NZ Mollusca

Agatha georgiana (Hutton, 1885)

Agatha georgiana
Tutukaka, Whangarei, 11mm
Classification: Gastropoda - Caenogastropoda - Heterobranchia
Size/Grows to: Height 15mm, Width 6mm
Distribution: Northland to Stewart Island and Chatham Islands. Shallow water to 110 metres [A.C.F.M.E.]
Some known Localities
  • Off North Cape, Far North, 137 metres *2
  • Off Rangaunu Bay, Northland, 23 metres
  • Whangaroa Harbour entrance, 13 metres
  • Centre of Pekapeka Bay, Whangaroa Harbour, Northland *2
  • NE of Ninepin Rock, Bay of Islands, 75 metres
  • Off Takou Bay, Bay of Islands, 80 metres *2
  • Off Twin Rocks, Bay of Islands, 46-73 metres *2
  • Off Takou Bay, Bay of Islands, 37 metres
  • Deep Water Cove, Bay of Islands, 33-46 metres
  • N of Poor Knights, Northland, 146 metres *2
  • W of Poor Knights Islands, Northland, 121-113 metres *2
  • Tutukaka Harbour, Whangarei
  • Off Pakiri, 40 metres
  • E of Great Barrier Island, 201 metres, (holotype of Odostomia stygia Suter, 1913, holotype of Odostomia marginata Murdoch & Suter, 1906)
  • 10 km W of Cuvier Island *2
  • Off Aldermen Islands, 165 metres
  • Off E side of Mayor Island, Bay of Plenty, 59-74 metres *2
  • Off Mayor Island, Bay of Plenty, 207-220 metres
  • Te Piki, near Cape Runaway, (Castlecliffian, upper Pleistocene) (Fossil) *2
  • Off North Rock, Mount Maunganui
  • Castlecliff, Wanganui (Fossil), (Upper Pleistocene)
  • SW of Waitotara River mouth, 77-82 metres *2
  • SW of Wanganui, 58-64 metres *2
  • W of Rangitikei River Mouth, 75 metres *2
  • NE of Stephens Island, 110 metres *2
  • NE of Stephens Island, 117-119 metres
  • NE of Stephens Island, 132 metres *2
  • E of Stephens Island, 128 metres
  • E of Stephens Island, Cook Strait, 106 metres
  • E of D'Urville Island, Cook Strait, 60 metres *2
  • Between Kapiti Island and Stephens Island, 148 metres
  • Off Chetwode Islands, Cook Strait *2
  • W of Kapiti Island, 113 metres
  • W of Kapiti Island, 137 metres
  • Between Titi Island & Alligator Head, Marlborough Sounds, 84-88 metres
  • Port Gore entrance, Marlborough Sounds, 15 metres
  • Queen Charlotte Sound, 46 metres
  • N Cook Strait, 282-293 metres *2
  • N rim of Nicholson Canyon, S of Island Bay, Cook Strait *2
  • Off Baring Head, Cook Strait
  • Mernoo Bank, Chatham Rise
  • Head of Pegasus Canyon, 446 metres
  • Chatham Rise, NE of Kaingaroa, 220-229 metres (120-125 fathoms) *2
  • Petre Bay, Chatham Islands, 172 metres
  • E of Forty Fours, Chatham Islands, 238 metres *2
  • SE of Pitt Island, Chatham Islands, 284 metres *2
  • Caswell Sound head, Fiordland
  • Shelf off Oamaru
  • Head of Waitaki Canyon, off Oamaru, 293-256 metres *2
  • Deas Cove, Thompson Sound, Fiordland *2
  • Thompson Basin floor, Thompson Sound, 350 metres
  • Thompson Basin floor, Thompson Sound, 350 metres
  • Seymour Basin, Doubtful Sound entrance, 117-128 metres *2
  • Doubtful Sound, Off Shelter Island No. 2, 27 metres *2
  • Bradshaw Basin Floor, Bradshaw Sound, 415 metres *2
  • Doubtful Sound, Utah Basin floor, 400 metres
  • Patea (Gaol) Passage, Doubtful Sound
  • Seymour Basin, Doubtful Sound, 64 metres
  • Seymour Basin, Doubtful Sound, 94 metres
  • Seymour Basin, Doubtful Sound, 115 metres
  • Crooked Arm Sill, Doubtful Sound, Fiordland, 54-60 metres
  • Off Chatham Point, upper Breaksea Sound, 42 metres *2
  • Between unnamed island and Breaksea, Dusky Sound, 37 metres
  • Karitane Canyon, off Taiaroa Head, 420 metres
  • Karitane Canyon, off Otago Peninsula, 220 metres
  • Karitane Canyon, off Taiaroa Head, 530-585 metres *2
  • '104 Fathom Point', Bowen Channel, Dusky Sound, 10-17 metres *2
  • Off NW end of Cooper Island, Dusky Sound, 12 metres
  • Off Taiaroa Head, Otago, 137 metres
  • Nine Fathom Passage, near head of Dusky Sound, Fiordland *2
  • Taiaroa Canyon, off Otago, 380-384 metres
  • Taiaroa Canyon, off Otago, 549 metres *2
  • Taiaroa Canyon, off E Otago Peninsula, 549 metres
  • Off Taiaroa Head, Otago, 220 metres *2
  • NE of Cape Saunders, off Otago Peninsula, 105 metres
  • Papanui Canyon, off Otago Peninsula, 555-604 metres
  • Off Taiaroa Head, Otago, 220 metres
  • Papanui Canyon, off Otago Peninsula, 340-620 metres
  • Off Otago Peninsula, 619-550 metres
  • Off point of bay, N side of Edwardson Sound, Fiordland, 16 metres *2
  • Saunders Canyon, off Otago Heads, 421 metres
  • Saunders Canyon, off Otago Heads, 457 metres
  • Saunders Canyon, off Otago, 360 metres
  • '55 Fathom Point', S side Cunaris Sound, Chalky Inlet, Fiordland *2
  • Cording Islets, Preservation Inlet, Fiordland, 32 metres
  • Off Taieri, S of Dunedin, 60 metres
  • Off Taieri, S of Dunedin, 150 metres
  • Off Taieri, S of Dunedin, 91 metres
  • Off Taieri, S of Dunedin, 180 metres
  • SE of Nugget Point, Otago, 140 metres
  • Off Vaila Voe, Paterson Inlet
  • Stewart Island, (holotype of Odostomia bembix Suter, 1908)
  • Easy Harbour, Stewart Island
  • North Arm, Port Pegasus, Stewart Island, 37-46 metres *2
more localitiesspecies mapgenus map
References:
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.265)

Note: Localities are approximate, and represent only some of the known localities for the species.

*2 © Museum of New Zealand Te Papa Tongarewa CC BY-NC-ND