Hisonotus insperatus: New Species, from the Upper Rio Parana Basin (Pisces: Ostariophysi: Loricariidae)

Hisonotus insperatus, new species, is distinguished from all the other species of the genus Hisonotus Eigenmann and Eigenmann by the combination of a pair of rostral plates at the tip of the snout, the complete median plate series to base of the caudal fin, a lateral line that is continuous along th...

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Veröffentlicht in:Copeia 2003-09, Vol.2003 (3), p.588-593
Hauptverfasser: Britski, HA, Garavello, J C
Format: Artikel
Sprache:eng
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Zusammenfassung:Hisonotus insperatus, new species, is distinguished from all the other species of the genus Hisonotus Eigenmann and Eigenmann by the combination of a pair of rostral plates at the tip of the snout, the complete median plate series to base of the caudal fin, a lateral line that is continuous along the middle of the body, a pectoral spine smooth and lacking odontodes along its posterior dorsal margin for a distance more than one-half of its width, and a scapular bridge that is completely exposed, sometimes with a very reduced median pair of arrector fossae.Original Abstract: Coletas recentes procedentes de riachos e corregos da bacia do Alto Rio Parana no estado de Sao Paulo revelaram uma nova especie pertencente ao genero Hisonotus Eigenmann e Eigenmann. A especie se distingue das demais do genero por possuir um par de placas rostrais na ponta do focinho, a serie mediana de placas completa, linha lateral nao interrompida no meio do corpo, superficie dorsal do aculeo peitoral lisa (sem odontodios) ao longo de sua margem posterior por mais de metade de sua largura e ponte escapular inteiramente exposta ou com um par de forames reduzidos.
ISSN:0045-8511
DOI:10.1043/0045-8511(2003)003(0588:HINSFT)2.0.CO;2