The narrow-bodied skink, Oligosoma gracilicorpus, is a species of skink

Skink

Skinks are lizards belonging to the family Scincidae. Together with several other lizard families, including Lacertidae , they comprise the superfamily or infraorder Scincomorpha...

 in the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Scincidae. Only the holotype

Holotype

A holotype is a single physical example of an organism, known to have been used when the species was formally described. It is either the single such physical example or one of several such, but explicitly designated as the holotype...

 specimen (AIM Rep 31.1) is known, collected before 1955 on the North Island

North Island

The North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...

 of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, probably in the vicinity of the Hokianga

Hokianga

Hokianga is an area surrounding the Hokianga Harbour, also known as The Hokianga River, a long estuarine drowned valley on the west coast in the north of the North Island of New Zealand....

; it is possibly a juvenile. If so, this species could be the kawekaweau or kaweau (sometimes written koeau) of Māori

Maori language

Māori or te reo Māori , commonly te reo , is the language of the indigenous population of New Zealand, the Māori. It has the status of an official language in New Zealand...

 lore, which by others is identified with a tuatara

Tuatara

The tuatara is a reptile endemic to New Zealand which, though it resembles most lizards, is actually part of a distinct lineage, order Sphenodontia. The two species of tuatara are the only surviving members of its order, which flourished around 200 million years ago. Their most recent common...

 though its description does not match that animal well.(Hardy 1977)

Classified as "data deficient" by the IUCN (ARAG 1996), the New Zealand Department of Conservation

New Zealand Department of Conservation

The Department of Conservation , commonly known by its acronym, "DOC", is the state sector organisation which deals with the conservation of New Zealand’s natural and historic heritage...

 treats it as extinct.