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FIGURE 10. Adult D in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 10. Adult D. hebesa sp. nov. photographed in life from (A) Scaddan and (B) Mettler Lake, Western Australia (images‒B. Maryan).

FIGURE 12 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 12. The habitat of D. hebesa sp. nov., dense scrub heath on sandplain at Stirling Range National Park, Western Australia (image‒B. Maryan).

FIGURE 9. Preserved holotype WAM R144237 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 9. Preserved holotype WAM R144237 of D. hebesa sp. nov. and head scalation in (A) dorsal and (B) lateral views.

FIGURE 8 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 8. Map of Australia showing distribution of the D. australis species-group and specimens examined in the DNA and allozyme analyses. Specimens examined in the morphological analysis are indicated by a symbol with a central dot.

FIGURE 2 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 2. Principal Coordinates Analysis of the 48 individuals surveyed in the allozyme study. The relative PCO scores have been plotted for the first and second dimensions, which individually explained 37% and 12% respectively of the total multivariate variation present in 47 dimensions. Taxon symbols as for Figure 8.

FIGURE 1 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 1. Maximum likelihood tree based on the combined mitochondrial (ND2 and flanking tRNAs, 16S) and nuclear genes (RAG1, MXRA5, DYNLL1, C-mos) showing relationships among the D. australis species-group, and the outgroup species D. butleri and D. concinna. This tree highlights the paraphyly of D. australis sensu lato, with respect to D. torquata, and identifies D. hebesa sp. nov. as sister taxa to a D. australis + D. torquata clade. Values indicated at branches are Bayesian posterior probabilities/ maximum likelihood bootstrap support.

FIGURE 4 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 4. Bivariate plot of number of ventral scales versus number of hindlimb scales in males and females of each of the southwest W.A. population of D. australis and D. hebesa sp. nov.

FIGURE 7. Adult D in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 7. Adult D. australis photographed in life from (A) Cowell, Eyre Peninsula, South Australia, (B) 14 km NW of Coober Pedy, South Australia, (C) Buningonia Spring, Coolgardie Goldfields bioregion, Western Australia, (D) 30 km NW of Salmon Gums, Mallee bioregion, Western Australia, (E) Rat Island, Houtman Abrolhos, Western Australia, (F) 22 km WSW of Hamelin Homestead, Shark Bay and (G) Cape Range, North West Cape, Western Australia, showing the variation in body colouration and intensity of head pattern (images‒A, B, C, E, F, G: B. Maryan, D: R. Lloyd).

FIGURE 3 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 3. Unrooted neighbour-joining network among six species or lineages of Delma, based on the pairwise matrix of unbiased Nei's distances presented in Table 4.

FIGURE 5 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 5. Bivariate plot of measurements of head length versus head depth in males and females of each of the southwest W.A. population of D. australis and D. hebesa sp. nov.

FIGURE 6. Preserved holotype WAM R27359 in Molecular and morphological assessment of Delma australis Kluge (Squamata: Pygopodidae), with a description of a new species from the biodiversity ' hotspot' of southwestern Western Australia

FIGURE 6. Preserved holotype WAM R27359 of D. australis and head scalation in (A) dorsal and (B) lateral views; F = frontals, L = loreals, LL = lower labials, M = mental, O = occipital, P = parietals, PN = postnasals, PF = prefrontals, R = rostral, SP = supraciliaries, SL = supraloreals, SN = supranasals, SO = supraoculars, UL = upper labials, T = upper temporals.

FIGURE 2 in A new species of Delma Gray 1831 (Squamata: Pygopodidae) from the Hunter Valley and Liverpool Plains of New South Wales

FIGURE 2. SNP variation in Delma, A) PCoA ordination of SNP diversity, B) STRUCTURE barplots show preference for K = 2 model, with little distinction between Delma impar north and south populations.

FIGURE 5 in A new species of Delma Gray 1831 (Squamata: Pygopodidae) from the Hunter Valley and Liverpool Plains of New South Wales

FIGURE 5. Distribution of samples analyzed for morphological (A) or molecular (B and C) comparisons this study.

FIGURE 4 in A new species of Delma Gray 1831 (Squamata: Pygopodidae) from the Hunter Valley and Liverpool Plains of New South Wales

FIGURE 4. Photos in life of Delma vescolineata sp. nov. (A–D), Delma impar (E–F), Delma plebeia (G), Delma inornata (H); A) AMS R.186619, Jerrys Plains NSW, B) AMS R.185999, Muswellbrook NSW, C) Not collected, Muswellbrook NSW, D) Not collected, Juvenile, Muswellbrook NSW, E) Not collected, Cooma NSW, F) Not collected, Naracoorte SA, G) Not collected, Muswellbrook NSW, H) Not collected, Canberra ACT.

FIGURE 3 in A new species of Delma Gray 1831 (Squamata: Pygopodidae) from the Hunter Valley and Liverpool Plains of New South Wales

FIGURE 3. Holotype (AMS R.185998) of Delma vescolineata sp. nov., A) in life, B) lateral view of head, C) dorsal view of head, D) labelled lateral scale illustration of head, E) labelled dorsal scale illustration of head. R = rostral, IN = internasal, SL = supralabials, IL = infralabials, PN = postnasal, L = loreal, FN = frontonasal, PF = prefrontal, SC = supraciliary, SO = supraocular, RF = rostral frontal, CF = caudal frontal, PT = pretemporal, P = parietal, T = temporal, O = occipital.