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Table 2 Mensural and meristic data, expressed as mean ± SE and range, for adults of the species studied herein

From: Genetic and morphological divergence among three closely related Phrynocephalus species (Agamidae)

  P. guinanensis P. putjatia P. vlangalii Effects
Females Males Females Males Females Males Species Sex Species × Sex
N 89 86 95 100 54 52    
Snout-vent length (mm) 66.7 ± 0.6 66.1 ± 0.7 61.0 ± 0.5 60.4 ± 0.4 65.7 ± 1.0 63.5 ± 0.8 F2, 470 = 54.79, P < 0.0001; PGa, PPc, PVb F1, 470 = 4.74, P = 0.030; F > M F2, 470 = 0.98, P = 0.378
53.2–77.1 51.0–78.8 49.3–70.5 50.0–69.8 51.5–83.4 52.7–77.2
Head length (mm) 16.8 ± 0.1 17.2 ± 0.1 15.2 ± 0.1 15.5 ± 0.1 15.9 ± 0.2 15.9 ± 0.2 F2, 469 = 57.15, P < 0.0001; PGa, PPb, PVb F1, 469 = 50.83, P < 0.0001; F < M F2, 469 = 0.95, P = 0.388
14.5–19.1 13.8–19.9 13.5–16.9 13.5–17.9 12.7–18.8 13.3–18.1
Head width (mm) 13.8 ± 0.1 14.2 ± 0.1 12.8 ± 0.1 13.0 ± 0.1 13.8 ± 0.2 13.9 ± 0.2 F2, 469 = 14.05, P < 0.0001; PGa, PPb, PVa F1, 469 = 43.74, P < 0.0001; F < M F2, 469 = 2.16, P = 0.116
11.9–15.6 11.2–16.5 11.1–14.6 11.2–14.7 11.0–16.4 11.8–16.2
Abdomen length (mm) 36.0 ± 0.3 34.0 ± 0.4 33.2 ± 0.3 31.4 ± 0.3 36.8 ± 0.6 33.4 ± 0.5 F2, 469 = 13.15, P < 0.0001; PGc, PPb, PVa F1, 469 = 125.32, P < 0.0001; F > M F2, 469 = 1.23, P = 0.292
28.0–42.7 26.1–43.0 26.2–40.7 24.8–38.2 27.0–46.9 27.0–41.0
Tail length (mm) 60.0 ± 0.7 65.5 ± 0.8 54.6 ± 0.7 59.5 ± 0.7 58.0 ± 0.9 63.0 ± 0.9 F2, 469 = 1.73, P = 0.179 F1, 469 = 138.98, P < 0.0001; F < M F2, 429 = 0.68, P = 0.506
46.9–76.0 50.8–81.0 41.4–66.8 42.9–71.7 44.2–70.2 47.6–75.5
Fore-limb length (mm) 18.3 ± 0.2 18.9 ± 0.3 16.7 ± 0.1 16.9 ± 0.1 18.0 ± 0.2 18.0 ± 0.2 F2, 469 = 4.68, P < 0.01; PGa, PPb, PVab F1, 469 = 19.27, P < 0.0001; F < M F2, 469 = 1.19, P = 0.306
14.8–23.5 15.3–24.8 14.1–19.0 14.2–18.8 14.6–21.6 14.4–21.2
Hind-limb length (mm) 28.5 ± 0.3 30.1 ± 0.3 26.0 ± 0.2 27.3 ± 0.2 26.7 ± 0.3 27.7 ± 0.3 F2, 469 = 31.75, P < 0.0001; PGa, PPb, PVc F1, 469 = 117.23, P < 0.0001; F < M F2, 469 = 0.62, P = 0.540
23.2–34.9 24.0–35.6 22.1–30.6 21.7–31.1 21.4–31.7 23.1–31.6
4th finger length (mm) 5.7 ± 0.06 5.9 ± 0.06 5.1 ± 0.04 5.3 ± 0.04 5.3 ± 0.1 5.6 ± 0.1 F2, 469 = 20.86, P < 0.0001; PGa, PPb, PVb F1, 469 = 38.20, P < 0.0001; F < M F2, 469 = 1.80, P = 0.166
4.6–6.9 4.7–7.3 4.2–6.0 4.4–6.2 4.3–6.7 4.5–7.1
4th toe length (mm) 8.9 ± 0.1 9.5 ± 0.1 7.9 ± 0.05 8.3 ± 0.06 7.6 ± 0.1 8.1 ± 0.1 F2, 469 = 98.06, P < 0.0001; PGa, PPb, PVc F1, 469 = 76.41, P < 0.0001; F < M F2, 469 = 1.37, P = 0.255
7.3–10.7 7.2–13.2 6.6–9.0 7.2–10.3 6.1–9.5 6.3–9.3
Claw length of the 4th finger (mm) 2.6 ± 0.04 2.3 ± 0.04 2.4 ± 0.03 2.3 ± 0.03 2.0 ± 0.04 1.9 ± 0.04 F2, 469 = 73.94, P < 0.0001; PGa, PPa, PVb F1, 469 = 8.33, P < 0.005; F > M F2, 469 = 3.34, P = 0.036
1.8–3.6 1.6–3.4 1.6–3.1 1.4–3.2 1.3–2.7 1.5–2.9
Claw length of the 4th toe (mm) 2.3 ± 0.04 2.3 ± 0.03 2.1 ± 0.03 2.2 ± 0.03 1.9 ± 0.03 2.0 ± 0.04 F2, 469 = 40.67, P < 0.0001; PGa, PPb, PVc F1, 469 = 4.92, P < 0.027; F < M F2, 469 = 0.71, P = 0.491
1.1–3.2 1.7–3.1 1.4–2.8 1.4–3.2 1.5–2.4 1.5–3.0
Nasal scales 4.9 ± 0.1 5.0 ± 0.1 4.0 ± 0.06 4.0 ± 0.06 4.0 ± 0.08 3.9 ± 0.08 F2, 470 = 97.22, P < 0.0001; PGa, PPb, PVb F1, 470 = 0.17, P = 0.680 F2, 470 = 0.12, P = 0.888
3–8 3–8 3–5 3–5 3–5 3–5
Internasal scales 6.9 ± 0.1 6.8 ± 0.1 5.5 ± 0.07 5.5 ± 0.07 5.5 ± 0.1 5.6 ± 0.1 F2, 470 = 147.54, P < 0.0001; PGa, PPb, PVb F1, 470 = 0.08, P = 0.779 F2, 470 = 0.28, P = 0.755
5–8 5–8 5–7 5–7 4–7 4–7
Scales around parietal eye 9.8 ± 0.1 9.8 ± 0.1 9.1 ± 0.1 9.1 ± 0.1 7.8 ± 0.1 7.8 ± 0.2 F2, 470 = 129.78, P < 0.0001; PGa, PPb, PVc F1, 470 = 0.01, P = 0.913 F2, 470 = 0.01, P = 0.991
8–12 8–12 6–12 7–11 6–10 5–11
Supraocular scales 15.8 ± 0.2 15.7 ± 0.2 13.5 ± 0.2 13.3 ± 0.2 13.1 ± 0.2 12.7 ± 0.2 F2, 470 = 119.30, P < 0.0001; PGa, PPb, PVc F1, 470 = 1.73, P = 0.190 F2, 470 = 0.40, P = 0.669
12–21 11–20 10–19 10–19 10–18 10–16
Superciliaris 11.4 ± 0.1 11.2 ± 0.1 10.9 ± 0.1 10.9 ± 0.1 11.2 ± 0.1 10.6 ± 0.1 F2, 470 = 8.51, P < 0.0003; PGa, PPb, PVb F1, 430 = 9.415, P < 0.003; F > M F2, 430 = 1.62, P = 0.200
9–14 9–14 9–13 8–13 9–14 9–12
Gular folds 23.6 ± 0.3 23.2 ± 0.3 22.7 ± 0.3 21.8 ± 0.3 21.3 ± 0.3 21.0 ± 0.3 F2, 470 = 27.14, P < 0.0001; PGa, PPb, PVc F1, 470 = 3.72, P = 0.054 F2, 470 = 0.58, P = 0.559
17–28 16–31 16–30 17–28 17–26 16–25
Dorsal scales 134.5 ± 1.4 131.4 ± 1.3 117.6 ± 1.5 115.5 ± 1.2 105.2 ± 1.6 101.6 ± 1.5 F2, 470 = 193.22, P < 0.0001; PGa, PPb, PVc F1, 430 = 6.16, P = 0.013; F > M F2, 430 = 0.13, P = 0.882
100–162 107–158 91–149 94–154 78–127 79–118
Ventral scales 115.3 ± 1.2 116.7 ± 1.3 100.5 ± 1.2 101.7 ± 1.1 86.6 ± 1.4 87.1 ± 1.4 F2, 470 = 229.86, P < 0.0001; PGa, PPb, PVc F1, 430 = 0.92, P = 0.338 F2, 430 = 0.05, P = 0.951
89–138 83–153 74–129 81–131 71–112 73–118
Subdigital lamellae of the 4th finger 16.9 ± 0.2 17.1 ± 0.1 15.6 ± 0.2 15.3 ± 0.2 14.3 ± 0.2 14.2 ± 0.2 F2, 470 = 113.47, P < 0.0001; PGa, PPb, PVc F1, 470 = 0.17, P = 0.683 F2, 470 = 1.48, P = 0.229
13–21 14–22 11–19 11–19 12–18 11–18
Subdigital lamellae of the 4th toe 25.3 ± 0.2 25.5 ± 0.2 22.8 ± 0.2 22.5 ± 0.2 18.6 ± 0.3 18.4 ± 0.2 F2, 470 = 398.62, P < 0.0001; PGa, PPb, PVc F1, 470 = 0.14, P = 0.712 F2, 470 = 0.75, P = 0.472
21–30 21–31 16–27 18–27 15–23 15–22
Scales around mid-body 159.0 ± 1.7 161.6 ± 1.6 141.2 ± 2.1 143.5 ± 2.2 135.0 ± 2.4 135.9 ± 2.0 F2, 470 = 75.52, P < 0.0001; PGa, PPb, PVc F1, 470 = 1.28, P = 0.258 F2, 470 = 0.07, P = 0.928
127–203 121–217 102–201 106–204 108–202 111–173
  1. Data are analyzed using two-way ANOVA (SVL and meristic variables) or two-way ANCOVA (mensural variables other than SVL) with SVL as the covariate and species and sex as the factors
  2. PG P. guinanensis, PP P. putjatia, PV P. vlangalii, F females, and M males