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Emoia oriva ZUG, 2012

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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Common Names 
SynonymEmoia oriva ZUG 2012 
DistributionFiji Islands (Rotuma)

Type locality: Fiji, Rotuma, 1.0–2.0 km south of Ropuri (12°29’S, 177°04’E).  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: USNM 268307, adult male, collected 22 May 1986 by G. R. Zug. Paratypes: USNM 
DiagnosisDiagnosis: Emoia oriva is a member of the Emoia samoensis species group and the samoensis subgroup (Zug et al. 2012). It differs from other subgroup members by a combination of traits. E. oriva females and males average smaller (mean 82 mm, range 75–85 mm SVL; 84 mm, 73–90 mm, respectively [Table 1]) than all other subgroup members, except equally sized E. tuitarere (female & male means 81mm&84mm):E.Tongansp(96mm & 97 mm), E. samoensis (97 mm & 100 mm), E. sanfordi (103 mm & 102 mm), and E. trossula type-series (90 mm & 91 mm). In scalation, E. oriva averages more dorsal scales [Dorsal] (median 70, 58–77) than other subgroup members: E. Tonga nsp (65, 58–72), E. samoensis (63.5, 60–68), E. sanfordi (58, 56–61), E. trossula type-series (65, 59–71), and E. tuitarere (64, 60–69); E. oriva usually has more scales around midbody [Midbody] (33–38) than E. Tonga nsp (30–36), E. samoensis (30–34), E. sanfordi (30–32), E. trossula type-series (31–36), and E. tuitarere (32–35); only E. sanfordi (47 & 66) exceeds E. oriva (38 & 56) in number of lamellae beneath the fourth digits of fore- and hindfeet (4FingLm & 4ToeLm, see Table 2), other subgroup members have fewer lamellae. Character abbreviations detailed in preceding Methods and Abbreviations section [from ZUG 2012]. 
CommentAbundance: only known from its original description (Meiri et al. 2017). 
EtymologyThe specific name oriva derives from ‘oriva’, one of three Rotuman words for lizard. It is proposed as a noun in apposition. 
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • 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
  • Zug, G.R. 2012. A new species of treeskink (Squamata: Scincidae: Emoia samoensis species group) from Rotuma, south-central Pacific. Proceedings of the Biological Society of Washington 125(1):74-84 - get paper here
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