Quick Search
To Advanced Search
Taxonomy
Family:
RETUSIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Cephalaspidea (Order)
> Bulloidea (Superfamily)
> Retusidae (Family)
> Retusa (Genus)
> opima (Species)
Genus Synonyms:
=Clistaxis Cossmann, 1895
=Coleophysis P. Fischer, 1883
=Cryptaxis Jeffreys, 1883
=Cylichnina Monterosato, 1884
=Mamilloretusa F. Nordsieck, 1972
=Retusa (Coleophysis) P. Fischer, 1883
=Retusa (Cylichnina) Monterosato, 1884
=Retusa (Retusa) T. Brown, 1827
=Retusa (Sulcularia) Dall, 1921
=Sulcoretusa J.Q. Burch, 1945
=Tornatina (Coleophysis) P. Fischer, 1883
=Tornatina (Utriculus) T. Brown, 1844
=Utriculus T. Brown, 1844
Synonymised Names:
=Cylichnina opima Finlay, 1926
Images: Retusa opima (Finlay, 1926)
Holotype, collected at Lyall Bay, Wellington, NZ (MA70233). © Auckland Museum (CC-BY)
Collected at Lyall Bay, Wellington, NZ (MA73681). © Auckland Museum (CC-BY)
Taxonomy
Family:
RETUSIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Cephalaspidea (Order)
> Bulloidea (Superfamily)
> Retusidae (Family)
> Retusa (Genus)
> opima (Species)
Genus Synonyms:
=Clistaxis Cossmann, 1895
=Coleophysis P. Fischer, 1883
=Cryptaxis Jeffreys, 1883
=Cylichnina Monterosato, 1884
=Mamilloretusa F. Nordsieck, 1972
=Retusa (Coleophysis) P. Fischer, 1883
=Retusa (Cylichnina) Monterosato, 1884
=Retusa (Retusa) T. Brown, 1827
=Retusa (Sulcularia) Dall, 1921
=Sulcoretusa J.Q. Burch, 1945
=Tornatina (Coleophysis) P. Fischer, 1883
=Tornatina (Utriculus) T. Brown, 1844
=Utriculus T. Brown, 1844
Synonymised Names:
=Cylichnina opima Finlay, 1926
Details: Retusa opima (Finlay, 1926)
Size/Grows to:
Height 3.3mm, Width 1.8mm
Distribution:
Northland to Stewart Island
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.277)
  • Finlay, H. 1926 A Further Commentary on New Zealand Molluscan Systematics, Transactions and Proceedings of the Royal Society of New Zealand, 57 (p.439) Original Description

*98 © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
Recently Viewed