Produção Nacional
Revisado por pares
A new species of Hisonotus (Siluriformes, Loricariidae) from rio São Francisco basin, Brazil
2015; Pensoft Publishers; Volume: 498; Linguagem: Inglês
10.3897/zookeys.498.6896
ISSN1313-2989
AutoresFábio Fernandes Roxo, Gabriel da Costa e Silva, Cláudio Oliveira,
Tópico(s)Ichthyology and Marine Biology
ResumoA new species of Hisonotus is described from the rio São Francisco basin. The new species can be distinguished from congeners by having (1) a unique coloration pattern of caudal fin with one black spot extending from its origin to the ventral lobe and two dark spots at the end of the lobe's rays; (2) odontodes forming longitudinally aligned rows on head and trunk; (3) a functional V-shaped spinelet; (4) a single rostral plate at the tip of the snout; (5) by lacking contrasting dark geometric spots on the anterodorsal region of the body; (6) a lower caudal-peduncle depth; and (7) lower counts of the lateral median plates and (8) higher premaxillary and dentary teeth. The new species is the second described species of the genus Hisonotus in the rio São Francisco basin. It was found inhabiting the marginal vegetation of the rio São Francisco and three of its tributary, rio das Velhas, rio Paraopeba and rio Formoso.
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