Review of the Andean armored catfishes of the genus Dolichancistrus Isbrücker (Siluriformes: Loricariidae)
Author
Ballen, Gustavo A.
Author
Vari, Richard P.
text
Neotropical Ichthyology
2012
2012-09-30
10
3
499
518
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300003&lng=en&tlng=en
journal article
306429
10.1590/S1679-62252012000300003
9381a616-844f-423d-9a34-074ab3deb6b0
1982-0224
10476379
Table 1. Morphometric data for Dolichancistrus atratoensis (n = 14), D. carnegiei (n = 22), D. cobrensis (n= 27) and D. fuesslii (n= 41). Landmarks follow Armbruster (2003). Standard deviation designated as SD.| Measurement | Dolichancistrus atratoensis | D.carnegiei | | D. cobrensis | | D. fuesslii | |
|---|
| Range | Mean | SD | Range | Mean | SD | Range | Mean | SD | Range | Mean | SD |
|---|
| Standard Length | 42.0 - 120.3 | 73.4 | - | 59.4 - 126.4 | 83.5 | - | 47.6 - 92.1 | 61.1 | - | 32.9 - 124.4 | 72.9 | - |
|---|
| Predorsal Length | 39.0 - 46.2 | 43.8 | 2.0 | 41.9 - 45.2 | 43.7 | 0.9 | 42.9 - 46.5 | 44.5 | 0.9 | 41.3 - 47.8 | 44.3 | 1.5 |
|---|
| Head Length | 28.8 - 37.0 | 33.5 | 2.2 | 31.4 - 34.0 | 32.7 | 0.7 | 30.7 - 35.0 | 32.9 | 1.2 | 31.9 - 36.2 | 33.7 | 1.1 |
|---|
| Head-dorsal Length | 8.3 - 12.9 | 10.8 | 1.4 | 7.8 - 12.5 | 10.2 | 1.3 | 9.7 - 12.9 | 11.7 | 0.8 | 9.1 - 12.3 | 10.3 | 0.7 |
|---|
| Cleithral Width | 29.3 - 34.8 | 32.6 | 1.6 | 31.3 - 34.3 | 32.8 | 0.8 | 30.2 - 33.7 | 31.9 | 0.9 | 31.4 - 35.7 | 33.1 | 1.0 |
|---|
| Head-pectoral Length | 26.6 - 34.1 | 30.3 | 2.1 | 27.3 - 31.9 | 29.7 | 1.2 | 27.6 - 31.8 | 29.6 | 1.2 | 28.4 - 34.2 | 30.9 | 1.3 |
|---|
| Thorax Length | 21.5 - 25.5 | 23.3 | 1.0 | 19.8 - 27.8 | 24.2 | 2.0 | 20.1 - 27.2 | 24.7 | 1.9 | 20.0 - 25.9 | 23.0 | 1.6 |
|---|
| Pectoral spine Length | 24.7 - 38.7 | 30.5 | 4.1 | 30.0 - 43.1 | 34.1 | 3.9 | 32.6 - 42.1 | 37.6 | 2.6 | 31.5 - 53.0 | 40.1 | 1.0 |
|---|
| Abdominal Length | 21.1 - 25.2 | 22.6 | 1.3 | 21.9 - 23.8 | 22.8 | 0.5 | 20.7 - 25.7 | 23.8 | 1.2 | 21.9 - 26.0 | 23.8 | 0.9 |
|---|
| Pelvic spine Length | 16.1 - 26.0 | 21.7 | 2.6 | 20.6 - 24.8 | 23.4 | 0.9 | 22.1 - 25.4 | 23.5 | 0.8 | 20.6 - 27.1 | 24.0 | 1.5 |
|---|
| Postanal Length | 24.2 - 31.7 | 27.7 | 2.5 | 25.4 - 30.7 | 29.0 | 1.5 | 25.2 - 28.5 | 26.8 | 0.8 | 25.3 - 30.5 | 28.0 | 1.1 |
|---|
| Anal-fin spine Length | 2.1 - 7.1 | 4.6 | 1.9 | 5.6 - 8.4 | 6.6 | 0.7 | 3.7 - 6.4 | 4.9 | 0.8 | 4.4 - 8.1 | 6.6 | 1.0 |
|---|
| Dorsal-pectoral Distance | 24.2 - 28.3 | 26.5 | 1.1 | 25.5 - 30.0 | 27.4 | 1.4 | 25.9 - 29.1 | 27.5 | 0.8 | 23.2 - 29.3 | 26.8 | 1.5 |
|---|
| Dorsal-pelvic Distance | 18.9 - 24.8 | 21.4 | 2.0 | 18.3 - 26.5 | 21.2 | 2.0 | 16.3 - 22.4 | 19.5 | 1.7 | 16.7 - 23.4 | 20.5 | 1.3 |
|---|
| Dorsal-fin base Length | 20.7 - 28.9 | 25.9 | 2.3 | 22.5 - 25.3 | 23.8 | 0.7 | 22.1 - 29.0 | 25.6 | 1.5 | 21.9 - 30.9 | 25.3 | 2.1 |
|---|
| Dorsal-adipose Distance | 14.6 - 17.8 | 16.3 | 0.9 | 17.0 - 21.3 | 19.1 | 1.1 | 14.3 - 18.6 | 16.6 | 1.2 | 15.6 - 22.2 | 18.0 | 1.7 |
|---|
| Adipose spine Length | 6.6 - 9.1 | 7.4 | 0.7 | 5.9 - 8.5 | 7.1 | 0.7 | 6.8 - 8.4 | 7.8 | 0.4 | 6.0 - 9.0 | 7.6 | 0.8 |
|---|
| Dorsal adipose-caudal Distance | 10.2 - 16.8 | 12.8 | 2.1 | 10.1 - 14.4 | 11.9 | 1.0 | 8.5 - 12.7 | 10.7 | 1.0 | 8.5 - 14.0 | 11.4 | 1.2 |
|---|
| Caudal-peduncle Distance | 9.9 - 13.1 | 11.5 | 1.0 | 10.2 - 13.1 | 11.1 | 0.7 | 9.3 - 11.5 | 10.5 | 0.6 | 9.0 - 11.5 | 10.4 | 0.6 |
|---|
| Ventral Adipose-caudal Distance | 16.3 - 21.0 | 18.7 | 1.4 | 16.1 - 9.9 | 18.3 | 1.2 | 16.2 - 18.6 | 17.8 | 0.5 | 15.4 - 19.4 | 17.1 | 0.9 |
|---|
| Adipose-anal Distance | 14.0 - 20.3 | 17.0 | 1.9 | 14.7 - 18.8 | 16.8 | 0.9 | 15.4 - 18.0 | 17.0 | 0.8 | 15.0 - 19.5 | 17.5 | 1.2 |
|---|
| Dorsal-anal Distance | 11.3 - 15.7 | 13.7 | 1.4 | 12.1 - 13.7 | 13.0 | 0.5 | 12.1 - 13.8 | 13.0 | 0.4 | 11.0 - 14.0 | 12.8 | 0.8 |
|---|
| Pelvic-dorsal Distance | 21.6 - 29.1 | 25.2 | 2.1 | 22.1 - 26.2 | 24.4 | 1.1 | 23.2 - 28.0 | 25.4 | 1.4 | 21.8 - 42.6 | 25.8 | 3.1 |
|---|
| Head-eye Length | 31.6 - 41.1 | 35.5 | 2.6 | 32.2 - 38.3 | 35.3 | 1.5 | 32.8 - 38.8 | 34.9 | 1.3 | 30.0 - 39.5 | 34.2 | 2.2 |
|---|
| Orbit Diameter | 10.9 - 18.0 | 14.1 | 2.1 | 9.3 - 17.3 | 13.4 | 1.9 | 12.1 - 17.3 | 14.0 | 1.5 | 12.1 - 16.3 | 14.5 | 1.3 |
|---|
| Snout Length | 59.8 - 70.2 | 65.9 | 2.6 | 65.5 - 69.9 | 67.4 | 1.5 | 59.7 - 70.6 | 65.0 | 2.3 | 63.1 - 69.6 | 66.8 | 1.5 |
|---|
| Internares Width | 16.3 - 21.3 | 18.4 | 1.6 | 16.4 - 19.4 | 18.3 | 0.8 | 16.8 - 21.7 | 18.4 | 1.2 | 13.2 - 23.4 | 18.4 | 2.2 |
|---|
| Interorbital | 38.6 - 48.0 | 43.2 | 3.3 | 38.8 - 48.0 | 43.8 | 2.2 | 38.3 - 46.7 | 42.6 | 2.2 | 40.2 - 48.4 | 43.0 | 1.6 |
|---|
| Head Depth | 61.4 - 72.6 | 67.5 | 3.1 | 64.4 - 71.9 | 67.8 | 2.2 | 61.0 - 73.7 | 66.2 | 3.4 | 60.8 - 69.5 | 65.3 | 2.3 |
|---|
| Mouth Length | 56.6 - 69.6 | 62.9 | 3.4 | 56.1 - 65.5 | 59.7 | 2.6 | 55.4 - 66.9 | 61.7 | 2.7 | 56.8 - 66.6 | 61.5 | 2.7 |
|---|
| Mouth Width | 68.5 - 82.4 | 75.9 | 4.1 | 79.8 - 88.2 | 85.1 | 2.7 | 70.8 - 85.4 | 78.4 | 3.4 | 74.4 - 88.8 | 80.6 | 4.0 |
|---|
| Barbel Length | 4.6 - 10.7 | 7.6 | 1.9 | 4.9 - 9.1 | 6.7 | 1.0 | 5.4 - 8.8 | 7.4 | 0.9 | 5.1 - 10.9 | 8.4 | 1.4 |
|---|
| Dentary Tooth-cup Length | 25.1 - 32.9 | 29.1 | 2.1 | 27.5 - 32.4 | 29.8 | 1.3 | 24.0 - 30.4 | 27.0 | 1.4 | 27.2 - 36.3 | 30.6 | 2.1 |
|---|
| Premaxillary Tooth-cup Length | 22.6 - 28.0 | 25.6 | 1.8 | 22.0 - 27.8 | 25.6 | 1.5 | 20.3 - 26.6 | 23.4 | 1.5 | 22.9 - 30.4 | 26.3 | 2.1 |
|---|