Species List for Subfamily: Modiolinae
Mollusca (Phylum) > Bivalvia (Class) > Pteriomorphia (Subclass) > Mytilida (Order) > Mytiloidea (Superfamily) > Mytilidae (Family) > Modiolinae (Subfamily)
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Subfamily: Modiolinae
Aulacomya maoriana (Iredale, 1915)
(=ater Molina, =magellanicus Lamarck)
Length 60mm, Width 30mm, Ribbed Mussel, Marine, Endemic
Lower North Island, South, Stewart, Chathams, Bounty, Auckland and Campbell Islands. Also off North Cape and Three Kings Islands ACFMAnE.
Modiolus areolatus (Gould, 1850)
Length 115mm, Width 70mm, Marine
North, South Stewart, Chatham, Bounty, Auckland and Campbell Islands ACFMAn- Modiolus auriculatus Krauss, 1848
Marine
SW Pacific, Lord Howe Island, Norfolk and Kermadec Islands K 
Septifer cumingii Récluz, 1849
(=bryanae Pilsbry, =cf. bilocularis of authors)
Marine
Kermadec Islands and North Island. Northland east coast KA
Xenostrobus neozelanicus (Lamarck, 1819)
(=pulex of authors not Lamarck)
Length 25mm, Height 12mm, Little Black Mussel, Marine
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, Marine
North, South and Chatham Islands. Also Western Australia to Queensland. Estuarine areas ACFM
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 approximation 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
N =
North Island
S =
South Island
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil