Hardy's skink

Hardy's skink (Oligosoma hardyi) is a species of skink, a lizard in the family Scincidae. The species is endemic to the Poor Knights Islands of New Zealand.

Hardy's skink
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Oligosoma
Species:
O. hardyi
Binomial name
Oligosoma hardyi
Chapple et al., 2008[1]
Synonyms[1]
  • Cyclodina aenea
    Girard, 1857 (part)
  • Cyclodina aenea
    — Hardy, 1977 (part)
  • Cyclodina hardyi
    Chapple et al., 2008
  • Oligosoma hardyi
    — Chapple et al., 2009

Etymology

The specific name, hardyi, is in honor of Kiwi herpetologist Graham S. Hardy.[2]

Geographic range

In the Poor Knights Islands, O. hardyi occurs on Tawhiti Rahi Island, Aorangi Island, Aorangaia Island, Archway Island, and two rock stacks (Stack “B,” Stack “C”).

Taxonomy

O. hardyi closely resembles the copper skink, Cyclodina aenea, and was considered to be a member of this species until recently when it was described as a new species using morphological, allozyme and DNA methods (Chapple et al. 2008). More recently, the genus Cyclodina was merged with the genus Oligosoma (Chapple et al. 2009), resulting in a new combination for this species, Oligosoma hardyi.

Habitat and behaviour

O. hardyi is most commonly found in areas where there is ground cover near flax and scrub habitat. It is crepuscular, seeking refuge during the day under stones or thick vegetation.

Description

O. hardyi can be distinguished from all other Oligosoma species, including the other members of the O. aeneum species complex, by having suboculars three and four separated by the fifth supralabial under the eye. In addition, the midbody scale count is greater than that of the slight skink (Oligosoma levidensum) from the Te Paki region.

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References
  1. "Oligosoma hardyi ". The Reptile Database. www.reptile-database.org.
  2. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Cyclodina hardyi, p. 116).

Further reading
  • Chapple DG, Patterson GB, Bell TP, Daugherty CH (2008). "Taxonomic Revision of the Copper Skink (Cyclodina aenea, Squamata, Scincidea) Species Complex with descriptions of two new species". Journal of Herpetology 42 (3): 437 – 452. (Cyclodina hardyi, new species).
  • Chapple DG, Ritchie PA, Daugherty CH (2009). "Origin, diversification, and systematics of the New Zealand skink fauna (Reptilia: Scincidae)". Molecular Phylogenetics and Evolution 52 (2): 470-487. (Oligosoma hardyi, new combination).
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