Genus: Sphenodon GRAY, 1872 (Living)
Etymology:
= Hatteria GRAY, 1872
Etymology:
= Rhynchocephalus OWEN, 1845
Etymology:
= Sphaenodon GRAY, 1881 (sic)

Species: punctatus punctatus (GRAY 1931)
Etymology:
= Sphenodon punctatus GRAY, 1872
Etymology:

Holotype:

Locality: 24 islands in Hauraki Gulf and Bay of Plenty, plus four islands in Cook Strait that probably warrant separate subspecific recognition, New Zealand.

Horizon: Living.
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Species: punctatus reischeki WETTSTEIN, 1943 (Living?)
Etymology:

Holotype:

Locality: Possibly surviving on Little Barrier Island, Hauraki Gulf, New Zealand.

Horizon: Living.
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Species: guntheri Buller, 1877 (Living)
Etymology:

Holotype:

Locality: North Brother Island, Cook Strait, New Zealand.

Horizon: Living.
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Species: diversum Colenso, 1886 (Extinct)
Etymology:

Holotype:

Locality: East Coast of North Island, New Zealand.

Horizon: Holocene.

Material: Fragmentary skeletons.