Pseudonaja inframacula (WAITE, 1925)
Can you confirm these amateur observations of Pseudonaja inframacula?
Pseudonaja inframacula
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| Higher Taxa | Elapidae (Hydrophiinae), Elapoidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Peninsula Brown Snake |
| Synonym | Demansia textilis inframacula WAITE 1925: 26 Pseudonaja textilis inframacula WORRELL 1963 Pseudonaja affinis inframacula STORR 1986 Pseudonaja textilis — COGGER 1983: 234 Pseudonaja inframacula — COGGER 1992 Pseudonaja textilis inframacula — WELCH 1994: 105 Pseudonaja inframacula — COGGER 2000: 670 Euprepiosoma inframacula — WELLS 2002 Pseudonaja inframacula — WILSON & SWAN 2010 Pseudonaja inframacula — WALLACH et al. 2014: 604 Pseudonaja inframacula — MIRTSCHIN et al. 2017 Pseudonaja inframacula — EIPPER & EIPPER 2024: 194 |
| Distribution | Australia (Southern Eyre Peninsula and southern Yorke Peninsula; geographically isolated populations occur near Nullarbor Station, west of Eyre Peninsula and on the North Neptunes and Wardang Island, Spencer Gulf) Type locality: N end of Coffin's Bay Peninsula, on W coast of Eyre Peninsula, S. A.; not included in Houston (1976). |
| Reproduction | oviparous |
| Types | Syntypes: SAMA (2 specimens, not found and thus possibly lost, fide Cogger 1983) |
| Diagnosis | Diagnosis: Pseudonaja inframacula may be distinguished from the remaining species of Pseudonaja redescribed here in exhibiting a medium to dark grey venter (very occasionally, only the throat is dark grey in specimens from Yorke Peninsula) and a diploid chromosome number of 36. The relative length of the prefrontal suture (i.e. the length of the prefrontal suture divided by head length) and the relative distance from the rostral to the frontal are consistently higher than for P. nuchalis specimens (0.078–0.125 vs. 0.050–0.070 and 0.143–0.195 vs. 0.096–0.124, respectively; see Table 9). Pseudonaja inframacula usually has fewer ventrals than P. affinis and P. aspidorhyncha. (SKINNER 2009) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data. However, these details, e.g. detailed descriptions (about about .77 pages) are available for collaborators and contributors. Please contact us if you need any of this material. |
| Comment | Venomous! Karyotype: Mengden (1985) and Skinner et al. (2005) reported a diploid chromosome number of 36, with autosome pairs 4–17 being separable into two distinct size classes, and sex chromosomes that differ considerably in size. Reference images: see Uetz et al. 2024 for high-resolution reference images for this species. |
| Etymology | Presumably named after the Latin infra (below) plus macula (spot) in reference to the dark ventral spotting of this species. (G. Shea, pers. comm., 9 Feb 2024) |
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