A new species of Otothyropsis (Siluriformes: Loricariidae) from the rio Paraguay basin, Paraguay
Author
Calegari, Bárbara B.
Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga 6681, P. O. Box 1429, 90619 - 900 Porto Alegre, RS, Brazil
barbara.calegari@gmail.com
Author
A., Pablo Lehmann
Laboratório de Ictiologia, Universidade do Vale do Rio dos Sinos. Av. Unisinos, 950, 93022 - 000 São Leopoldo, RS, Brazil
pablole@unisinos.br
Author
Reis, Roberto E.
Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga 6681, P. O. Box 1429, 90619 - 900 Porto Alegre, RS, Brazil
reis@pucrs.br
text
Neotropical Ichthyology
2011
2011-06-30
9
2
253
260
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200002&lng=en&tlng=en
journal article
313394
10.1590/S1679-62252011000200002
174bf16c-a27a-422f-b91d-cd1813b4e65f
1982-0224
4647506
Table 2. Descriptive morphometrics of Otothyropsis species. Values are given for holotype and paratypes of O. piribebuy and O. marapoama. SD = Standard deviation. | Otothyropsis piribebuy | Otothyropsis piribebuy | Otothyropsis marapoama | Otothyropsis marapoama |
|---|
| Males (n = 10) | Females (n = 9) | Males (n = 3) | Females (n = 12) |
|---|
| Low | High | Mean | SD | Holotype | Low | High | Mean SD | Low | High | Mean | SD | Holotype | Low | High | Mean | SD |
|---|
| Standard length (mm) | 22.3 | 24.9 | 23.4 | - | 28.8 | 22.5 | 28.8 | 26.6 | - | 20.7 | 26.7 | 24.0 | - | 37.4 | 20.8 | 37.4 | 26.4 | - |
|---|
| Percents of Standard length |
|---|
| Head length | 33.6 | 37.8 | 36.8 | 1.2 | 35.0 | 33.4 | 37.7 | 36.1 | 1.4 | 32.7 | 37.8 | 35.9 | 2.8 | 34.1 | 34.1 | 39.7 | 37.2 | 1.8 |
|---|
| Predorsal length | 47.1 | 50.5 | 48.8 | 1.0 | 47.6 | 46.5 | 50.1 | 48.6 | 1.4 | 47.1 | 48.9 | 48.1 | 0.9 | 47.8 | 45.7 | 50.1 | 48.3 | 1.5 |
|---|
| Postdorsal length | 38.8 | 42.3 | 40.4 | 1.1 | 40.3 | 39.4 | 42.5 | 40.9 | 1.3 | 39.3 | 43.8 | 41.2 | 2.3 | 39.5 | 39.0 | 45.7 | 41.5 | 2.1 |
|---|
| Preanal length | 63.0 | 66.8 | 65.0 | 1.0 | 64.4 | 63.2 | 67.4 | 65.6 | 1.5 | 59.5 | 63.0 | 61.4 | 1.7 | 63.9 | 60.9 | 66.1 | 63.4 | 1.5 |
|---|
| Prepelvic length | 42.2 | 46.3 | 44.2 | 1.2 | 43.4 | 43.2 | 46.3 | 44.6 | 1.1 | 41.2 | 43.8 | 42.4 | 1.3 | 40.8 | 40.6 | 45.4 | 43.5 | 1.5 |
|---|
| Cleithral width | 22.5 | 25.4 | 24.4 | 0.9 | 23.8 | 23.8 | 26.7 | 25.2 | 0.9 | 24.4 | 25.1 | 24.7 | 0.3 | 24.7 | 23.8 | 25.8 | 24.8 | 0.6 |
|---|
| Thorax length | 17.2 | 19.3 | 18.2 | 0.6 | 17.1 | 17.1 | 19.7 | 18.6 | 0.9 | 15.6 | 21.2 | 18.2 | 2.8 | 17.0 | 15.9 | 18.4 | 17.2 | 0.7 |
|---|
| Abdomen length | 20.8 | 23.1 | 21.8 | 0.8 | 22.4 | 20.8 | 24.3 | 22.4 | 1.0 | 20.1 | 20.7 | 20.4 | 0.3 | 25.3 | 18.3 | 25.3 | 21.0 | 1.8 |
|---|
| Dorsal-fin spine length | 25.4 | 29.8 | 27.4 | 1.2 | 24.8 | 24.8 | 29.1 | 26.9 | 1.3 | 24.3 | 26.3 | 25.4 | 1.0 | 26.0 | 24.2 | 27.7 | 26.0 | 1.2 |
|---|
| Dorsal-fin base length | 12.2 | 14.7 | 13.6 | 0.8 | 13.2 | 12.9 | 14.7 | 13.8 | 0.6 | 10.8 | 14.5 | 13.1 | 2.0 | 13.7 | 11.0 | 14.7 | 12.9 | 1.0 |
|---|
| Pectoral-fin spine length | 26.7 | 30.4 | 28.1 | 1.0 | 24.9 | 24.9 | 29.9 | 28.2 | 1.5 | 26.1 | 27.4 | 26.8 | 0.6 | 25.2 | 25.2 | 30.5 | 27.8 | 1.7 |
|---|
| Pelvic-fin unbranched ray length | 16.8 | 19.7 | 18.3 | 1.0 | 15.0 | 13.7 | 17.3 | 15.5 | 1.1 | 16.4 | 19.6 | 17.8 | 1.6 | 14.5 | 14.5 | 17.1 | 15.9 | 0.9 |
|---|
| Anal-fin unbranched ray length | 16.1 | 19.3 | 17.5 | 1.1 | 16.6 | 14.8 | 19.6 | 16.7 | 1.7 | 17.7 | 18.6 | 18.0 | 0.4 | 15.1 | 15.1 | 19.8 | 17.3 | 1.2 |
|---|
| Caudal-peduncle length | 28.7 | 32.3 | 30.4 | 1.2 | 30.0 | 28.1 | 31.3 | 30.3 | 1.2 | 28.9 | 31.2 | 30.2 | 1.2 | 29.5 | 28.4 | 35.9 | 30.9 | 2.1 |
|---|
| Caudal-peduncle depth | 10.3 | 11.5 | 10.8 | 0.4 | 10.1 | 9.7 | 11.0 | 10.3 | 0.4 | 10.0 | 10.7 | 10.3 | 0.3 | 9.5 | 9.3 | 11.0 | 9.8 | 0.5 |
|---|
| Caudal-peduncle width | 6.7 | 7.4 | 7.1 | 0.2 | 6.8 | 5.9 | 7.2 | 6.6 | 0.4 | 4.7 | 7.2 | 5.8 | 1.3 | 6.5 | 4.4 | 6.9 | 5.7 | 0.7 |
|---|
| Body depth at dorsal-fin origin | 15.0 | 18.3 | 16.9 | 1.1 | 15.8 | 15.8 | 19.2 | 17.1 | 1.1 | 15.8 | 18.3 | 17.1 | 1.3 | 17.5 | 15.0 | 18.7 | 16.9 | 1.0 |
|---|
| Body width at dorsal-fin origin | 16.2 | 19.8 | 18.9 | 1.0 | 19.5 | 19.5 | 22.7 | 21.0 | 0.9 | 17.9 | 19.6 | 18.7 | 0.9 | 22.5 | 16.9 | 23.8 | 20.4 | 2.1 |
|---|
| Percents of Head length |
|---|
| Head depth | 42.2 | 52.1 | 46.3 | 3.0 | 45.7 | 41.4 | 48.1 | 45.4 | 2.4 | 44.1 | 51.7 | 47.4 | 3.9 | 45.8 | 42.0 | 52.8 | 45.1 | 3.4 |
|---|
| Snout length | 47.3 | 50.4 | 48.5 | 1.0 | 50.2 | 47.1 | 53.2 | 50.2 | 1.8 | 44.5 | 50.5 | 47.7 | 3.0 | 48.4 | 47.4 | 50.5 | 48.7 | 1.0 |
|---|
| Orbital diameter | 14.0 | 15.1 | 14.4 | 0.3 | 12.3 | 12.3 | 14.1 | 13.1 | 0.6 | 13.6 | 14.4 | 13.9 | 0.4 | 12.3 | 11.3 | 16.0 | 13.1 | 1.2 |
|---|
| Interorbital width | 38.8 | 45.8 | 42.3 | 2.1 | 40.9 | 38.4 | 44.0 | 41.2 | 2.0 | 37.3 | 43.4 | 39.5 | 3.3 | 44.7 | 35.9 | 44.7 | 39.1 | 3.1 |
|---|
| Internareal width | 6.3 | 10.2 | 8.7 | 1.1 | 14.4 | 12.3 | 15.9 | 13.9 | 1.0 | 10.2 | 13.0 | 11.5 | 1.4 | 12.4 | 10.7 | 13.5 | 12.3 | 0.9 |
|---|
| Prenasal length | 28.9 | 32.9 | 30.5 | 1.2 | 35.8 | 31.6 | 36.4 | 34.4 | 1.5 | 28.4 | 33.2 | 31.2 | 2.5 | 30.4 | 29.7 | 34.1 | 31.7 | 1.2 |
|---|
| Barbel length | 8.1 | 10.9 | 9.9 | 0.8 | 9.2 | 6.4 | 10.6 | 8.9 | 1.3 | 6.2 | 15.2 | 11.7 | 4.8 | 9.2 | 4.9 | 17.0 | 10.2 | 3.4 |
|---|