Table 1. Morphometric data for Corydoras brittoi and Corydoras pavanelliae. N= number of measured specimens and SD = standard deviation.
|
Corydoras brittoi |
Corydoras pavanelliae |
|
N |
Holotype |
Low-High |
Mean±SD |
N |
Holotype |
Low-High |
Mean±SD |
| Standard length (mm) |
20 |
38.1 |
31.4-39.0 |
36.1.5±1.8 |
20 |
45.1 |
23.3-45.1 |
26.6±4.8 |
| Percents of standard length |
| Depth of body |
20 |
38.6 |
34.7-40.5 |
38.7±1.2 |
20 |
43.2 |
35.8-43.2 |
38.7±1.6 |
| Predorsal distance |
20 |
51.2 |
49.5-53.3 |
51.1±0.8 |
20 |
54.5 |
48.6-54.5 |
52.2±1.6 |
| Prepelvic distance |
20 |
48.8 |
47.8-51.1 |
49.1±0.7 |
20 |
50.1 |
45.8-51.4 |
48.3±1.5 |
| Preanal distance |
20 |
83.2 |
80.3-85.1 |
82.1±1.2 |
20 |
85.8 |
78.1-85.8 |
81.3±1.8 |
| Preadipose distance |
20 |
84.3 |
83.8-86.5 |
84.8±0.9 |
20 |
88.2 |
83.5-88.7 |
85.6±1.5 |
| Length of dorsal spine |
19 |
23.6 |
23.6-27.2 |
25.3±1.2 |
19 |
30.8 |
26.7-32.4 |
30.3±1.4 |
| Length of pectoral spine |
20 |
24.9 |
24.2-27.2 |
25.9±0.9 |
20 |
31.7 |
28.7-33.8 |
31.1±1.3 |
| Length of adipose-fin spine |
19 |
8.4 |
8.0-10.2 |
9.0±0.6 |
20 |
8.6 |
7.6-9.8 |
8.7±0.7 |
| Depth of caudal peduncle |
20 |
14.7 |
13.7-15.7 |
14.9±0.5 |
20 |
15.7 |
15.0-16.9 |
15.8±0.6 |
| Length of dorsal-fin base |
20 |
19.4 |
18.6-21.6 |
20.2±0.8 |
20 |
19.3 |
16.7-19.5 |
18.1±0.8 |
| Dorsal to adipose distance |
20 |
16.8 |
14.9-19.1 |
16.7±1.3 |
20 |
18.2 |
18.0-20.5 |
19.3±0.8 |
| Maximum cleithral width |
20 |
23.1 |
22.9-25.2 |
24.0±0.6 |
20 |
29.3 |
26.5-29.3 |
27.7±0.8 |
| Head length |
20 |
44.4 |
42.6-49.0 |
45.0±1.4 |
20 |
47.7 |
44.2-48.6 |
46.6±1.3 |
| Length of maxillary barbel |
20 |
17.3 |
12.1-19.2 |
16.3±1.5 |
20 |
15.1 |
9.7-15.1 |
12.3±1.7 |
| Percents of head length |
| Head depth |
20 |
79.2 |
71.9-84.3 |
81.0±3.1 |
20 |
84.7 |
73.3-84.7 |
79.1±2.9 |
| Least interorbital distance |
20 |
29.2 |
28.1-32.3 |
31.0±1.2 |
20 |
33.5 |
29.3-34.0 |
31.4±1.3 |
| Horizontal orbit diameter |
20 |
22.8 |
20.9-24.3 |
22.8±0.8 |
20 |
21.4 |
21.4-27.4 |
24.9±1.3 |
| Snout length |
20 |
33.2 |
35.9-43.4 |
40.7±1.8 |
20 |
37.7 |
32.7-37.8 |
35.3±1.4 |
| Least internarial distance |
20 |
14.9 |
10.0-14.5 |
12.6±1.1 |
20 |
16.3 |
11.8-16.3 |
14.2±1.1 |