Table 2. Morphometric data of Rineloricaria maacki from middle and lower rio Iguaçu. N = sample size; SD = Standard deviation. Range includes the holotype.
| Variable |
N |
Holotype |
Low |
High |
Mean |
SD |
| Standard length (mm) |
9 |
108.4 |
79.7 |
136.2 |
115.0 |
17.6 |
| Percents of standard length |
| Head length |
9 |
26.0 |
23.1 |
26.0 |
24.2 |
1.1 |
| Predorsal length |
9 |
36.2 |
32.6 |
37.4 |
34.8 |
1.5 |
| Dorsal spine length |
9 |
19.4 |
19.0 |
21.0 |
20.0 |
0.7 |
| Anal spine length |
9 |
15.1 |
13.9 |
16.8 |
15.5 |
1.0 |
| Pectoral spine length |
9 |
17.2 |
14.8 |
19.0 |
17.5 |
1.3 |
| Pelvic spine length |
9 |
14.3 |
13.5 |
16.2 |
14.7 |
0.8 |
| Upper caudal spine length |
9 |
14.7 |
13.9 |
17.2 |
15.5 |
1.1 |
| Lower caudal spine length |
9 |
11.7 |
11.0 |
13.8 |
12.2 |
0.8 |
| Thoracic length |
9 |
16.5 |
13.2 |
16.9 |
15.4 |
1.3 |
| Abdominal length |
9 |
17.6 |
15.6 |
18.2 |
16.8 |
0.9 |
| Cleithral width |
9 |
20.6 |
18.8 |
20.9 |
20.0 |
0.7 |
| Body depth at dorsal-fin origin |
9 |
9.4 |
9.4 |
13.0 |
10.7 |
1.2 |
| Body width at anal-fin origin |
9 |
12.1 |
11.3 |
12.6 |
12.0 |
0.4 |
| Postanal length |
9 |
50.2 |
50.2 |
54.0 |
51.8 |
1.3 |
| Percents of head length |
| Snout length |
9 |
46.9 |
46.9 |
52.2 |
49.6 |
1.4 |
| Orbital diameter |
9 |
21.1 |
19.4 |
21.9 |
21.0 |
0.7 |
| Interorbital width |
9 |
23.0 |
23.0 |
26.0 |
24.3 |
0.9 |
| Head depth |
9 |
35.5 |
35.5 |
43.9 |
40.0 |
2.7 |
| Premaxillary ramus |
9 |
6.7 |
6.3 |
7.7 |
7.0 |
0.5 |
| Maxillary barbel length |
9 |
4.0 |
3.4 |
7.0 |
4.5 |
1.2 |