Oligosoma infrapunctatum

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Oligosoma infrapunctatum
Oligosoma infrapunctatum imported from iNaturalist photo 1668963 on 23 June 2020.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Oligosoma
Species:
O. infrapunctatum
Binomial name
Oligosoma infrapunctatum
(Boulenger, 1887)

Oligosoma infrapunctatum, the speckled skink, is a species of skink in the family Scincidae. It is endemic to New Zealand. [1]

Contents

The speckled skink is classified under the New Zealand Threat Classification System as being in 'gradual decline'. [2] However, evidence indicates that this classification refers to a complex of closely related species, and the actual O. infrapunctatum may be highly endangered or even extinct. [3] [1]

Distribution

Oligosoma infrapunctatum is a widespread but patchily distributed skink with a distribution spanning the North Island from the Bay of Plenty south, and the South Island in the Marlborough Sounds, Nelson and Westland regions. It occurs in open forest, scrubland and tussock grassland from sea level to the subalpine zone, [4] on boulder beaches in the Westland region of the South Island [5] and occasionally in farmland and other modified habitats. [5]

Biogeography

The speckled skink. Oligosoma infrapunctatum imported from iNaturalist photo 1668965 on 23 June 2020.jpg
The speckled skink.

Recent genetic studies showed deep genetic divisions within O. infrapunctatum indicating that it is probably a complex of cryptic species which diverged in the Pliocene. [6] A recent paper showed that Oligosoma infrapunctatum could be extinct, and that the widespread species in the Oligosoma infrapunctatum group should be called Oligosoma newmani [3]

Related Research Articles

<i>Oligosoma</i> Genus of lizards

Oligosoma is a genus of small to medium-sized skinks found only in New Zealand as well as Norfolk and Lord Howe islands. Oligosoma had previously been found to belong to the Eugongylus group of genera in the subfamily Lygosominae; the Australian genus Bassiana appears to be fairly closely related.

The long-toed skink is a species of skink of the family Scincidae, endemic to New Zealand. It was first described by Geoff Patterson in 1997. It is only known from a few sites in the South Island of New Zealand and little is known of its habits. It seems to prefer dry, rocky habitats, usually eroding stream terraces or scree slopes. It is diurnal and heliothermic. Maximum snout-vent length is about 70 mm.

Scree skink Species of lizard

The Scree skink is a species of skink native to several sites throughout the South Island of New Zealand. A member of the family Scincidae, it was described by Geoff Patterson in 1997. It favours rocky habitats, particularly greywacke screes. Threats to scree skinks include predation by introduced mammals, weed encroachment, human interference and severe flood events.

Robust skink Species of reptile

The robust skink, Oligosoma alani, is a large, rare species of lizard in the family Scincidae. The species is endemic to New Zealand.

Whitakers skink Species of lizard

Whitaker's skink, also known commonly as Whitaker's New Zealand skink, is an endangered species of skink, a lizard in the family Scincidae. The species is found only in New Zealand.

<i>Oligosoma homalonotum</i> Species of lizard

The chevron skink, is a large species of skink endemic to New Zealand, found only on Great and Little Barrier islands in the Hauraki Gulf. A cryptic forest dweller, it can hide underwater, and is under threat from introduced rats.

The small-scaled skink is a species of skink in the family Scincidae. It is endemic to New Zealand. The holotype is in the collection of the Museum of New Zealand Te Papa Tongarewa.

<i>Oligosoma notosaurus</i> Species of lizard

The southern skink is a species of skink in the family Scincidae. It is endemic to New Zealand.

Oligosoma taumakae, the Open Bay Island(s) skink, or Taumaka skink, is a species of skink. It was described from the Open Bay Islands, off the west coast of the South Island of New Zealand.

The slight skink is a skink of the family Scincidae, endemic to the far north of the North Island of New Zealand. The precise distribution is unknown; currently it is only known from localities in the Te Paki region of Northland. It closely resembles the copper skink, Oligosoma aeneum, 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. O. levidensum is difficult to distinguish morphologically from O. aeneum, which is probably why it had not been recognised until recently. The main distinguishing feature is the slighter overall body form of O. levidensum compared to O. aeneum. The limbs of O. levidensum are reduced compared to O. aeneum and O. hardyi, the other members of the O. aeneum complex.

The ornate skink, Oligosoma ornata, is a rare species of skink endemic to New Zealand. This species was once widespread through much of the North Island and on many offshore islands in the Hauraki Gulf and north of the Coromandel Peninsula. Habitat destruction and predation by introduced species has now reduced their range to scattered localities throughout the North Island as far south as Wellington, as well as on the Three Kings Islands, Great Barrier Island, and a few other offshore islands.

The Barrier skink is a species of medium-sized skink, a lizard in the family Scincidae. The species is endemic to New Zealand, where it lives in the alpine habitat of the Darran and Takitimu Mountains of Fiordland. It is one of only two species of New Zealand skinks that live exclusively in the alpine zone, the other being the "Sinbad skink", Oligosoma pikitanga, a closely related species of similar appearance which is found in the same part of the South Island. The Barrier skink was first collected in the 1960s but was overlooked until rediscovery by a pair of mountain climbers in 2005; the species was scientifically described in 2009.

Te Kakahu skink Species of lizard

The Te Kakahu skink is a critically endangered species of skink native to New Zealand. When discovered, the entire species was inhabiting a single patch of clifftop vegetation on Chalky Island in Fiordland National Park.

Burgan skink Species of lizard

The Burgan skink is a nationally endangered species of skink native to New Zealand. It was described from a specimen found near the Burgan Stream, in the Rock and Pillar Range, Central Otago.

Cryptic skink Species of lizard

The cryptic skink is a nationally vulnerable species of skink native to New Zealand.

New Zealand spotted skink Species of lizard

The spotted skink is a nationally at risk species of skink native to New Zealand. The Spotted skink is currently known to be present in the Hawkes Bay, Wairarapa and Wellington regions as well as in Nelson, Marlborough and Canterbury. It is also present on Somes Island, Mākaro / Ward Island, North Brother Island and Stephens Island. Adult males and adult females of the species significantly differ in the snout-vent length with body sizes reaching 111mm. Females produce around 3 - 4 young.

Brown skink Species of lizard

The brown skink is a species of skink native to New Zealand.

The cobble skink in the family Scincidae is a skink species endemic to New Zealand, found only on a single small stretch of stony beach at Granity, on the West Coast. In 2016 it was on the brink of extinction, with declining numbers and a threatened habitat, and all known individuals were captured and taken to Auckland Zoo.

<i>Oligosoma albornense</i> Species of skink endemic to New Zealand

The Alborn skink is a critically endangered and poorly known species of skink only found in a single 2 ha site near Reefton, New Zealand. It is classified as "Nationally Critical" by the Department of Conservation under the New Zealand Threat Classification System.

<i>Oligosoma salmo</i> Species of lizard

The Chesterfield or Kapitia skink is a species of skink found in New Zealand. Only discovered in 1994 and for years not recognised as a distinct species, it is endemic to a narrow 1 km strip of coastal vegetation on the West Coast of New Zealand, 15 km north of Hokitika. There are fewer than 200 individuals remaining in the wild. Oligosoma salmo is the only New Zealand skink with a prehensile tail, suggesting it was once arboreal and inhabited coastal forest, which was subsequently cleared for dairy farming. Following the partial destruction of its remaining habitat in 2018 by a cyclone, a small captive breeding population was established at Auckland Zoo.

References

  1. 1 2 3 Hitchmough, R. (2021). "Oligosoma infrapunctatum". IUCN Red List of Threatened Species . 2021: e.T156731593A120191280. Retrieved 5 September 2021.
  2. New Zealand Threat Classification System lists 2005, Hitchmough, R.; Bull, L.; Cromarty, P. (comps) (2007) Department of Conservation, Wellington. 194 p.
  3. 1 2 Melzer, S.; Hitchmough, R.A.; Bell, T.; Chapple, D.G.; Patterson, G.B. (2019) Lost and Found: Taxonomic revision of the speckled skink (Oligosoma infrapunctatum; Reptilia; Scincidae) species complex from New Zealand reveals a potential cryptic extinction, resurrection of two species, and description of three new species. Zootaxa 4623(3): 441-484.
  4. Gill, B. & Whitaker, T. (2001) New Zealand frogs and reptiles. David Bateman, Auckland.
  5. 1 2 Whitaker, A.H. & Lyall, J. (2004) Conservation of lizards in West Coast/Tai Poutini Conservancy. Technical Report, Department of Conservation, Wellington.
  6. Greaves et al. 2008 Genetic divergences pre-date Pleistocene glacial cycles in the New Zealand speckled skink, Oligosoma infrapunctatum Journal of Biogeography (J. Biogeogr.) (2008) 35, 853–864