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Cyrtodactylus rex OLIVER, RICHARDS, MUMPUNI & RÖSLER, 2016

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common Names 
SynonymCyrtodactylus rex OLIVER, RICHARDS, MUMPUNI & RÖSLER 2016 
DistributionPapua New Guinea (East Sepik Province)

Type locality: Papua New Guinea, East Sepik Province, un-named camp in Sepik River basin, (4°24'14"S, 142°17'33"E, 55 m elevation)  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: SAMA R67636 (Field number SJR13190), adult female, collected by S. Richards, 1 March 2011, tissue stored in ethanol at the South Australian Museum ABTC114693. Paratypes (n =19). Papua New Guinea: SAMA R67637 (SJR13011) Sandaun Province, Sepik River Basin, un-named camp (4°43'39"S, 141°47'08"E, 425 m a.s.l.), collected by S. Richards on 20 February 2010; BPBM 11522 Morobe Province, Oomsis Forestry Camp (6°41'54.1278"S, 146°48'56.412"E, 400 m a.s.l), collected by A. Allison 3 March 1988; BPBM 18655 Morobe Province, 8.4 km W of Mt Shun- gol summit (6°47'40.56"S, 146°40'49.98"E, 420 m a.s.l.), collected by F. Kraus 23 October 2003; BPBM 34719 Madang Province, Samorek village (4°42'38.0412"S, 145°24'51.3714"E, 690 m a.s.l.), collected by F. Kraus 1 October 2009; BPBM 34747 East Sepik Province, Joromba River, 16.25 km W of Wewak (3°34.732'S, 143°30.020'E, 227 m a.s.l.), collected by F. Kraus 25 September 2009; AMS R13025 Morobe Province, Lae (6°44'S, 147°00'E), collected by E.L. Troughton 18 May 1945; AMS R31940 Morobe Province, Lae Botanic Gardens (6°44'S, 147°00'E), collected by E.L. Troughton 5 September 1969; AMS R129290 East Sepik Province, Maprik (3°25'S, 143°02'E), collected by W.H. Ewers 5 November 1964; AMS R119548–50 Sandaun Province, Torricelli Mts,Wigote (3°39'S, 142°09'E), collected by T. Flannery 22 July 1985; AMNH 92341–2 Morobe Province, Oomsis Creek (6°41'S, 146°48'E), collected by H.M. Van Deusen April 1959; AMNH 95165–8 Morobe Province, Lae (6°44'S, 147°00'E); AMNH 95169 Morobe Province, Busu River, 8 mi. N of Lae; AMNH 95170 Morobe Province, 13 mi. N of Lae, previous six specimens collected by R. Zweifel & G. Sluder July–August 1964. 
DiagnosisDiagnosis: A very large Cyrtodactylus (SVL to 172 mm), with a very broad head (HW/SVL 0.20–0.24), enlarged tubercles across the infra-angular region and often extending across the throat, mid-dorsal tubercles in 21 to 27 rows at midpoint of body, subcaudal scales not transversely widened, high number of mid-body ventral scales in transverse series (49–60), moderate number of femoral and precloacal pores (20–38) in a nearly continuous chevron, narrow dark brown barring on the throat, labials and often venter, and dorsal colour pattern on torso including indistinctly defined alternating dark-brown, medium-brown and whitish regions.


Additional details (2543 characters) are available for collaborators and contributors. Please contact us for details. 
CommentDistribution: see map in Oliver et al. 2016: 120. 
EtymologyFrom the latin for king as it is the largest of the over 200 species of Cyrtodactylus, and amongst the largest of all known geckos (Bauer 2013). 
References
  • Grismer, L. L., Wood, P. L., Poyarkov, N. A., Le, M. D., Kraus, F., Agarwal, I., ... & Grismer, J. L. 2021. Phylogenetic partitioning of the third-largest vertebrate genus in the world, Cyrtodactylus Gray, 1827 (Reptilia; Squamata; Gekkonidae) and its relevance to taxonomy and conservation. Vertebrate Zoology 71: 101–154 - get paper here
  • Kwet, Axel 2017. Neue Arten: Liste der im Jahr 2016 neu beschriebenen Reptilien. Terraria-Elaphe 2017 (3): 54-70 - get paper here
  • Oliver PM, Richards SJ, Mumpuni, Rösler H 2016. The Knight and the King: two new species of giant bent- toed gecko (Cyrtodactylus, Gekkonidae, Squamata) from northern New Guinea, with comments. ZooKeys 562: 105–130, doi: 10.3897/zookeys.562.6052 - 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
 
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