Table 1. Morphometry of Phenacorhamdia tenebrosa
|
Range |
Mean |
SD |
| Standard length SL |
37.6-44.7 |
|
|
| % of SL |
| Body depth |
11.2-13.3 |
11,9 |
0,9 |
| Cleithral width |
12.4-14.1 |
13,1 |
0,7 |
| Predorsal length |
38.6-41.3 |
40,1 |
1,1 |
| Dorsal-fin base |
10.4-12.0 |
11,1 |
0,8 |
| Dorsal to adipose fin |
18.4-20.3 |
19,2 |
0,8 |
| Preadipose length |
67.6-72.5 |
70,3 |
2,1 |
| Adipose-fin length |
16.9-18.9 |
17,9 |
0,9 |
| Prepelvic length |
37.7-41.2 |
39,0 |
1,6 |
| Preanal length |
65.4-68.5 |
66,9 |
1,3 |
| Anal-fin base |
12.0-13.5 |
12,4 |
0,7 |
| Caudal-peduncle length |
18.3-20.2 |
19,2 |
0,8 |
| Caudal-peduncle depth |
6.6-7.2 |
6,8 |
0,3 |
| Upper caudal lobe length |
21.0-22.6 |
21,8 |
0,9 |
| Lower caudal lobe length |
22.7-24.6 |
23,9 |
1,1 |
| Head length |
21.0-22.9 |
21,8 |
0,9 |
| Maxillary-barbel length |
23.4-34.2 |
26,7 |
5,0 |
| Outer mental-barbel length |
14.6-17.3 |
15,6 |
1,3 |
| Inner mental-barbel length |
21.0-26.0 |
24,3 |
2,3 |
| % of HL |
| Head width |
57.0-60.8 |
58,9 |
1,8 |
| Head depth |
40.9-43.2 |
41,7 |
1,0 |
| Mouth gape |
33.7-38.9 |
35,9 |
2,4 |
| Snout length |
35.4-37.9 |
36,7 |
1,0 |
| Fleshy interorbital |
20.0-23.2 |
21,5 |
1,3 |
| Eye diameter |
9.7-12.8 |
10,8 |
1,4 |