islands. Also Western Australia to Queensland. Estuarine areas [ACFM]