Table 1. Morphometric data for Moenkhausia diamantina.
Holotype n Paratypes Range Mean
Standard length (mm) 57.3 42 27.4-58.3
Percents of standard length
Greatest depth 43.8 42 36.3-45.1 40.2
Snout to dorsal-fin origin 53.6 42 50.5-56.4 53.5
Snout to pectoral-fin origin 29.4 42 28.5-34.9 31.1
Snout to pelvic-fin origin 47.8 42 44.9-50.7 48.1
Snout to anal-fin origin 63.5 42 60.6-67.1 64.1
Caudal peduncle depth 12.0 42 9.7-12.9 11.1
Caudal peduncle length 10.6 42 7.6-12.8 9.7
Pectoral-fin length 24.5 42 21.5-25.5 23.1
Pelvic-fin length 21.0 42 18.7-22.4 20.2
Dorsal-fin length 33.1 37 30.0-35.4 32.8
Dorsal-fin base 15.7 28 13.1-17.1 15.4
Anal-fin length 23.4 37 19.6-27.1 23.9
Anal-fin base 35.5 28 28.0-36.7 33.0
Eye to dorsal-fin origin 40.8 42 34.9-40.8 37.8
Dorsal-fin origin to caudal-fin origin 54.0 42 49.9-56.0 52.9
Head length 27.3 42 26.8-32.4 29.6
Head depth 21.7 42 19.3-23.9 22.2
Percents of head length
Snout length 29.8 42 25.5-35.9 30.9
Upper jaw length 45.6 42 44.1-54.1 48.7
Horizontal orbital diameter 43.0 42 39.3-46.7 43.4
Least interorbital width 37.5 42 25.1-38.6 33.1