Hypostomus sertanejo(Siluriformes: Loricariidae), new armoured catfish species from north-eastern Brazil
| Autor: | Cláudio Henrique Zawadzki, Telton Pedro Anselmo Ramos, M. Sabaj |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Premaxilla Loricariidae 010607 zoology Ancistrus Anatomy Aquatic Science Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Spine (zoology) medicine.anatomical_structure medicine Hypostominae Hypostomus geographic locations Ecology Evolution Behavior and Systematics Catfish |
| Zdroj: | Journal of Fish Biology. 91:317-330 |
| ISSN: | 0022-1112 |
| DOI: | 10.1111/jfb.13349 |
| Popis: | A re-evaluation of the armoured catfish species of Hypostomus in the Rio Jaguaribe, north-eastern Brazil, was prompted by the discovery of specimens with pale spots on a dark background collected from that basin c. 1936 and deposited at the Academy of Natural Sciences of Philadelphia. Recent field collections in the Rio Jarguaribe basin confirmed the presence of the pale-spotted specimens and its distinctiveness as a new species. Hypostomus sertanejo n. sp. is diagnosed from other species of Hypostomus by having fins and dermal-plated regions of head and body with pale spots or vermiculations on darker background, teeth slender, asymmetrically bicuspid and numerous (34-75) on dentary and premaxilla, depressed dorsal-fin spine not reaching adipose spine, unbranched pectoral-fin spine longer than unbranched pelvic-fin ray, seven branched dorsal-fin rays and one (rarely two) predorsal plate(s) bordering supraoccipital. Ancistrus salgadae Fowler 1941 is hypothesized to be a junior synonym of Hypostomus carvalhoi (Miranda-Ribeiro, 1937), a dark-spotted Hypostomus described from the Rio Granjeiro, a tributary to the upper Rio Salgado. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text