Table 1. Morphometric and meristic data of the holotype and paratypes of Astyanax xavante (N: number of specimens; M: mean; SD: standard deviation).
| Character |
N |
M±SD |
range |
holotype |
| Standard length (mm) |
25 |
46.6 |
33.6-59.6 |
57.3 |
| Head length (mm) |
25 |
14.0±2.4 |
10.0-19.8 |
17.1 |
| Body depth (mm) |
25 |
17.5±2.7 |
12.1-22.7 |
21.2 |
| Percents of standard length |
| Head length |
25 |
29.8±0.8 |
28.4-31.2 |
29.8 |
| Body depth |
25 |
37.7±1.3 |
35.5-40.2 |
37.0 |
| Caudal peduncle depth |
25 |
12.7±0.6 |
12.0-13.8 |
12.6 |
| Snout to dorsal-fin origin |
25 |
53.3±1.3 |
50.0-56.0 |
53.1 |
| Snout to anal-fin origin |
25 |
65.4±1.3 |
62.3-67.7 |
66.5 |
| Distance dorsal-pectoral fins |
25 |
41.8±1.3 |
39.4-44.7 |
43.1 |
| Distance dorsal-anal fins |
25 |
38.2±1.4 |
35.6-41.3 |
37.5 |
| Distance anal-adipose fins |
25 |
37.0±1.4 |
35.0-40.2 |
35.6 |
| Distance dorsal-adipose fins |
25 |
37.7±1.3 |
36.0-40.0 |
36.6 |
| Percents of head length |
| Orbital diameter |
25 |
36.7±2.1 |
31.6-40.0 |
31.6 |
| Interorbital width |
25 |
36.4±1.3 |
34.5-39.4 |
38.6 |
| Head depth |
25 |
98.2±4.2 92.2-106.2 |
99.4 |
| Upper jaw length |
23 |
46.8±2.5 |
42.2-50.7 |
49.7 |
| Snout length |
24 |
26.2±1.8 |
22.7-30.7 |
28.2 |
| Percents of body depth |
| Caudal peduncle depth |
25 |
33.3±1.6 |
31.0-36.5 |
33.9 |