Pseudonaja mengdeni WELLS & WELLINGTON, 1985

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Higher Taxa	Elapidae (Hydrophiinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Gwardar, Western brownsnake
Synonym	Pseudonaja mengdeni WELLS & WELLINGTON 1985 Pseudonaja kellyi WELLS & WELLINGTON 1985 Pseudonaja kellyi — WELLS 2002 Pseudonaja mengdeni — WELLS 2002 Pseudonaja mengdeni — WELLS 2002 Pseudonaja mengdeni — SKINNER 2009 Pseudonaja mengdeni — WALLACH et al. 2014: 605 Pseudonaja mengdeni — MIRTSCHIN et al. 2017 Pseudonaja mengdeni — EIPPER & EIPPER 2024: 196
Distribution	Australia (Western and central Australia, from Carnarvon, Western Australia, to Mootwingee National Park, western New South Wales) Type locality: 2 km east of Maryvale, Northern Territory.
Reproduction	oviparous (not imputed, fide Zimin et al. 2022)
Types	Holotype: NTM R1989
Diagnosis	Diagnosis: “A member of the Pseudonaja nuchalis complex, readily identified by the following combination of characters: Ventrals 212; vertebrals 217 (taken from parietals to last body scale row that contacts the the most posterior ventral); total vertebrals (body plus tail) 273; subcaudals 56 divided; anal 2; mid-body scale rows 17; body scale rows within 10 vertebrals of anal, 15; neck scale rows 19 at 10th vertebral, 17 at 10th ventral; temporal row 11; first supralabial row 13; second supralabial row 13; third supralabial row 17; supralabials 6-6, 3rd and 4th suborbital; infralabials 6-6. Measurements of Holotype (mm): Snout to vent length 820.0; vent to tail 135.0. Colouration of Holotype (in alcohol): Uniform brown on first third of dorsum, followed by a lighter brown with each scale edged with dark brown forming a distinct reticulated pattern. The head is light brown (lightest on the snout) with a darker interocular 'bar'; nape colour same as snout. There is an incomplete 'V' series of 5 jet black scales on the neck.” (Wells & Wellington 1985). Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 35 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Diemenia aspidorhyncha MCCOY 189 and Pseudonaja mengdeni WELLS & WELLINGTON 1985 have been removed from the synonymy of P. nuchalis by SKINNER 2009. Venomous!
Etymology	Named for Dr. Gregory Mengden, of the Australian Museum, Sydney in recognition of his researches on reptilian cytology.
References	Brennan, Karl E. C., Morley, Terry, Hutchinson, Mark, and Donnellan, Steve 2012. Redescription of the western desert taipan, Oxyuranus temporalis (Serpentes : Elapidae), with notes on its distribution, diet and genetic variation. Australian Journal of Zoology 59: 227–235 - get paper here Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp. - get paper here Dittmer, D. E., Chapman, T. L. & Bidwell, J. R. 2020. In the shadow of an iconic inselberg: Uluru’s shadow influences climates and reptile assemblage structure at its base. J. Arid Environ. 181, 104179 (2020) - get paper here Eipper T & Eipper S 2024. SNAKES OF AUSTRALIA. Princeton University Press, Princeton and Oxford, 368 pp. - get paper here Hallermann, J. 2020. An annotated list of reptiles and amphibians from the 1905 Hamburg expedition to southwest Australia deposited in the Zoological Museum Hamburg. Evolutionary Systematics 4: 61 - get paper here Jolly, C., Schembri, B., & Macdonald, S. 2023. Field Guide to the Reptiles of the Northern Territory. CSIRO Publishing, Melbourne - get paper here Maryan, B., Gaikhorst, G., & Parkhurst, B. 2024. The terrestrial herpetofauna of the Zuytdorp coast and hinterland of Western Australia: Exceptional richness in a global biodiversity hotspot. Western Australian Naturalist, 33, 3 Mirtschin, P., Rasmussen, A.R. & Weinstein, S.A. 2017. Australia’s Dangerous snakes. CSIRO Publishing, 424 pp. - get paper here O’Shea, M. 2018. The Book of Snakes. Ivy Press / Quarto Publishing, London, - get paper here Skinner, Adam 2009. A multivariate morphometric analysis and systematic review of Pseudonaja (Serpentes, Elapidae, Hydrophiinae). Zoological Journal of the Linnean Society 155 (1): 171-197 - get paper here Swan, G.; Sadlier, R.; Shea, G. 2017. A field guide to reptiles of New South Wales. Reed New Holland, 328 pp. Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp. Wells, R. W. and Wellington, C. R. 1985. A classification of the Amphibia and Reptilia of Australia. Australian Journal of Herpetology, Supplementary Series (1): 1-61 [sometimes cited as 1983] - get paper here Wells, Richard W. 2002. Taxonomy of the Genus Pseudonaja (Reptilia: Elapidae) in Australia. Australian Biodiversity Record (7): 1-41 Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 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
External links	IUCN Red List http://www.arod.com.au/arod/reptilia/Squamata/Elapidae/Pseudonaja/mengdeni Google images

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