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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
Bivalvia - Protobranchia - Nuculanida - Family: Malletiidae

Malletiidae

 

Genus: Katadesmia

 
Katadesmia vincula (Dall, 1908) (=cuneata Knudsen not Jeffreys)
Length 10.4mm, Width 5.2mm, Endemic
Atlantic, Indian, Pacific and Antarctic Oceans [K.AFE.]
 

Genus: Malletia

 
Malletia aoteana (Marshall, 1978)
Length 14mm, Height 8.5mm, Endemic
East Cape to Banks Peninsula, in mud 640-1097 metres [CE.]
Malletia galatheae Knudsen, 1970
Length 18.1mm, Height 10.0mm, Endemic
Tasman Sea, 3580 metres [FE.]
 

Genus: Neilo

 
Neilo annectens Powell, 1931 (=rugata Dell)
Length 42mm, Height 22mm, Endemic
Cook Strait and off east coast of South Island to Taiaroa Heads, in 110-700 metres [CFE.]
Neilo australis (Quoy & Gaimard, 1835)
Length 42mm, Height 21mm, Endemic
North, South, Stewart and Chatham Islands [ACFME.]
Neilo blacki Marshall, 1978
Length 36mm, Height 19mm, Endemic
East Cape to Banks Peninsula. Living in mud from 430-1100 metres [CE.]
Neilo wairoana delli Marshall, 1978
Length 32mm, Height 16mm, Endemic
Off Ninety Mile Beach, Northland. Kaikorua, Otago coast, Fiordland, Chatham Rise and Chatham Islands. In mud from 178-1006 metres [ACFME.]

Genus: Neilonella

 
Neilonella benthicola (Dell, 1956)
Length 5mm, Height 3.2mm, Endemic
Chatham Rise and off Chatham Islands [CME.]
Neilonella flemingi (Dell, 1956)
Length 4.8mm, Height 3.6mm, Endemic
Chatham Rise and off Chatham Islands [CME.]
 
Neilonella hadalis Knudsen, 1970
Endemic
Kermadec Trench, 6660-8300 metres [K.AE.]
 
Length 8.8mm, Width 7.4mm
Kermadec area, 4540 metres [K.A]
 
Neilonella wrighti (Fleming, 1948)
Length 3.6mm, Height 2.7mm, Endemic
Off North, South and Chatham Islands [ACFME.]