Table 3. Morphological characters for studied individuals of M. macrocephala, M. subtrijuga and Malayemys from the Khorat Basin.
| Character | M. macrocephala | M. macrocephala | M. subtrijuga | M. subtrijuga | Malayemys (Khorat) | Malayemys (Khorat) |
|---|---|---|---|---|---|---|
| ♂ (n = 25) | ♀ (n = 26) | ♂ (n = 15) | ♀ (n = 10) | ♂ (n = 9) | ♀ (n = 9) | |
| SCL* | 108.8 ± 17.59 (74–156) | 139.69 ± 41.37 (78–220) | 100.13 ± 15.74 (76–132) | 94.6 ± 10.21 (83–115) | 108.56 ± 23.6104 (87–155) | 115.11 ± 41.02 (82–191) |
| SPL* | 86.6 ± 12.8 (61–117) | 117.38 ± 34.29 (63–176) | 82 ± 12.72 (63–107) | 79.1 ± 9.31 (68–100) | 88.89 ± 16.7 (74–122) | 93.22 ± 31.42 (67–163) |
| CCL* | 120.96 ± 20.37 (80–178) | 153.54 ± 42.29 (86–225) | 111.67 ± 16.01 (86–145) | 106 ± 11.49 (92–128) | 122.33 ± 26.24 (98–176) | 131.33 ± 46.45 (94–210) |
| SCW* | 79.92 ± 10.65 (60–102) | 108.46 ± 29.73 (63–158) | 75.27 ± 10.12 (59–96) | 73.9 ± 6.87 (66–88) | 83.22 ± 14.92 (71–114) | 87.67 ± 25.05 (67–143) |
| CCW* | 101 ± 13.77 (74–129) | 139.12 ± 38.22 (80–202) | 99.53 ± 12.13 (78–122) | 97.6 ± 9.34 (84–111) | 106.67 ± 15.13 (90–136) | 121.67 ± 40.91 (89–194) |
| HT* | 44.28 ± 5.53 (34–59) | 59.15 ± 16.11 (35–90) | 43.4 ± 4.53 (36–53) | 43 ± 3.62 (37–49) | 45.11 ± 7.44 (37–61) | 47.78 ± 11.1 (39–75) |
| NL* | 10.64 ± 1.8 (7–15) | 12 ± 3.14 (6–17) | 8.67 ± 1.35 (6–11) | 8.4 ± 1.17 (6–10) | 10.89 ± 3.66 (7–19) | 11.44 ± 4.36 (8–20) |
| NW* | 7.04 ± 2.17 (2–11) | 8.69 ± 3.7 (3–16) | 8.07 ± 2.09 (5–13) | 9 ± 2.4 (5–13) | 10.22 ± 1.3 (8–12) | 11.00 ± 3.54 (5–16) |
| V1L* | 21.36 ± 3.26 (15–29) | 27.96 ± 8.94 (7–43) | 20.53 ± 3.31 (17–28) | 19.1 ± 3.41 (12–25) | 21.89 ± 4.88 (16–30) | 23.22 ± 7.51 (15–37) |
| V1W* | 14.76 ± 3.15 (8–22) | 20.23 ± 7.19 (10–41) | 13.4 ± 2.03 (10–17) | 13.1 ± 1.37 (11–15) | 18.11 ± 5.49 (12–30) | 19.78 ± 6.51 (12–32) |
| V2L* | 18.36 ± 3.29 (13–28) | 25.08 ± 7.53 (14–40) | 17.47 ± 2.47 (14–22) | 18.1 ± 3.41 (15–27) | 18.44 ± 3.84 (15–28) | 21.78 ± 7.28 (15–34) |
| V2W* | 21.21 ± 3.31 (15–29) | 30.2 ± 9.68 (14–50) | 19.53 ± 2.59 (16–24) | 19.1 ± 2.18 (16–22) | 23.44 ± 3.64 (18–30) | 25.44 ± 7.99 (17–41) |
| V3L* | 18.4 ± 3.88 (11–29) | 24.77 ± 8.1 (12–46) | 16.67 ± 4.29 (11–29) | 17 ± 2.87 (14–22) | 19.67 ± 4.39 (16–30) | 21.44 ± 7.75 (15–35) |
| V3W* | 22.12 ± 3.57 (15–31) | 31.12 ± 10.06 (16–53) | 19.8 ± 2.96 (14–25) | 18.89 ± 2.03 (16–22) | 24.56 ± 4.95 (18–34) | 26.89 ± 8.37 (17–44) |
| V4L* | 17.44 ± 3.18 (11–27) | 22.35 ± 5.89 (13–32) | 16.27 ± 2.43 (11–20) | 14.11 ± 1.83 (10–17) | 18.13 ± 4.12 (14–27) | 19.22 ± 6.57 (14–31) |
| V4W* | 25.32 ± 4.64 (16–38) | 33.5 ± 10.97 (17–56) | 22.93 ± 4.23 (15–31) | 20.89 ± 2.03 (18–25) | 26.75 ± 7.48 (19–42) | 28.44 ± 11.35 (19–51) |
| V5L* | 22.96 ± 4.91 (15–37) | 26.38 ± 8.12 (10–39) | 20.73 ± 4.65 (11–30) | 19.4 ± 2.22 (17–23) | 23.63 ± 6.5 (12–34) | 22.44 ± 8.13 (16–37) |
| V5W* | 28.28 ± 4.56 (19–38) | 37.58 ± 10.64 (18–58) | 27.07 ± 5.6 (16–39) | 25.2 ± 2.25 (22–29) | 32.13 ± 7.72 (24–46) | 33.00 ± 12.6 (22–57) |
| CPL* | 87.92 ± 12.95 (62–120) | 121.12 ± 35.78 (66–182) | 83.33 ± 12.84 (63–108) | 80.5 ± 8.93 (69–100) | 90.78 ± 16.75 (75–123) | 98.56 ± 36.89 (69–171) |
| SPW* | 68.96 ± 11.87 (51–110) | 93.27 ± 26.23 (53–142) | 63.6 ± 8.42 (50–81) | 62.1 ± 6.03 (54–74) | 66.22 ± 9.73 (56–84) | 70.44 ± 19.31 (53–116) |
| CPW* | 77.2 ± 8.64 (58–97) | 104 ± 28.01 (59–155) | 71.27 ± 9.37 (56–93) | 69.7 ± 6.88 (61–85) | 71.56 ± 10.48 (61–90) | 79.33 ± 21.74 (58–121) |
| GulL* | 12.08 ± 2.41 (9–18) | 14.62 ± 4.56 (7–23) | 11.33 ± 2.13 (7–17) | 11.2 ± 1.93 (9–16) | 13.44 ± 4.1 (9–22) | 14.56 ± 6.42 (9–28) |
| HumL* | 11.88 ± 2.35 (7–15) | 16.73 ± 5.2 (8–25) | 10.27 ± 2.15 (6–15) | 10.5 ± 1.51 (9–13) | 11.00 ± 2.0 (8–14) | 11.44 ± 4.69 (8–20) |
| PecL* | 11.12 ± 1.96 (7–15) | 16.04 ± 5.03 (8–26) | 13.8 ± 2.31 (10–17) | 13.1 ± 1.45 (11–16) | 14.78 ± 2.54 (12–20) | 16.11 ± 6.33 (10–28) |
| AbdL* | 22 ± 3.45 (13–30) | 31.77 ± 10.35 (16–51) | 20.07 ± 3.61 (14–28) | 18.7 ± 2.83 (15–25) | 21.78 ± 6.04 (16–32) | 23.56 ± 8.34 (17–39) |
| FemL* | 16.88 ± 3.63 (12–27) | 20.81 ± 5.33 (12–30) | 14.47 ± 3.04 (10–21) | 14.1 ± 2.42 (10–18) | 17.56 ± 2.46 (14–22) | 18.56 ± 8.88 (12–29) |
| AnL* | 13.28 ± 2.59 (8–19) | 18.62 ± 5.85 (10–30) | 12.2 ± 1.82 (10–16) | 11.8 ± 1.32 (10–15) | 12.00 ± 2.12 (9–16) | 13.44 ± 5.03 (10–23) |
| AfW* | 18.96 ± 4.2 (12–30) | 20.52 ± 6.12 (11–34) | 14.87 ± 2.33 (12–20) | 14.4 ± 2.01 (12–19) | 16.56 ± 3.84 (13–24) | 16.00 ± 5.24 (10–26) |
| Ppigm | 33.74 ± 11.58 (10–56) | 33.54 ± 9.72 (16–50) | 38.53 ± 11.16 (17–58) | 37 ± 6.75 (25–47) | 52.89 ± 14.62 (36–78) | 44.44 ± 10.70 (35–65) |
| NasS | 3.2 ± 0.96 (2–4) | 3.08 ± 0.98 (2–4) | 6.53 ± 1.3 (5–10) | 6.5 ± 2.27 (4–11) | 2.78 ± 0.97 (2–4) | 2 ± 0 (2–2) |
| OcuR | 1.5 ± 0.51 (1–2) | 1.52 ± 0.51 (1–2) | 2 ± 0 (2–2) | 2 ± 0 (2–2) | 1 ± 0 (1–1) | 1 ± 0 (1–1) |
| OcuRCharc | 0% pronounced, 40% distinct, 44% medium, 4% weak | 3.8% pronounced, 30.8% distinct, 38.5% medium, 7.7% weak | 100% pronounced, 0% distinct, 0% medium, 0% weak | 100% pronounced, 0% distinct, 0% medium, 0% weak | 11.1% pronounced, 0% distinct, 22% medium, 55.5% weak | 22% pronounced, 0% distinct, 22% medium, 55.5% weak |
| NuchSh | 28% broad, 72% narrow | 30.8% broad, 69.2% narrow | 66.7% broad, 33.37% narrow | 80% broad, 20% narrow | 100% broad, 0% narrow | 88.8% broad, 0% narrow |
| MargCol | 0% blotches, 72% bars, 28% black | 3.8% blotches, 96.2% bars, 0% black | 0% blotches, 93.3% bars, 6.7% black | 0% blotches, 100% bars, 0% black | 78% blotches, 0% bars, 22% black | 100% blotches, 0% bars, 0% black |
| ChinS | 8% present, 92% absent | 11.6% present, 88.5% absent | 66.7% present, 33.3% absent | 80% present, 20% absent | 0% present, 100% absent | 11% present, 89% absent |
| EyeCol | 0% brown, 68% white, 20% green | 0% brown, 53.8% white, 26.9% green | 0% brown, 100% white, 0% green | 0% brown, 100% white, 0% green | 44% brown, 44% white, 0% green | 55% brown, 44% white, 0% green |
| InfLorbCon | 8% present, 92% absent | 3.8% present, 96.2% absent | 80% present, 20% absent | 80% present, 20% absent | 0% present, 100% absent | 0% present, 100% absent |
| InfLorbL | 100% present, 0% absent | 100% present, 0% absent | 100% present, 0% absent | 100% present, 0% absent | 33% present, 67% absent | 0% present, 100% absent |
| InfLorb | 16% narrow, 84% broad | 19.2% narrow, 80.8% broad | 100% narrow, 0% broad | 100% narrow, 0% broad | 88.8% narrow, 11.1% broad | 100% narrow, 0% broad |
| InfLorbSh | 0% angulate, 88% curved, 12% straight | 0% angulate, 96.2% curved, 3.8% straight | 100% angulate, 0% curved, 0% straight | 100% angulate, 0% curved, 0% straight | 0% angulate, 22% curved, 78% straight | 0% angulate, 11% curved, 89% straight |
| postOcS | 96% present, 4% absent | 100% present, 0% absent | 46.7% present, 53.3% absent | 60% present, 40% absent | 0% present, 100% absent | 11% present, 89% absent |
* metric characteristics: mean values, standard deviation, maximum and minimum values (given in brackets) given in mm.
SCL: straight carapace length; SPL: straight plastron length; CCL: curved carapace length; SCW: straight carapace width; CCW: curved carapace width; HT: shell height; NL: length of nuchal scute; NW: width of nuchal scute; V1L, V2L, V3L, V4L, V5L: length of vertebral scutes 1–5; V1W, V2W, V3W, V4W, V5W: width of vertebral scutes 1–5; CPL: curved plastron length; SPW: straight plastron width; CPW: curved plastron width; GulL, HumL, PecL, AbdL, FemL, AnL: medial seam length of plastral scutes; AfW: width of anal fork; Ppigm: pigmentation of plastron in %; NasS: number of nasal stripes; OcuR: number of ocular rings; OcuRCharc: feature characteristics of ocular rings; NuchSh: shape of nuchal scute; MargCol: coloration patterns of lower marginal scutes; ChinS: presence of chin stripe; EyeCol: eye coloration; InfLorbCon: presence of connection of infraorbital stripe with crown; InfLorbL: length of infraorbital stripe; InfLorb: connection of infraorbital stripe to loreal seam broad or narrow; InfLorbSh: shape of infraorbital stripe; postOcS: presence of postocular stripe.