A new species of Gymnotus (Gymnotiformes: Gymnotidae) from the Fitzcarrald Arch of southeastern Peru
Author
Maxime, Emmanuel L.
Author
Albert, James S.
text
Neotropical Ichthyology
2009
2009-12-31
7
4
579
585
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400004&lng=en&tlng=en
journal article
5724
10.1590/S1679-62252009000400004
4d54c85b-7149-43ec-9c1d-8dfb1a575b4a
1982-0224
4567225
Table 2. Morphometric and meristic data for Gymnotus chaviro. BW/BD expressed as a ratio. | n | Min. | Max. | Mean |
|---|
| Total length (mm) | 97 | 95.0 | 275.0 | 148.7 |
|---|
| Head length (mm) | 77 | 10.3 | 32.0 | 15.1 |
|---|
| Percentage of total length |
|---|
| Head length | 72 | 8.9 | 12.0 | 10.3 |
|---|
| Body depth (BD) | 71 | 6.3 | 10.2 | 8.8 |
|---|
| Body width (BW) | 72 | 5.9 | 8.4 | 6.8 |
|---|
| Anal fin length | 77 | 75.0 | 83.8 | 80.5 |
|---|
| Percentage of head length |
|---|
| Head depth | 75 | 61.8 | 78.1 | 71.0 |
|---|
| Head width | 76 | 58.5 | 74.7 | 68.7 |
|---|
| Preorbital distance | 77 | 31.4 | 39.8 | 35.1 |
|---|
| Postorbital distance | 77 | 58.4 | 67.3 | 63.2 |
|---|
| Interorbital distance | 76 | 37.9 | 49.2 | 41.8 |
|---|
| Mouth width | 76 | 35.5 | 52.5 | 43.4 |
|---|
| Preanal length | 74 | 67.8 | 99.4 | 80.0 |
|---|
| Pectoral fin length | 77 | 45.8 | 66.8 | 56.9 |
|---|
| BW/BD | 73 | 0.64 | 0.88 | 0.77 |
|---|
| n | Min. | Max. | Median |
|---|
| Bands | 87 | 17 | 22 | 19 |
|---|
| Pored lateral line scales to 1st ramus | 7 | 48 | 52 | 50 |
|---|
| Total pored lateral line scales | 8 | 86 | 100 | 97 |
|---|
| Lateral-line ventral rami | 6 | 7 | 12 | 9 |
|---|
| Anal-fin rays | 24 | 239 | 280 | 258 |
|---|
| | | | Mode |
|---|
| Scales above lateral line | 21 | 7 | 9 | 8 |
|---|
| Anal-fin pterygiophore scales | 20 | 12 | 13 | 12 |
|---|
| Pectoral-fin rays | 29 | 18 | 19 | 19 |
|---|
| Precaudal vertebrae | 2 | 37 | 38 | - |
|---|