A taxonomic and morphological redescription of Potamotrygon falkneri Castex & Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Author
da Silva, João Paulo C. B.
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo. Rua do Matão, Travessa 14, 101, 05508 - 900 São Paulo, SP, Brazil
jpcbs@ib.usp.br
Author
de Carvalho, Marcelo R.
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo. Rua do Matão, Travessa 14, 101, 05508 - 900 São Paulo, SP, Brazil
mrcarvalho@ib.usp.br
text
Neotropical Ichthyology
2011
2011-03-31
9
1
209
232
https://doi.org/10.1590/s1679-62252011000100021
journal article
313388
10.1590/s1679-62252011000100021
5881ab01-ee4b-437f-b949-5f06c385b9bc
1982-0224
17871481
Table 3. Meristic data of Potamotrygon falkneri. SD = Standard deviation.| Counts | n | Range | Mean | SD |
|---|
| Precaudal vertebrae | 18 | 26-31 | 28.8 | 1.4 |
|---|
| Caudal vertebrae | 17 | 92-105 | 98.1 | 3.4 |
|---|
| Total vertebrae | 17 | 120-136 | 127.0 | 3.7 |
|---|
| Synarcual vertebrae | - | - | - | - |
|---|
| Diplospondylous vertebrae | 17 | 87-100 | 94.4 | 3.9 |
|---|
| Upper tooth rows | 18 | 30-45 | 36.4 | 4.4 |
|---|
| Lower tooth rows | 18 | 29-43 | 36.3 | 4.1 |
|---|
| Propterygial radials | 18 | 42-48 | 46.2 | 1.5 |
|---|
| Mesopterygial radials | 18 | 13-15 | 13.7 | 0.6 |
|---|
| Metapterygial radials | 18 | 35-38 | 37.0 | 0.9 |
|---|
| Total pectoral radials | 18 | 94-100 | 96.9 | 1.5 |
|---|
| Pelvic radials (male) | 13 | 21-23 | 21.7 | 0.6 |
|---|
| Pelvic radials (female) | 5 | 25-27 | 25.8 | 0.8 |
|---|