An appraisal of the phylogenetic relationships of Hypoptopomatini cascudinhos with description of two new genera and three new species (Siluriformes: Loricariidae)
Author
Delapieve, Maria Laura S.
PUCRS, Laboratório de Sistemática de Vertebrados, Av. Ipiranga, 6681, 90619 - 900 Porto Alegre, RS, Brazil.
laura.delapieve@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.
PUCRS, Laboratório de Sistemática de Vertebrados, Av. Ipiranga, 6681, 90619 - 900 Porto Alegre, RS, Brazil.
reis@pucrs.br
text
Neotropical Ichthyology
2017
2017-12-21
15
4
e 170079
1
38
http://dx.doi.org/10.1590/1982-0224-20170079
journal article
310390
10.1590/1982-0224-20170079
5bde94f0-a82c-4d20-938f-a77cee0811aa
1982-0224
15642912
Tab. 2. Meristics of holotype (H) and paratypes of Leptotocinclus ctenistus, L. madeirae and Nannoxyropsis acicula. SD = standard deviation.| Count | Leptotocinclus ctenistus n=48 | Leptotocinclus madeirae n=28 | Nannoxyropsis acicula n = 31 |
|---|
| H | Low | High | Mean | SD | H | Low | High | Mean | SD | H | Low | High | Mean | SD |
|---|
| Premaxillary teeth | 17/21 | 17 | 26 | 20 | 1.8 | 20/21 | 17 | 24 | 20 | 1.7 | 16/17 | 11 | 17 | 15 | 1.7 |
|---|
| Dentary teeth | 19 | 14 | 25 | 18 | 1.9 | 21/22 | 14 | 23 | 18 | 2.2 | 14/15 | 10 | 16 | 13 | 1.4 |
|---|
| Plates in median lateral series | 23 | 22 | 23 | 22 | 0.3 | 22 | 21 | 22 | 22 | 0.5 | 21 | 20 | 22 | 21 | 0.5 |
|---|
| Plates in mid-dorsal series | 4 | 3 | 4 | 4 | 0.2 | 4 | 4 | 4 | 4 | 0.0 | 3 | 3 | 3 | 3 | 0.0 |
|---|
| Plates in dorsal series | 19 | 18 | 19 | 19 | 0.4 | 18 | 18 | 19 | 18 | 0.2 | 17 | 17 | 19 | 18 | 0.4 |
|---|
| Plates in mid-ventral series | 14 | 13 | 15 | 14 | 0.3 | 14 | 13 | 15 | 14 | 0.5 | 12 | 12 | 14 | 13 | 0.4 |
|---|
| Plates in ventral series | 20 | 18 | 20 | 19 | 0.5 | 18 | 18 | 19 | 18 | 0.2 | 18 | 18 | 19 | 18 | 0.4 |
|---|
| Plates between anal-and-caudal fin series | 11 | 10 | 12 | 11 | 0.5 | 10 | 9 | 11 | 10 | 0.4 | 10 | 10 | 11 | 10 | 0.4 |
|---|
| Plates at dorsal-fin base | 5 | 4 | 5 | 4 | 0.3 | 5 | 4 | 5 | 5 | 0.3 | 4 | 3 | 4 | 4 | 0.2 |
|---|
| Plates at anal-fin base | 3 | 2 | 3 | 2 | 0.5 | 2 | 2 | 2 | 2 | 0.0 | 2 | 2 | 2 | 2 | 0.0 |
|---|
| Predorsal plates | 3 | 2 | 3 | 3 | 0.1 | 3 | 3 | 3 | 3 | 0.0 | 3 | 3 | 3 | 3 | 0.0 |
|---|
| Plates lateral abdominal series | 4/5 | 2 | 6 | 4 | 0.8 | 2 | 1 | 3 | 2 | 0.4 | 5 | 2 | 6 | 4 | 0.8 |
|---|
| Plates in median abdominal series | 4 | 3 | 9 | 5 | 1.2 | 0 | 0 | 0 | 0 | 0.0 | 6 | 1 | 6 | 4 | 1.2 |
|---|
| Pectoral-fin rays | 6 | 6 | 6 | 6 | 0.0 | 6 | 6 | 6 | 6 | 0.0 | 6 | 6 | 6 | 6 | 0.0 |
|---|
| Dorsal-fin rays | 7 | 7 | 7 | 7 | 0.0 | 7 | 6 | 7 | 7 | 0.2 | 7 | 7 | 7 | 7 | 0.0 |
|---|
| Pelvic-fin rays | 5 | 5 | 5 | 5 | 0.0 | 5 | 5 | 5 | 5 | 0.0 | 5 | 5 | 5 | 5 | 0.0 |
|---|
| Anal-fin rays | 5 | 5 | 5 | 5 | 0.0 | 5 | 5 | 5 | 5 | 0.0 | 5 | 5 | 5 | 5 | 0.0 |
|---|
| Caudal-fin rays | 12 | 11 | 12 | 12 | 0.2 | 12 | 12 | 12 | 12 | 0.0 | 14 | 14 | 14 | 14 | 0.0 |
|---|