Table 4. Summary of the variation of the characters in Pseudopus apodus apodus, P. a. thracius, and P. a. levantinus ssp. nov. Counts and measurements (in mm) are presented as minimum-maximum (mean ± standard deviation); n = total number of specimens studied. Only intact and non-regenerated tails were considered in SCR, TL, and TotL (for details see Table S4).
Metric data P. a. apodus P. a. thracius P. a. levantinus ssp. nov.
Snout-vent length (SVL) 310-487 (387.61 ± 37.60) (n=304) 320-410 (360.06 ± 31.47) (n=17) 317-610 (490.22 ± 76.15) (n=55)
Length of the tail (TL) 320-765 (567.38 ± 75.61) (n=232) 463-645 (552.71 ± 55.56) (n=17) 416-757 (600.70 ± 107.04) (n=27)
Total length (TotL) 635-1230 (948.40 ± 99.98) (n=232) 796-1025 (912.76 ± 73.52) (n=17) 733-1367 (1072.30 ± 194.60) (n=27)
Head length 1 (HL1) 28.63-58.00 (38.61 ± 4.90) (n=219) 31.10-49.50 (39.55 ± 5.15) (n=17) 29.30-63.75 (47.60 ± 7.99) (n=53)
Head length 2 (HL2) 23.60-47.20 (35.77 ± 4.67) (n=226) 27.20-43.40 (35.40 ± 4.76) (n=17) 27.59-59.58 (44.12 ± 7.65) (n=53)
Pileus length (PL) 26.40-46.30 (35.82 ± 4.02) (n=197) 28.80-44.10 (36.93 ± 4.56) (n=17) 26.85-54.79 (41.98 ± 6.78) (n=53)
Head width 1 (HW1) 17.96-36.50 (24.47 ± 3.62) (n=267) 20.10-29.50 (24.35 ± 2.95) (n=17) 16.62-44.90 (32.04 ± 6.34) (n=53)
Head width 2 (HW2) 15.20-28.76 (19.44 ± 2.37) (n=183) 17.30-26.30 (22.33 ± 2.48) (n=17) 16.06-39.33 (28.21 ± 4.95) (n=53)
Head width 3 (HW3) 13.00-26.87 (17.13 ± 2.26) (n=235) 16.40-25.00 (20.74 ± 2.34) (n=17) 14.21-28.59 (22.62 ± 3.31) (n=53)
Eye-nostril distance (ENL) 6.99-13.90 (10.29 ± 1.28) (n=176) 8.10-11.20 (10.02 ± 0.91) (n=17) 6.58-15.23 (10.13 ± 1.94) (n=54)
Frontal shield length (FL) 8.00-18.50 (11.59 ± 1.60) (n=202) 9.50-15.30 (12.50 ± 1.76) (n=17) 8.63-19.74 (13.75 ± 2.49) (n=52)
Frontal shield width (FW) 5.10-11.75 (8.72 ± 1.09) (n=202) 6.50-10.60 (9.05 ± 1.10) (n=17) 5.69-15.78 (10.23 ± 2.01) (n=52)
Frontal shield-snout length (FSL) 11.00-18.00 (13.90 ± 1.64) (n=137) 10.30-15.98 (12.58 ± 15.98) (n=17) 10.28-23.39 (17.27 ± 2.96) (n=54)
Snout width (SW) 5.40-12.81 (7.76 ± 1.31) (n=137) 6.30-12.77 (9.17 ± 1.74) (n=17) 5.40-12.41 (8.95 ± 1.57) (n=54)
Intermaxillar shield height (IMH) 3.00-9.00 (4.32 ± 0.63) (n=235) 3.30-5.20 (4.32 ± 0.48) (n=17) 3.22-7.78 (5.61 ± 0.86) (n=53)
Intermaxillar shield width (IMW) 4.00-12.60 (6.49 ± 1.09) (n=234) 5.30-8.20 (6.73 ± 0.90) (n=17) 4.22-11.62 (8.53 ± 1.69) (n=53)
Rudiments length (RL) 1.00-6.55 (3.50 ± 1.01) (n=169) 2.00-4.80 (3.31 ± 0.77) (n=17) 2.68-8.56 (5.55 ± 1.53) (n=55)
Meristic characters
Dorsal scale transversal (DST) 11-14 (12.11 ± 0.40) (n=103) 12 (n=17) 12 (n=55)
Ventral scale transversal (VST) 10-11 (10.01 ± 0.10) (n=83) 10 (n=17) 10 (n=55)
Dorsal scales longitudinal (DSL) 88-119 (105.71 ± 3.88) (n=182) 92-110 (99.30 ± 4.09) (n=17) 88-119 (100.71 ± 5.43) (n=55)
Ventral scales longitudinal (VSL) 111-129 (123.30 ± 2.53) (n=201) 108-124 (118.00 ± 3.61) (n=17) 115-137 (122.40 ± 3.19) (n=55)
Subcaudal scale rows (SCR) 175-249 (228.68 ± 15.43) (n=78) 173-237 (214.22 ± 24.72) (n=9) 199-222 (208.67 ± 7.54) (n=28)
Preanal scales (PAN) 5-11 (7.94 ± 1.44) (n=197) 5-8 (6.37 ± 0.72) (n=17) 10 (n=55)
Supralabial scales left (SPLl) 9-13 (11.17 ± 0.98) (n=124) 10-12 (11.06 ± 0.43) (n=17) 11-14 (12.13 ± 0.85) (n=54)