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Diporiphora convergens STORR, 1974

IUCN Red List - Diporiphora convergens - Data Deficient, DD
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Higher TaxaAgamidae (Amphibolurinae), Sauria, Iguania, Squamata (lizards)
Subspecies 
Common NamesE: Crystal Creek Two-line Dragon 
SynonymDiporiphora convergens STORR 1974: 133
Diporiphora convergens — COGGER 1983
Diporiphora convergens — COGGER 2000: 330
Diporiphora convergens — WILSON & SWAN 2010
Diporiphora convergens — CHAPPLE et al. 2019: 76 
DistributionAustralia (Western Australia)

Type locality: Crystal Creek, in 14° 30’ S, 125° 47’ E, W. A.  
Reproductionoviparous 
TypesHolotype: WAM R42931; collected by Messrs N. McNally and C. Pollett in May 1972. 
DiagnosisDiagnosis: A small, long-legged Diporiphora with gular and scapular folds but no postauricular fold; distinguishable from all other species by keels of dorsal scales converging on midline.


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CommentAbundance: only known from the type specimen, collected in 1972 (Meiri et al. 2017).

Status: a reasonably generic Diporiphora with converging dorsal scales - we have compared all the other 'new' species described around the area but none have the converging scales. So there are two options - it is just a strange small specimen of one an existing species or it really is a valid species but just one specimen ever seen. (J. Melville, pers. comm. 13 Feb 2026) 
EtymologyFrom the Latin verb convergo (to converge) plus the incipient suffix -ens, with reference to the keels of the dorsal scales converging on the midline. (G. Shea, pers. comm., 9 Feb 2024) 
References
  • Chapple, David G.; Reid Tingley, Nicola J. Mitchell, Stewart L. Macdonald, J. Scott Keogh, Glenn M. Shea, Philip Bowles, Neil A. Cox, John C. Z. Woinarski 2019. The Action Plan for Australian Lizards and Snakes 2017. CSIRO, 663 pp. DOI: 10.1071/9781486309474 - get paper here
  • Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp. - get paper here
  • Cogger, H.G. 2000. Reptiles and Amphibians of Australia, 6th ed. Ralph Curtis Publishing, Sanibel Island, 808 pp.
  • Ellis, Ryan J. 2019. An annotated type catalogue of the dragon lizards (Reptilia: Squamata: Agamidae) in the collection of the Western Australian Museum. Records of the Western Australian Museum 34: 115–132 - get paper here
  • 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 24 (2): 262-273 - get paper here
  • Storr, G. M. 1974. Agamid lizards of the genera Caimanops, Physignathus and Diporiphora in Western Australia and Northern Territory. Rec. West. Aust. Mus. 3: 121-146 - get paper here
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
 
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