Cantuaria minor is a species of trapdoor spider endemic to New Zealand.[1]
This species was described in 1968 by Ray Forster from a single male specimen collected in Stewart Island. The holotype is stored at Otago Museum.
The male is recorded at 9.3mm in length. The carapace and legs are orange brown. The abdomen is pale brown with black chevrons dorsally.
This species is only known from Oban in Stewart Island, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as Data Deficient with the qualifiers of "Data Poor: Size" and "Data Poor: Trend".[2]