Two new species of Microglanis (Siluriformes: Pseudopimelodidae) from the upper-middle rio Araguaia basin, Central Brazil
Author
Ruiz, William Benedito Gotto
Universidade de São Paulo, Programa de Pós-Graduação em Biologia Comparada, Laboratório deIctiologia de Ribeirão Preto, Departamento de Biologia. Av. dos Bandeirantes, 3900, 14040 - 901 Ribeirão Preto, SP, Brazil
willigotto@yahoo.com.br
Author
Shibatta, Oscar Akio
Universidade Estadual de Londrina, Departamento de Biologia Animal e Vegetal, Centro de Ciências Biológicas, 86051 - 990 Londrina, PR, Brazil
shibatta@uel.br
text
Neotropical Ichthyology
2011
2011-12-31
9
4
697
707
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400002&lng=en&tlng=en
journal article
313969
10.1590/S1679-62252011000400002
5f4f5662-292e-405a-a4cd-0d7b7789adf4
1982-0224
5423198
Table 1. Morphometric data of Microglanis oliveirai (n=32) and Microglanis xylographicus (n=18). SD = standard deviation. Limits include the lower and higher numbers in holotype and paratypes.| Characters | Microglanis oliveirai | Microglanis xylographicus |
|---|
| Holotype | Limits | Mean±SD | Holotype | Limits | Mean±SD |
|---|
| Standard length (mm) | 26.3 | 17.6-26.3 | 21.4±2.2 | 27.8 | 16.9-27.8 | 20.3±3.1 |
|---|
| Percentage of SL |
|---|
| Head length | 29.7 | 27.4-30.4 | 28.8±0.7 | 27.3 | 27.3-30.3 | 29.1±1.3 |
|---|
| Pelvic-fin length | 18.5 | 17.4-19.9 | 18.5±0.6 | 19.1 | 17.3-19.8 | 18.6±0.6 |
|---|
| Dorsal-fin spine length | 12.8 | 9.6-13.6 | 12.2±0.9 | 11.8 | 11.8-16.2 | 13.9±1.1 |
|---|
| Pectoral-fin spine length | 17.1 | 16.3-20.7 | 18.0±1.2 | 16.7 | 15.5-18.8 | 17.3±0.9 |
|---|
| Posterior cleithral process length | 9.7 | 8.5-10.8 | 9.6±0.6 | 12.0 | 9.8-12.4 | 11.0±0.6 |
|---|
| Predorsal length | 40.0 | 38.4-41.5 | 39.9±0.8 | 35.8 | 35.6-39.6 | 37.6±1.0 |
|---|
| Prepelvic length | 52.2 | 50.3-54.5 | 51.9±1.0 | 50.4 | 50.4-53.0 | 51.5±0.8 |
|---|
| Preanal length | 71.0 | 69.7-74.3 | 71.7±1.2 | 70.1 | 68.7-73.4 | 71.1±1.3 |
|---|
| Caudal-peduncle depth | 13.8 | 11.2-13.8 | 12.1±0.5 | 12.5 | 12.3-14.4 | 13.3±0.6 |
|---|
| Caudal-peduncle length | 16.3 | 15.5-17.6 | 16.2±0.5 | 16.8 | 16.8-18.5 | 17.7±0.4 |
|---|
| Body width | 25.9 | 25.4-29.0 | 27.0±0.8 | 28.3 | 26.1-29.0 | 27.5±0.8 |
|---|
| Dorsal-fin base length | 14.1 | 11.3-14.1 | 12.5±0.6 | 14.9 | 13.9-16.9 | 14.9±0.7 |
|---|
| Adipose-fin base length | 17.9 | 13.7-19.7 | 17.6±1.3 | 19.2 | 17.8-22.4 | 20.3±0.8 |
|---|
| Anal-fin base length | 12.8 | 12.2-14.6 | 13.3±0.6 | 14.9 | 13.2-15.3 | 14.1±0.5 |
|---|
| Percentage of HL |
|---|
| Interorbital width | 48.1 | 46.3-55.2 | 50.5±1.9 | 47.5 | 46.5-49.3 | 48.0±0.8 |
|---|
| Orbital diameter | 13.6 | 12.8-15.1 | 13.7±0.5 | 12.4 | 12.4-14.7 | 13.8±0.5 |
|---|
| Snout length | 39.2 | 38.3-43.0 | 40.2±1.3 | 43.8 | 39.0-43.8 | 41.5±1.3 |
|---|
| Mouth width | 49.0 | 48.3-53.5 | 50.1±1.2 | 49.7 | 44.2-49.7 | 46.5±1.5 |
|---|
| Maxillary barbel length | 109.6 | 81.2-125.0 | 102.6±8.6 | 95.9 | 69.7-106.7 | 90.9±9.0 |
|---|