Table 1. Morphometric data of holotype and 27 paratypes of Chrysobrycon eliasi from río Madre de Dios and Upper río Manuripe basins. n = number of specimens; SD = standard deviation. The values of the holotype are included in the range of males.
| Characters |
Holotype |
Males |
Females and juveniles |
| n |
Range |
Mean |
SD |
n |
Range |
Mean |
SD |
| Standard length (mm) |
34.25 |
13 |
27.58-39.90 |
35.08 |
- |
15 |
29.33-43.50 |
35.71 |
- |
| Percentages of standard length |
| Depth at dorsal-fin origin |
31.97 |
13 |
29.02-34.49 |
31.31 |
1.63 |
15 |
26.94-31.12 |
29.14 |
1.38 |
| Snout to dorsal-fin origin |
64.50 |
13 |
62.56-64.89 |
63.55 |
0.83 |
15 |
61.15-65.86 |
63.70 |
1.25 |
| Snout to pectoral-fin origin |
28.82 |
13 |
27.21-29.43 |
28.20 |
0.76 |
15 |
26.71-28.17 |
27.41 |
0.41 |
| Snout to pelvic-fin origin |
46.19 |
13 |
44.48-49.52 |
46.05 |
1.32 |
15 |
43.81-48.16 |
45.77 |
1.13 |
| Snout to anal-fin origin |
57.64 |
13 |
56.81-61.26 |
58.54 |
1.20 |
15 |
57.11-60.76 |
58.64 |
1.03 |
| Dorsal-fin to pectoral-fin length |
46.80 |
13 |
44.27-50.17 |
46.76 |
1.39 |
15 |
44.27-47.88 |
46.15 |
1.03 |
| Dorsal-fin to adipose-fin length |
25.28 |
13 |
24.59-26.31 |
25.42 |
0.60 |
15 |
23.93-26.04 |
25.29 |
0.59 |
| Dorsal-fin to hypurals complex length |
37.93 |
13 |
36.32-41.17 |
38.71 |
1.46 |
15 |
36.62-40.12 |
38.08 |
1.07 |
| Eye to dorsal-fin origin |
50.98 |
13 |
49.74-52.15 |
50.98 |
0.75 |
15 |
48.07-52.94 |
51.24 |
1.44 |
| Pectoral-fin to pelvic-fin length |
17.87 |
13 |
15.76-22.63 |
18.70 |
1.32 |
15 |
16.13-20.74 |
19.31 |
1.25 |
| Pelvic-fin to anal-fin length |
12.85 |
13 |
12.85-15.86 |
14.10 |
0.94 |
15 |
12.12-16.67 |
14.74 |
1.21 |
| Dorsal-fin length |
17.58 |
13 |
16.26-21.65 |
19.20 |
1.44 |
15 |
17.75-20.67 |
19.32 |
0.92 |
| Dorsal-fin base length |
11.59 |
13 |
10.77-11.85 |
11.33 |
0.36 |
15 |
10.31-12.01 |
11.00 |
0.42 |
| Pectoral-fin length |
26.01 |
13 |
22.69-26.40 |
24.80 |
1.24 |
15 |
23.31-26.47 |
24.67 |
0.74 |
| Pelvic-fin length |
16.53 |
13 |
13.00-16.82 |
15.40 |
1.18 |
15 |
12.54-14.66 |
13.75 |
0.60 |
| Anal-fin length |
18.36 |
13 |
15.67-20.34 |
17.81 |
1.04 |
15 |
16.69-20.05 |
18.14 |
0.94 |
| Anal-fin base length |
33.66 |
13 |
31.48-35.73 |
33.07 |
1.18 |
15 |
30.23-34.30 |
32.74 |
1.05 |
| Caudal peduncle depth |
11.62 |
13 |
10.00-12.46 |
11.39 |
0.78 |
15 |
9.21-10.69 |
9.88 |
0.47 |
| Caudal peduncle length |
12.85 |
13 |
12.48-15.70 |
14.06 |
0.97 |
15 |
11.39-14.19 |
12.77 |
0.91 |
| Bony head length |
25.61 |
13 |
24.36-25.95 |
25.14 |
0.53 |
15 |
22.90-25.39 |
24.46 |
0.65 |
| Percentages of head length |
| Snout length |
30.33 |
13 |
27.83-30.46 |
29.43 |
0.96 |
15 |
26.96-31.28 |
29.29 |
1.25 |
| Horizontal eye length |
33.18 |
13 |
29.93-36.00 |
33.00 |
1.82 |
15 |
31.99-37.21 |
34.56 |
1.57 |
| Postorbital head length |
39.68 |
13 |
37.02-41.66 |
39.44 |
1.73 |
15 |
37.06-41.46 |
38.82 |
1.33 |
| Maxillary length |
36.60 |
13 |
33.76-38.07 |
36.56 |
0.88 |
15 |
35.36-38.75 |
36.72 |
1.02 |
| Least interorbital width |
34.89 |
13 |
34.58-38.48 |
35.90 |
1.11 |
15 |
34.97-39.51 |
36.63 |
1.20 |
| Upper jaw length |
46.98 |
13 |
44.51-48.53 |
46.12 |
1.09 |
15 |
41.83-49.34 |
45.64 |
1.47 |