A new miniature of Xenurobryconini (Characiformes: Characidae) from the rio Tapajós basin, Brazil
Author
Mendonça, Marina Barreira
Museu Paraense Emílio Goeldi, Avenida Perimetral, 1901, caixa postal 399, 66077 - 530 Belém, Pará, Brazil
barreira.mm@gmail.com
Author
Peixoto, Luiz Antônio Wanderley
Museu de Zoologia da Universidade de São Paulo, caixa postal 42494, 04218 - 970 São Paulo, São Paulo, Brazil
luizwp@yahoo.com.br
Author
Dutra, Guilherme Moreira
Laboratório de Evolução e Desenvolvimento de Vertebrados, Centro de Genômica e Biologia de Sistemas, Universidade Federal do Pará, Rua Augusto Corrêa, caixa postal 479, 66075 - 900 Belém, Pará, Brazil
guilhermedutr@yahoo.com.br
Author
Netto-Ferreira, André Luiz
Museu Paraense Emílio Goeldi, Avenida Perimetral, 1901, caixa postal 399, 66077 - 530 Belém, Pará, Brazil.
alnferreira@gmail.com
text
Neotropical Ichthyology
2016
e 150057
2016-03-30
14
1
1
8
http://dx.doi.org/10.1590/1982-0224-20150057
journal article
314492
10.1590/1982-0224-20150057
5e1e6f7c-4721-4bdc-8258-a7d8dfb29645
1982-0224
13320395
Table 1. Morphometric data of Xenurobrycon varii. Values for the holotype included in number of specimens and range of values. Max = maximum; Min = minimum; N = number of specimens; SD = standard deviation. | Holotype | N | Min | Max | Mean | SD |
|---|
| Standard length (mm) | 14.2 | 33 | 12.2 | 14.3 | - | - |
|---|
| Percents of standard length |
|---|
| Depth at dorsal-fin origin | 23.3 | 33 | 20.0 | 25.2 | 22.6 | 1.5 |
|---|
| Snout to dorsal-fin origin | 64.2 | 33 | 58.7 | 66.3 | 62.2 | 1.6 |
|---|
| Snout to pectoral-fin insertion | 22.6 | 33 | 19.4 | 24.3 | 22.3 | 1.1 |
|---|
| Snout to pelvic-fin insertion | | | | | | |
|---|
| Males | 32.5 | 17 | 28.0 | 36.0 | 31.5 | 2.1 |
|---|
| Females | | 16 | 33.9 | 43.2 | 39.4 | 2.4 |
|---|
| Snout to anal-fin origin | 59.3 | 33 | 52.2 | 60.9 | 56.5 | 1.6 |
|---|
| Caudal-peduncle depth |
|---|
| Males | 13.4 | 17 | 8.1 | 13.4 | 12.0 | 1.4 |
|---|
| Females | | 16 | 9.1 | 11.4 | 10.1 | 0.6 |
|---|
| Caudal-peduncle length | 13.4 | 33 | 10.3 | 19.1 | 15.3 | 2.0 |
|---|
| Pectoral-fin length | 21.2 | 33 | 12.2 | 23.8 | 18.1 | 3.1 |
|---|
| Pelvic-fin length |
|---|
| Males | 35.3 | 17 | 32.2 | 38.9 | 36.1 | 2.2 |
|---|
| Females | | 16 | 9.1 | 13.3 | 10.9 | 1.1 |
|---|
| Dorsal-fin base length | 7.8 | 33 | 6.1 | 9.7 | 7.5 | 0.8 |
|---|
| Dorsal-fin lenght | 19.8 | 33 | 13.4 | 22.2 | 17.2 | 2.4 |
|---|
| Anal-fin base length | 24.0 | 33 | 21.0 | 26.9 | 23.6 | 1.5 |
|---|
| Anal-fin lobe length |
|---|
| Males | 21.9 | 17 | 21.5 | 25.0 | 23.0 | 1.0 |
|---|
| Females | | 16 | 9.6 | 20.1 | 15.2 | 2.9 |
|---|
| Bony head length | 21.2 | 33 | 17.9 | 24.4 | 22.1 | 1.2 |
|---|
| Percents of head length |
|---|
| Snout length | 19.4 | 33 | 14.3 | 25.0 | 18.6 | 2.5 |
|---|
| Upper jaw length | 29.0 | 33 | 16.7 | 33.3 | 23.2 | 3.4 |
|---|
| Horizontal eye diameter | 48.4 | 33 | 36.7 | 58.3 | 48.3 | 4.0 |
|---|
| Least interorbital distance | 32.3 | 33 | 26.7 | 37.9 | 31.3 | 3.4 |
|---|