Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil
Author
Ferrer, Juliano
Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501 - 970 Porto Alegre, RS, Brazil
julianoferrer@bol.com.br
Author
Malabarba, Luiz R.
Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501 - 970 Porto Alegre, RS, Brazil
malabarb@ufrgs.br
text
Neotropical Ichthyology
2013
2013-06-30
11
2
217
246
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200217&lng=en&tlng=en
journal article
314080
10.1590/S1679-62252013000200001
77cfdfcf-4cf5-4bcd-a73a-34dfe65c5f9a
1982-0224
4647169
Table 1. Morphometric data for holotype and paratypes of Trichomycterus balios. SD = standard deviation; N = number of specimens. | Holotype | Range | Mean | SD | N |
|---|
| Standard length (mm) | 82.0 | 27.3-100.9 | 62.98 | - | 103 |
|---|
| Percent of Standard Length |
|---|
| Head length | 18.0 | 19.5-25.7 | 21.7 | 1.00 | 103 |
|---|
| Predorsal length | 54.8 | 62.3-67.8 | 65.9 | 1.13 | 103 |
|---|
| Prepelvic length | 49.0 | 55.9-61.3 | 58.4 | 1.13 | 103 |
|---|
| Preanal length | 60.3 | 69.5-75.6 | 72.5 | 1.27 | 103 |
|---|
| Scapular girdle width | 12.4 | 13.4-18.9 | 15.3 | 0.72 | 103 |
|---|
| Trunk length | 31.5 | 34.9-41.4 | 38.7 | 1.09 | 103 |
|---|
| Pectoral-fin length | 10.0 | 10.6-14.5 | 12.4 | 0.76 | 103 |
|---|
| Pelvic-fin length | 7.3 | 7.1-10.7 | 8.4 | 0.60 | 103 |
|---|
| Distance between pelvic-fin base and anus | 7.8 | 8.1-11.9 | 9.9 | 0.74 | 103 |
|---|
| Caudal peduncle length | 13.7 | 16.5-22.3 | 19.3 | 0.99 | 103 |
|---|
| Caudal peduncle depth | 9.00 | 10.1-13.7 | 11.3 | 0.63 | 103 |
|---|
| Body depth | 12.6 | 10.8-17.6 | 14.2 | 1.10 | 101 |
|---|
| Length of dorsal-fin base | 9.1 | 8.6-12.7 | 11.0 | 0.67 | 103 |
|---|
| Length of anal-fin base | 7.5 | 6.9-10.5 | 8.8 | 0.67 | 103 |
|---|
| Percents of Head Length |
|---|
| Head width | 15.0 | 76.4-89.1 | 82.3 | 2.70 | 103 |
|---|
| Nasal barbel length | 8.0 | 35.0-62.9 | 49.3 | 5.68 | 103 |
|---|
| Maxillary barbel length | 7.9 | 37.8-66.6 | 53.2 | 6.71 | 103 |
|---|
| Rictal barbel length | 7.7 | 31.9-59.8 | 47.7 | 6.22 | 103 |
|---|
| Snout length | 8.1 | 40.2-48.2 | 44.8 | 1.92 | 103 |
|---|
| Interorbital | 4.0 | 17.8-26.3 | 22.2 | 1.70 | 103 |
|---|
| Mouth width | 8.1 | 33.7-50.3 | 43.3 | 3.09 | 103 |
|---|
| Eye diameter | 1.5 | 6.8-15.2 | 9.7 | 1.58 | 103 |
|---|
| Supra-orbital pore distance | 1.8 | 4.4-16.9 | 9.7 | 2.49 | 102 |
|---|