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Oligosoma burganae CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON, 2011

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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Burgan skink 
SynonymOligosoma burganae CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON 2011
Leiolopisma inconspicuum PATTERSON & DAUGHERTY 1990: 66
Leiolopisma nigriplantare maccanni PATTERSON 1984
Oligosoma burganae — HITCHMOUGH et al. 2016 
DistributionNew Zealand

Type locality: Burgan Stream, Rock and Pillar Range (45° 35’S, 169° 56’E), New Zealand.  
Reproductionviviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: NMNZ RE002390/1, adult female (coll. G. Patterson, 1982). 
DiagnosisDiagnosis: Oligosoma burganae can be distinguished from other related Oligosoma species through a combi- nation of characters (Figure 4 in CHAPPLE et al. 2011). Compared to O. maccanni, O. burganae has a glossy appearance, with brown predominating whereas O. maccanni has a greyer ground colour. Oligosoma maccanni has a pale grey ventral colour rather than the yellow/grey ventral colour seen in O. burganae. The ear opening in O. maccanni often has large projecting scales on the interior margin, whereas these are often minimal or lacking altogether in O. burganae. Longitudinal striping is more pronounced in sympatric populations of O. polychroma, which almost always have a pale dorsal stripe on the outside of the forelimbs. The ear opening in O. polychroma often has prominent projecting scales on the interior margin. There are statistical differences between O. burganae and O. inconspicuum (AG/SF, HL/HW, SE/EF, SVL/HL, SVL/FLL), O. toka sp. nov. (SVL/HLL, ventral scales), O. notosaurus (ventral scales), and O. repens sp. nov. (SVL/HL, SVL/FL, AG/SF) (Figure 4). All O. inconspicuum have four supraoculars whereas most O. burganae have only three supraoculars. Oligosoma repens sp. nov. has a more elongate appearance than O. burganae (TL/SVL of 1.1 and 1.28, respectively). The number of subdigital lamellae (18–23) is greater than in O. tekakahu (16). The head of O. burganae is noticeably blunter and deeper than O. repens sp. nov. and O. toka sp. nov. (Figures 4, 7–9) [from CHAPPLE et al. 2011]. 
Comment 
EtymologyRefers to the Burgan Stream area, the type locality for the species. 
References
  • CHAPPLE, DAVID G., TRENT P. BELL, STEPHANIE N.J. CHAPPLE, KIMBERLY A. MILLER, CHARLES H. DAUGHERTY & GEOFF B. PATTERSON 2011. Phylogeography and taxonomic revision of the New Zealand cryptic skink (Oligosoma inconspicuum; Reptilia: Scincidae) species complex. Zootaxa 2782: 1–33
  • Hitchmough, Rodney A.; Geoffrey B. Patterson, and David G. Chapple 2016. Putting a Name to Diversity: Taxonomy of the New Zealand Lizard Fauna. in: Chapple, D.G. (ed). New Zealand Lizards. Springer, pp. 87-108 - get paper here
  • Winkel, D. van, Baling, M. & Hitchmough, R. 2018. Reptiles and Amphibians of New Zealand: A field guide. Auckland University Press, Auckland, 376 pp.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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