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<br />172 <br /> <br />DOUGLAS ET AL. <br /> <br />Appendix 1: Meristic and Morphometric Data of Gila spp. <br /> <br />TABLE Al.-Meristic and morphometric variables for three species of Gila studied. Data are un transformed means <br />(SDs in parentheses); sample sizes are given for each species. <br /> <br /> G. robusta G. cypha G. elegans <br />Variable (N = 81) (N = 58) (N = 28) <br /> Meristic character counts <br />Dorsal rays 9.00 (0.00) 9.22 (0.42) 10.00 (0.39) <br />Anal rays 9.15 (0.36) 10.07 (0.32) 10.36 (0.49) <br />Lateral line scales 84.99 (5.18) 82.12 (3.78) 85.36 (5.53) <br />Gill rakers (2nd arch)a 13.52 (1.01) 15.26 (1.05) 18.29 (1.53) <br />I st pharyngeal teeth (left posterior limb)a 2.07 (0.41) 1.97 (0.18) 2.07 (0.38) <br />2nd pharyngeal teeth (left posterior limb)' 4.93 (0.26) 4.97 (0.18) 4.96 (0.19) <br />3rd pharyngeal teeth (left posterior limb)a 4.02 (0.16) 3.98 (0.13) 4.04 (0.19) <br />4th pharyngeal teeth (left posterior limb)a 2.04 (0.37) 1.91 (0.34) 2.04 (0.19) <br />Thoracic vertebrae' 19.91 (0.61) 20.00 (0.73) 21.79 (0.79) <br />Caudal vertebraea 22.11 (0.88) 23.24 (0.92) 23.07 (0.66) <br /> Morphometric character length (mm) <br />Standard length 250.50 (35.8) 253.09 (24.9) 280.23 (28.6) <br />Head length 66.19 (10.3) 60.93 (5.42) 63.79 (5.57) <br />Eye diameter 6.85 (1.76) 7.02 (0.81) 8.47 (0.89) <br />Snout length 21.81 (3.79) 21.20 (2.52) 19.41 (2.22) <br />Preanal length 168.73 (26.5) 158.]9 (15.6) 176.80 (17.6) <br />Head depth through eye 25.68 (3.76) 20.33 (1.59) 20.67 (2.09) <br />Head depth at occiput 37.71 (5.76) 32.72 (2.50) 36.47 (4.02) <br />Interorbital width (bony) 21.95 (3.79) 21.29 (1.99) 21.48 (2.16) <br />Tip of snout to occiput 48.59 (8.11) 41.06 (4.21) 45.05 (4.45) <br />Dorsal fin base 32.42 (4.65) 36.73 (3.59) 39.64 (4.15) <br />Anal fin base 30.15 (4.32) 36.13 (4.23) 40.30 (4.94) <br />Predorsal length 129.71 (19.9) 125.06 (11.5) 134.08 (14.4) <br />Pectoral fin length 47.98 (7.25) 51.15 (5.48) 51.27 (5.85) <br />Pelvic fin length 38.33 (5.69) 40.68 (4.42) 42.22 (4.51) <br />Length of upper jaw 23.32 (4.10) 20.50 (2.61) 18.94 (2.16) <br />Mouth width 19.53 (3.49) ] 8.82 (2.79) 18.41 (2.22) <br />Body depth at pectoral fin insertion 46.87 (7.] 6) 49.28 (5.92) 47.96 (6.72) <br />Depth of caudal peduncle ]5.73 (2.26) 13.28 (1.27) 11.65 (1.54) <br />Anal fin origin to caudal base 88.79 (12.6) 103.58 (12.3) 112.98 (12.4) <br />Length of left pharyngeal bonea 21.85 (3.90) 18.68 (1.88) 20.72 (1.89) <br />Width of left pharyngeal bonea 9.99 (4.21) 8.20 (3.57) 7.75 (3.52) <br />Length of posterior pharyngeal limba 11.46 (0.36) 10.74 (0.34) 13.58 (0.37) <br />Length of anterior pharyngeal limb' 12.59 (0.47) 10.96 (0.40) 12.10 (0.37) <br />Pectoral insertion to pelvic insertion 59.97 (9.26) 51.93 (5.24) 56.96 (8.11) <br />Depth of skull's frontal depressiona 1.10 (0.65) 4.92 (1.48) 3.07 (1.00) <br />a Excluded from field data set. <br /> <br />... <br />