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FIGURE 7 in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 7. Type locality situated in the "agreste" (dry forests) region, PARNASI, Areia Branca municipality, Sergipe State, Brazil.

FIGURE 6 in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 6. Glaucomastix itabaianensis sp. nov. (holotype; female; SVL = 60.0 mm; MZUSP 104255; PARNASI, Areia Branca municipality, Sergipe State, Brazil) in A) dorsal, B) ventral, and C) lateral view of head.

FIGURE 5 in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 5. Glaucomastix itabaianensis sp. nov. (holotype; female; SVL = 60.0 mm; MZUSP 104255; PARNASI, Areia Branca municipality, Sergipe State, Brazil) in dorsal view (color in preservative).

FIGURE 3 in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 3. Mismatch distribution, Fu's Fs, and Tajima's D neutrality tests, and the sums of squared deviations (SSD) for each major lineage. The expected frequency for mismatch distribution is based on a population growth-decline model determined using DnaSP 5.10.01 (Librado & Rozas 2009). The x axis shows the number of pairwise differences, the y axis shows the frequency of the pairwise comparisons. The observed frequency is represented by a continuous black line, whereas the dashed gray lines represent the expected frequency.

FIGURE 2. a in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 2. a) Bayesian phylogenetic tree inferred from combined mtDNA and nDNA (50% majority-rule consensus) for Glaucomastix abaetensis, and Bayesian species delimitation results assuming a fully resolved, three-species guide tree (bold red lines). The marginal probabilities for speciation are displayed at each node for each combination of priors for θ and τ: LD, θ = G (1, 10) and τ0 = G (1, 10); SS, θ = G (2, 2000) and τ0 = G (2, 2000); LS, θ = G (1, 10) and τ0 = G (2, 2000). Results from both rjMCMC algorithm 0 and 1 are displayed. There was high speciation probability (> 0.95) for southern and northern clades node under all combinations of priors and rjMCMC algorithm, providing robust support for recognition of two species. b) Phylogenetic reconstruction for Glaucomastix including southern lineage (G. abaetensis; MZUSP 104240) and northern lineage (G. itabaianensis sp. nov. holotype; MZUSP 104255) as a new species under BSD approach (bold red line). Colored dots represents samples for different localities as shown in the legend (lower-left corner). Colored squares on nodes correspond to Bayesian posterior probabilities values according to color gradient (see the legend; values <70% were suppressed). The best-fit model of evolution seletected for our data was GTR + G for 16S, cyt b and ND4, F81 for BDNF, and HKY+G for NT3. Kentropyx altamazonica was used as outgroup.

FIGURE 1. a in Phylogeography of the endangered sand dune whiptail lizard Glaucomastix abaetensis (Dias, Rocha & Vrcibradic, 2002) with the description of a new species

FIGURE 1. a) map of northeast Brazil showing the localities used in molecular (colored dots) and morphological analysis (colored dots and black diamonds). Light blue lines are rivers, dashed gray lines are state boundaries, the green patch is the Atlantic Rain Forest and the yellow patch is the semiarid Caatinga. b) and c) reduced median network for southern and northern lineages based on b) 1702 bp concatenated mtDNA and c) 1331 bp concatenated nDNA. Each haplotype is represented by a circle and the area of the circle is proportional to its frequency. Samples from different localities are mentioned in different colors as well as same colors/localities relationship is replicated along this paper, Abaeté (dark blue), Guarajuba (green), Costa do Sauípe (brown), Costa Azul (purple), Reserva do Caju (red), Pirambu (light blue), and Parque Nacional da Serra de Itabaiana (PARNASI; yellow). The length of each branch is proportional to the number of mutational steps on the respective branch ("one" was suppressed). The # indicates that the line has been broken to the convenient arrangement of the each nodes.

Figure 5 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 5. Reproductive phases of females of Ameivula ocellifera. (A) Pre-vitelogenic, (B) vitelogenic, (C) follicular atresia and (D) corpora lutea. Abbreviations: a, vitelline membrane; b, pyriform cells; c, small cells; d, pellucid zone; e, follicular theca; f, granulosa layer single; OV, oocyte.

Figure 2 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 2. Climatic diagram with average air temperature (in °C; solid line), air humidity (in %; grey bars) and precipitation (in mm; dashed line) for the Restinga of the Pirambu municipality, Bahia state of Sergipe, Brazil. The precipitation data were obtained from the meteorological station of the Instituto Nacional de Meteorologia (INMET 2019) nearest to the Pirambu municipality, from 2017 to 2018.

Figure 4 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 4. Reproductive phases of females of Glaucomastix itabaianensis. (A) pre-vitelogenic, (B) vitelogenic, (C) follicular atresia and (D) corpora lutea. Abbreviations: a, vitelline membrane; b, granulosa layer with the presence of pyriform cells; c, small cells.

Figure 7 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 7. Histogram of the reproductive cycle and body fat (monthly means) of males of (A) Glaucomastix itabaianensis and (B) Ameivula ocellifera from June 2017 to May 2018, in an extension of Restinga of the Pirambu municipality, state of Sergipe.

Figure 1 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 1. Specimens of (A) Glaucomastix itabaianensis and (B) Ameivula ocellifera (photo: Tainara Silva); and (C) geographic distribution of G. itabaianensis (circles) and A. ocellifera (stars) in Brazil. The black star with a circle in the centre on the map represents the populations examined in this study in the Restinga of the Pirambu municipality, state of Sergipe, Brazil.

Figure 6 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 6. Reproductive stages of males of Glaucomastix itabaianensis (A–D) and Ameivula ocellifera (E, F): (A) stage II; (B) stage III; (C, E) stage IV; (D) stage V; (F) epididymis in stage IV. Abbreviations: Lu, lumen; Sg, spermatogonia; St, spermatocytes; Sd, spermatids; Sz, spermatozoa; Sc, sertoli cells. Broad black arrow = germ cells disconnected from the germ epithelium; * = interstitial cells.

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Figure 3 in Reproductive activity of two sympatric lizard species, Ameivula ocellifera and Glaucomastix itabaianensis (Squamata: Teiidae), from Northeastern Brazil

Figure 3. Histogram of the reproductive cycle and body fat (monthly averages) of females of (A) Glaucomastix itabaianensis and (B) Ameivula ocellifera from June 2017 to May 2018. Abbreviations: PV, pre-vitellogenic; V, vitelogenic; CL, corpora lutea; FA, folicular atresia; CL/FA, corpora lutea end/or follicular atresia. Dashed line = average monthly fat.