Okenia atkinsonorum

Order: Nudibranchia
Suborder: Doridina
Superfamily: Anadoridoidea
Family: Goniodorididae
Distribution: Poor Knights Islands
Occurrence: Rare in NZ
Size: 12mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Trapania brunnea

Order: Nudibranchia
Suborder: Doridina
Superfamily: Anadoridoidea
Family: Goniodorididae
Distribution: SE Australia, Northern NZ
Occurrence: Rarely seen by divers
Size: 5mm
Food: Kamptozoans
Photo Location: Poor Knights Islands

Trapania rudmani

Order: Nudibranchia
Suborder: Doridina
Superfamily: Anadoridoidea
Family: Goniodorididae
Distribution: Throughout NZ incl. Auckland Islands
Occurrence: Rarely seen by divers
Size: 8mm
Food: Kamptozoans
Photo Location: Auckland Islands
More pics: (Auckland Islands)

Polycera maddoxi

Order: Nudibranchia
Suborder: Doridina
Family: Polyceridae
Distribution: NZ
Occurrence: Rare NZ endemic
Size: 16mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Crimora multidigitalis

Order: Nudibranchia
Suborder: Doridina
Family: Polyceridae
Distribution: SE Australia, NZ
Occurrence: Rare in NZ
Size: 8mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Plocamopherus imperialis

Order: Nudibranchia
Suborder: Doridina
Family: Polyceridae
Distribution: Poor Knights Islands
Occurrence: Rarely seen, nocturnal
Size: 45mm
Food: Bryozoans
Photo Location: Poor Knights Islands

Roboastra luteolineata

Order: Nudibranchia
Suborder: Doridina
Distribution: Poor Knights Islands
Occurrence: Periodically common
Size: Up to 125mm
Food: Tambja verconis nudibranch
Photo Location: Poor Knights Islands
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Tambja morosa

Order: Nudibranchia
Suborder: Doridina
Distribution: Poor Knights Islands and Northland east coast
Occurrence: Common
Size: Up to 120mm
Food: Bugula dentata bryozoan
Photo Location: Poor Knights Islands
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Tambja tenuilineata

Order: Nudibranchia
Suborder: Doridina
Distribution: Poor Knights Islands and Northland east coast
Occurrence: Common
Size: Up to 50mm
Food: Bryozoans
Photo Location: Poor Knights Islands
Photo courtesy of Shaun Cartwright
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Tambja verconis

Order: Nudibranchia
Suborder: Doridina
Distribution: Poor Knights Islands and Northland east coast
Occurrence: Common
Size: Up to 100mm
Food: Bugula dentata bryozoan
Photo Location: Poor Knights Islands
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Aphelodoris luctuosa

Order: Nudibranchia
Suborder: Doridina
Distribution: Three Kings to Fiordland
Occurrence: Common
Size: Up to 75mm
Food: Sponges
Photo Location: Poor Knights Islands

Atagema carinata

Order: Nudibranchia
Suborder: Doridina
Distribution: NZ
Occurrence: Lower North Island to Auckland Islands and Campbell Island
Size: 40mm
Food: Sponges
Photo Location: Dusky Sound, Fiordland
More pics: (Auckland Islands)

Doris cameroni

Order: Nudibranchia
Suborder: Doridina
Distribution: ?
Occurrence: ?
Size: 7mm
Food: ?
Photo Location: Poor Knights Islands

Halgerda willeyi

Order: Nudibranchia
Suborder: Doridina
Distribution: Not known from NZ waters other than Kermadec Islands, Tropical Indo-West Pacific
Occurrence: ?
Size: 45mm
Food: Sponges
Photo Location: Raoul Island, Kermadec Islands

Archidoris wellingtonensis

Order: Nudibranchia
Suborder: Doridina
Distribution: Throughout NZ
Occurrence: Common
Size: Up to 200mm
Food: Sponges
Photo Location: Fiordland
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Cadlina willani

Order: Nudibranchia
Suborder: Doridina
Distribution: Three Kings to Fiordland
Occurrence: Common
Size: Up to 20mm
Food: Sponges
Photo Location: Mercury Islands

Ceratosoma ameonum

Order: Nudibranchia
Suborder: Doridina
Distribution: Three Kings to Fiordland
Occurrence: Common
Size: Up to 60mm
Food: Sponges
Photo Location: Hahei, Coromandel

Chromodoris aureomarginata

Order: Nudibranchia
Suborder: Doridina
Distribution: Throughout NZ
Occurrence: Commonly seen at night, uncommon during the day
Size: 30mm
Food: Sponges
Photo Location: Bradshaw Sound, Fiordland
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Hypselodoris kaname

Order: Nudibranchia
Suborder: Doridina
Distribution: Poor Knights Islands
Occurrence: Rare in NZ
Size: 50mm
Food: Sponges
Photo Location: Poor Knights Islands

Dendrodoris citrina

Order: Nudibranchia
Suborder: Doridina
Distribution: Throughout NZ
Occurrence: Common
Size: Up to 65mm
Food: Sponges
Photo Location: Goat Island Marine Reserve
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Dendrodoris denisoni

Order: Nudibranchia
Suborder: Doridina
Distribution: Three Kings to Fiordland
Occurrence: Common
Size: Up to 80mm
Food: Sponges
Photo Location: Poor Knights Islands
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Phyllidiella pustulosa

Order: Nudibranchia
Suborder: Doridina
Distribution: Not known from NZ waters other than Kermadec Islands, Tropical Indo-West Pacific
Occurrence: Common at Kermadec Islands
Size: 35mm
Food: Sponges
Photo Location: Raoul Island, Kermadec Islands

Tritonia flemingi

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ?
Occurrence: Uncommon
Size: 15mm
Food: Soft coral
Photo Location: Poor Knights Islands
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Tritonia incerta

Order: Nudibranchia
Suborder: Dendronotina
Distribution: Northern NZ
Occurrence: Common
Size: Up to 100mm
Food: Alcyonium aurantiacum soft coral
Photo Location: Middle Island, Mercury Islands

Tritonia sp. ?

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ?
Occurrence: ?
Size: 10mm
Food: Errina novaezelandia red coral
Photo Location: Long Sound, Preservation Inlet, Fiordland

Doto sp.

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ???
Occurrence: Recorded from Poor Knights Islands, Preservation Inlet and Dusky Sound, Fiordland
Size: 6mm
Food: Hydroid
Photo Location: Poor Knights Islands
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Doto sp.

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ???
Occurrence: ???
Size: 5mm
Food: Hydroid
Photo Location: Poor Knights Islands
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Doto sp.

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ???
Occurrence: ???
Size: 7mm
Food: Hydroid
Photo Location: Long Sound, Preservation Inlet, Fiordland
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Doto sp.

Order: Nudibranchia
Suborder: Dendronotina
Distribution: ???
Occurrence: ???
Size: 5mm
Food: Hydroi
Photo Location: Richard's Rock, Mercury Islands
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Caldukia rubignosa

Order: Nudibranchia
Suborder: Arminina
Distribution: ???
Occurrence: Reasonably common at The Poor Knights
Size: Up to 15mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Janolus eximius

Order: Nudibranchia
Suborder: Arminina
Distribution: Three Kings Islands, Poor Knights Islands
Occurrence: Uncommon
Size: 12mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Janolus ignis

Order: Nudibranchia
Suborder: Arminina
Distribution: Three Kings to Stewart Island
Occurrence: Commonly seen at night, rarely during the day
Size: Up to 60mm
Food: Bryozoans
Photo Location: Poor Knights Islands
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Janolus mokohinau

Order: Nudibranchia
Suborder: Arminina
Distribution: Three Kings to Stewart Island
Occurrence: Uncommon
Size: 25mm
Food: Bryozoans
Photo Location: Poor Knights Islands
Photo courtesy of Shaun Cartwright
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Janolus cf. hyalinus

Order: Nudibranchia
Suborder: Arminina
Distribution: NZ & Australia
Occurrence: ?
Size: 10mm
Food: Bryozoans
Photo Location: Poor Knights Islands

Flabellina albomarginata

Order: Nudibranchia
Suborder: Aeolidina
Distribution: Throughout NZ
Occurrence: ???
Size: 6-12mm
Food: Tubularia and other hydroids
Photo Location: Poor Knights Islands
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Tularia bractea

Order: Nudibranchia
Suborder: Aeolidina
Family: Flabellinidae
Distribution: Northeastern NZ
Occurrence: Uncommon
Size: 10mm
Food: Athecate hydroids
Photo Location: Poor Knights Islands
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Eubranchus rubeolus ?

Order: Nudibranchia
Suborder: Aeolidina
Distribution: ?
Occurrence: ?
Size: 8mm
Food: Hydroid ?
Photo Location: Passage Point, Dusky Sound, Fiordland

Protaeolidiella juliae

Order: Nudibranchia
Suborder: Aeolidina
Family: Aeolidiidae
Distribution: ?
Occurrence: Uncommon
Size: 22mm
Food: Solanderia hydroid
Photo Location: Poor Knights Islands

Spurilla macleayi

Order: Nudibranchia
Suborder: Aeolidina
Distribution: Throughout NZ, temperate Australia
Occurrence: Uncommon
Size: 8mm
Food: Sea anemones
Photo Location: Poor Knights Islands
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Babakina caprinsulensis

Order: Nudibranchia
Suborder: Aeolidina
Distribution: Northeastern NZ?
Occurrence: Rare
Size: 10mm
Food: Thecate hydroids
Photo Location: Poor Knights Islands
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Cratena lineata ?

Order: Nudibranchia
Suborder: Aeolidina
Family: Glaucidae
Distribution: ?
Occurrence: ?
Size: 10mm
Food: Thecate hydroids
Photo Location: Poor Knights Islands
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Jason mirabilis

Order: Nudibranchia
Suborder: Aeolidina
Family: Glaucidae
Distribution: Three Kings to Fiordland
Occurrence: Common
Size: Up to 65mm
Food: Solanderia hydroid
Photo Location: White Island, Bay of Plenty
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Cuthona cf. scintillans

Order: Nudibranchia
Suborder: Aeolidina
Family: Tergipedidae
Distribution: ?
Occurrence: ?
Size: 5mm
Food: Thecate hydroids
Photo Location: Poor Knights Islands
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Trinchesia sp.

Order: Nudibranchia
Suborder: Aeolidina
Family: Tergipedidae
Distribution: ?
Occurrence: ?
Size: 6mm
Food: Thecate hydroids
Photo Location: Nine Fathoms Passage, Dusky Sound, Fiordland

Trinchesia sp.

Order: Nudibranchia
Suborder: Aeolidina
Family: Tergipedidae
Distribution: ?
Occurrence: ?
Size: 7mm
Food: Thecate hydroids
Photo Location: Poor Knights Islands
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Unknown nudibranch

Order: Nudibranchia
Suborder: ?
Distribution: ?
Occurrence: ?
Size: 8mm
Food: Hydroid ?
Photo Location: Poor Knights Islands

Unknown nudibranch

Order: Nudibranchia
Suborder: ?
Distribution: ?
Occurrence: ?
Size: 12mm
Food: ???
Photo Location: Raoul Island, Kermadec Islands

Unknown nudibranch

Order: Nudibranchia
Suborder: ?
Distribution: ?
Occurrence: ?
Size: 10mm
Food: ???
Photo Location: Raoul Island, Kermadec Islands

Unknown nudibranch

Order: Nudibranchia
Suborder: ?
Distribution: ?
Occurrence: ?
Size: 10mm
Food: ?
Photo Location: Poor Knights Islands