A new species of Acestridium Haseman, 1911 (Loricariidae: Hypoptopomatinae) from the Eastern Amazon basin, Brazil
Author
Rodriguez, Mónica S.
Laboratório de Ictiologia, Pontifícia Universidade Católica do Rio Grande do Sul. P. O. Box 1429, 90619 - 900 Porto Alegre, RS, Brazil
rodriguez.monica@yahoo.com.ar
Author
Reis, Roberto E.
Laboratório de Ictiologia, Pontifícia Universidade Católica do Rio Grande do Sul. P. O. Box 1429, 90619 - 900 Porto Alegre, RS, Brazil.
text
Neotropical Ichthyology
2007
2007-12-31
5
4
429
434
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000400001&lng=en&tlng=en
journal article
312244
10.1590/S1679-62252007000400001
3b3b2db9-e566-472a-8e1c-cbdefef592ba
1982-0224
5419443
Table 1. Descriptive morphometrics of holotype and paratypes of Acestridium triplax. Values are given as percents of standard length or head length. SD = standard deviation. | Holotype | N | Min | Max | Mean | SD |
|---|
| Standard length (mm) | 55.5 | 30 | 45.3 | 55.4 | 49.8 | - |
|---|
| Percents of Standard Length |
|---|
| Predorsal length | 49.6 | 30 | 42.7 | 51.2 | 48.7 | 1.4 |
|---|
| Postdorsal length | 52.4 | 30 | 42.1 | 47.9 | 44.9 | 1.3 |
|---|
| Postanal length | 48.8 | 30 | 41.0 | 45.6 | 43.4 | 1.2 |
|---|
| Body width at dorsal-fin origin | 7.8 | 30 | 7.1 | 9.1 | 8.0 | 0.4 |
|---|
| Body depth at dorsal-fin origin | 5.6 | 30 | 5.4 | 6.5 | 5.9 | 0.3 |
|---|
| Body width at anal-fin origin | 7.2 | 30 | 6.6 | 8.4 | 7.5 | 0.4 |
|---|
| Body depth at anal-fin origin | 4.8 | 30 | 4.2 | 5.7 | 5.2 | 0.3 |
|---|
| Preventral length | 48.2 | 30 | 37.6 | 49.2 | 47.3 | 2.2 |
|---|
| Supraoccipital-dorsal fin distance | 15.0 | 30 | 13.7 | 17.1 | 15.5 | 0.8 |
|---|
| Minimum depth of caudal peduncle | 1.1 | 30 | 1.0 | 1.2 | 1.1 | 0.1 |
|---|
| Length of dorsal-fin spine | 12.4 | 29 | 9.8 | 13.4 | 11.6 | 0.9 |
|---|
| Length of pectoral-fin spine | 7.4 | 30 | 6.7 | 9.1 | 7.6 | 0.6 |
|---|
| Length of first ventral-fin ray | 6.9 | 30 | 5.8 | 7.9 | 6.7 | 0.5 |
|---|
| Length of first anal-fin ray | 8.8 | 30 | 7.8 | 10.2 | 8.8 | 0.6 |
|---|
| Snout tip to eye distance | 25.9 | 30 | 20.2 | 22.5 | 21.3 | 0.6 |
|---|
| Pectoral-fin origin to pelvic-fin origin distance | 10.4 | 30 | 10.3 | 12.3 | 11.2 | 0.5 |
|---|
| Eye to dorsal-fin origin distance | 22.7 | 30 | 21.9 | 26.3 | 23.7 | 0.8 |
|---|
| Oral disk width | 6.7 | 30 | 6.1 | 8.4 | 7.1 | 0.6 |
|---|
| Head length | 33.9 | 30 | 31.0 | 34.1 | 32.4 | 0.8 |
|---|
| Percents of Head Length |
|---|
| Head depth | 17.3 | 30 | 17.6 | 22.5 | 19.4 | 1.2 |
|---|
| Head width | 27.0 | 30 | 27.8 | 33.6 | 30.3 | 1.3 |
|---|
| Interorbital width | 17.4 | 30 | 17.3 | 21.2 | 19.5 | 1.1 |
|---|
| Length of lower armored snout | 25.6 | 30 | 16.7 | 25.9 | 22.6 | 2.4 |
|---|
| Maximum eye diameter | 7.9 | 30 | 7.6 | 9.9 | 8.6 | 0.6 |
|---|
| Length of postorbital head | 24.9 | 30 | 22.6 | 27.9 | 24.9 | 1.3 |
|---|