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Taxonomy
Family:
PLEUROBRANCHIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Ringipleura (Subterclass)
> Nudipleura (Superorder)
> Pleurobranchida (Order)
> Pleurobranchoidea (Superfamily)
> Pleurobranchidae (Family)
> Berthella (Genus)
> medietas (Species)
Genus Synonyms:
=Berthellinops Burn, 1962
=Bouvieria Vayssière, 1897
=Cleanthus Leach, 1847
=Gymnotoplax Pilsbry, 1896
=Pleurobranchus (Bouvieria) Vayssière, 1897
Images: Berthella medietas Burn, 1962
Low tide under rock, Henderson Bay, Far North, NZ. 25-30mm. © rights reserved
Under a rock at low tide, Henderson Bay, Far North, NZ. 20-30mm (animal). © rights reserved
Taxonomy
Family:
PLEUROBRANCHIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Ringipleura (Subterclass)
> Nudipleura (Superorder)
> Pleurobranchida (Order)
> Pleurobranchoidea (Superfamily)
> Pleurobranchidae (Family)
> Berthella (Genus)
> medietas (Species)
Genus Synonyms:
=Berthellinops Burn, 1962
=Bouvieria Vayssière, 1897
=Cleanthus Leach, 1847
=Gymnotoplax Pilsbry, 1896
=Pleurobranchus (Bouvieria) Vayssière, 1897
Details: Berthella medietas Burn, 1962
Size/Grows to:
Length 14mm, Animal 35mm
Distribution:
Northland east coast and Chatham Islands. Also Mediterranean, Azores and western Atlantic
Notes:
Marine
View Distribution Map
References and Publications
  • Morley, M.S., Hayward, B.W. 2015 Intertidal records of 'sea slugs' (nudibranchs and allied opisthobranch gastropods) from northern North Island, New Zealand, Records of the Auckland Institute and Museum, 50 (p.64)
  • Willan, R.C. 1983 New Zealand side-gilled sea slugs (Opisthobranchia: Notaspidea: Pleurobranchidae), Malacologia, 23(2) (p.243)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.282)

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
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