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Taxonomy
Family:
AMPHIBOLIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Pylopulmonata (Superorder)
> Amphiboloidea (Superfamily)
> Amphibolidae (Family)
> Amphibola (Genus)
> crenata (Species)
Genus Synonyms:
=Ampullacera Quoy & Gaimard, 1832
=Thallicera Swainson, 1840
Synonymised Names:
=Amphibola australis Schumacher, 1817
=Amphibola avellana (Bruguière, 1789)
=Amphibola crenata (Martyn, 1786)
=Amphibola obvoluta Jonas, 1846
=Bulimus avellana Bruguière, 1789
=Cyclostrema obliquata Hutton, 1885
=Helix crenata Gmelin, 1791
=Limax crenata Martyn, 1786
Images: Amphibola crenata (Gmelin, 1791)
On mud flats around Auckland. 25mm
The Mud Snail found commonly on high-tidal mud flats
Showing the faecal mud ring which houses the egg mass. Houhora Harbour, on mud flats, Far North, NZ. 25mm
Taxonomy
Family:
AMPHIBOLIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Pylopulmonata (Superorder)
> Amphiboloidea (Superfamily)
> Amphibolidae (Family)
> Amphibola (Genus)
> crenata (Species)
Genus Synonyms:
=Ampullacera Quoy & Gaimard, 1832
=Thallicera Swainson, 1840
Synonymised Names:
=Amphibola australis Schumacher, 1817
=Amphibola avellana (Bruguière, 1789)
=Amphibola crenata (Martyn, 1786)
=Amphibola obvoluta Jonas, 1846
=Bulimus avellana Bruguière, 1789
=Cyclostrema obliquata Hutton, 1885
=Helix crenata Gmelin, 1791
=Limax crenata Martyn, 1786
Details: Amphibola crenata (Gmelin, 1791)
Size/Grows to:
Height 39mm
Distribution:
North and South Islands. On high-tidal mud-flats
Geographical Range:
ACFE.
Notes:
Mud Snail, Karahu, Marine, Endemic
Distribution Map
 
References and Publications
  • Hayward, B.W. Sep/2009 Mass mating of the mud snail, Amphibola crenata, Poirieria, 34 (p.23)
  • Golding, R.E., Ponder, W.F., Byrne, M. 2007 Taxonomy and anatomy of Amphiboloidea (Gastropoda: Heterobranchia: Archaeopulmonata), Zootaxa, 1476 (p.7)
  • Walsby, J.R., Morton, J.E. 1982 Chitons, Limpets & Topshells & Pulmonates (Amphineura, Archaeogastropoda & Pulmonata), Marine Molluscs, University of Auckland, Leigh Marine Laboratory, 1 (p.77)
  • Gardner, N.W. May/1980 Amphibola crenata (Gmelin, 1791), Poirieria, 10(5) (p.82)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.294)

Key to Geographical Ranges
NZ Map showing 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
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