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Oligosoma kahurangi PATTERSON & HITCHMOUGH, 2021

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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymOligosoma kahurangi PATTERSON & HITCHMOUGH 2021 
DistributionNew Zealand (South Island)

Type locality: Douglas Range, South Island, New Zealand; 41° 05’S, 172° 35’E  
Reproduction 
TypesHolotype. NMNZ RE008602 (adult male); coll. A. Milne, 25 Nov 2019.
Paratypes (2 specimens). NMNZ RE008604 (adult female); same collection data as holotype; NMNZ RE008603 (adult male); same collection data as holotype. 
DiagnosisDiagnosis: O. kahurangi sp. nov. can be distinguished from other species in the genus Oligosoma by a combination of characters. These are: (a) interrupted subocular scale row; (b) unmarked cream ventral surface; (c) ITL >1.5 SVL; (d) MS >35; (e) clearly visible pale iris; (f) brown ground colour. It is most similar to O. longipes Patterson, O. hoparatea Whitaker et al., and O. maccanni (Patterson & Daugherty). It differs from O. longipes in having a median dorsal stripe which is either intact or broken (this is usually absent in O. longipes and where present has a herring-bone appearance not seen in O. kahurangi sp. nov.). There is no overlap in MS between O. kahurangi sp. nov. (36–38) and O. longipes (40–44) and O. hoparatea (40–43). Although very few individuals of each species have been observed, O. hoparatea appears to be a more robust animal than O. kahurangi (Figures 4 and 7) and is substantially larger (maximum observed SVL is 91 mm in O. hoparatea compared with 69.9 mm in O. kahurangi sp. nov.; this equates to O. hoparatea being almost double the body mass of O. kahurangi sp. nov). Compared with O. maccanni the dorsal surface is 8 scale rows wide (6 in O. maccanni) and the digits and tail are proportionally longer relative to SVL in O. kahurangi sp. nov. compared with O. maccanni.
O. kahurangi sp. nov. is found in high alpine (above 1400m) slate rock scree in a mountainous region with high rainfall and appears absent from nearby greywacke screes, whereas O. longipes occupies greywacke river terraces and screes at a wide range of altitudes in semi-arid inland basins in the rain-shadow of the South Island axial ranges.


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Commentonly minimal information provided as authors have not returned details upon request. 
EtymologyNamed for Kahurangi National Park where the species is found. The name was decided in consultation with Manawhenua Ki Mohua. Recommended common name is the Kahurangi skink. 
References
  • PATTERSON, G. B., & HITCHMOUGH, R. A. 2021. A new alpine skink species (Scincidae: Eugongylinae: Oligosoma) from Kahurangi National Park, New Zealand. Zootaxa 4920 (4): 495-508 - get paper here
 
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