A taxonomic review of the vampire catfish genus Paracanthopoma Giltay, 1935 (Siluriformes, Trichomycteridae), with descriptions of nine new species and a revised diagnosis of the genus
Author
Pinna, Mário de
Author
Dagosta, Fernando Cesar Paiva
text
Papéis Avulsos de Zoologia
2022
2022-11-04
62
1
90
http://dx.doi.org/10.11606/1807-0205/2022.62.072
journal article
291316
10.11606/1807-0205/2022.62.072
bed58427-648c-4e2e-8ede-6d7471cfdad9
1807-0205
7617440
A32FD3AF-C87F-4C75-9100-D695C3578283
Table 4. Morphometric data of Paracanthopoma capeta. Ranges, mean and SD include holotype.Head subunits were obtained with an ocular micrometer and therefore as projections.Abbreviations:min = minimum value;max = maximum value;n = number of specimens;SD = standard deviation. | n | holotype | min | max | mean | SD |
|---|
| Standard length (mm) | 5 | 14.5 | 14.0 | 18.3 | 15.6 | |
|---|
| Percentages of SL |
|---|
| Total length | 5 | 1.1 | 1.1 | 1.1 | 1.1 | 0.0 |
|---|
| Body depth | 5 | 15.8 | 13.5 | 15.8 | 15.1 | 1.0 |
|---|
| Caudal peduncle length | 5 | 19.3 | 18.0 | 20.4 | 19.3 | 0.8 |
|---|
| Caudal peduncle depth | 5 | 8.8 | 7.0 | 8.8 | 8.0 | 0.7 |
|---|
| Predorsal length | 5 | 72.8 | 72.2 | 74.1 | 73.0 | 0.7 |
|---|
| Preanal length | 5 | 72.8 | 71.8 | 75.9 | 73.8 | 1.7 |
|---|
| Prepelvic length | 5 | 63.2 | 63.2 | 66.9 | 65.2 | 1.6 |
|---|
| Dorsal-fin base length | 5 | 9.6 | 6.4 | 9.6 | 7.6 | 1.4 |
|---|
| Anal-fin base length | 5 | 7.9 | 6.3 | 8.3 | 7.5 | 0.7 |
|---|
| Pectoral-fin length | 5 | 14.9 | 11.9 | 14.9 | 13.2 | 1.1 |
|---|
| Head length | 5 | 21.1 | 16.5 | 21.1 | 18.6 | 2.0 |
|---|
| Percentages of HL |
|---|
| Head width | 5 | 72.0 | 68.0 | 72.0 | 69.8 | 1.8 |
|---|
| Head depth | 5 | 48.2 | 41.2 | 63.9 | 50.8 | 8.2 |
|---|
| Pectoral-fin length | 5 | 70.8 | 63.6 | 81.8 | 71.3 | 6.7 |
|---|
| Interorbital | 5 | 15.7 | 14.0 | 19.3 | 15.6 | 2.2 |
|---|
| Eye diameter | 5 | 16.9 | 16.7 | 21.7 | 18.6 | 2.1 |
|---|
| Snout length | 5 | 34.9 | 34.9 | 50.6 | 41.2 | 6.5 |
|---|
| Mouth width | 5 | 28.9 | 26.3 | 37.3 | 30.6 | 4.1 |
|---|
| Anterior internarial width | 5 | 19.3 | 16.7 | 24.1 | 19.7 | 2.9 |
|---|
| Posterior internarial width | 5 | 12.0 | 9.6 | 12.0 | 11.2 | 1.1 |
|---|
| Standard length (mm) | 12 | 40.23 | 28.8 | 50.8 | 35.5 | |
|---|
| Percentages of SL |
|---|
| Total length | 12 | 1.1 | 1.1 | 1.1 | 1.1 | 0.0 |
|---|
| Body depth | 12 | 8.1 | 7.4 | 10.2 | 8.9 | 0.9 |
|---|
| Caudal peduncle length | 12 | 16.4 | 16.2 | 19.6 | 17.5 | 1.0 |
|---|
| Caudal peduncle depth | 12 | 5.0 | 4.5 | 5.9 | 5.4 | 0.4 |
|---|
| Predorsal length | 12 | 73.1 | 71.1 | 74.8 | 72.5 | 1.2 |
|---|
| Preanal length | 12 | 76.3 | 74.9 | 79.0 | 76.6 | 1.2 |
|---|
| Prepelvic length | 12 | 71.5 | 69.2 | 73.0 | 70.7 | 0.9 |
|---|
| Dorsal-fin base length | 12 | 6.2 | 4.7 | 8.2 | 7.6 | 1.1 |
|---|
| Anal-fin base length | 12 | 3.9 | 3.7 | 5.9 | 4.7 | 0.7 |
|---|
| Head length | 12 | 17.6 | 16.5 | 20.0 | 18.9 | 1.3 |
|---|
| Percentages of HL |
|---|
| Head width | 12 | 56.0 | 55.4 | 66.1 | 61.0 | 3.2 |
|---|
| Head depth | 12 | 27.6 | 20.5 | 32.0 | 24.9 | 3.8 |
|---|
| Interorbital | 12 | 9.2 | 9.2 | 13.2 | 11.6 | 1.2 |
|---|
| Eye diameter | 12 | 12.1 | 9.0 | 13.3 | 10.4 | 1.5 |
|---|
| Snout length | 12 | 43.0 | 38.6 | 48.8 | 44.3 | 2.6 |
|---|
| Mouth width | 12 | 35.0 | 26.7 | 45.3 | 40.3 | 5.8 |
|---|
| Anterior internarial width | 12 | 18.9 | 17.1 | 20.8 | 18.3 | 1.1 |
|---|
| Posterior internarial width | 12 | 5.5 | 5.0 | 8.5 | 6.8 | 1.0 |
|---|