A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil

Author(s)

Melo, Marcelo R. S. ; Buckup, Paulo A. ; Oyakawa, Osvaldo T.

• Document type: Journal article
• Source: Neotropical Ichthyology; v. 14, n. 3 2016.
• Web of Science Citations: 5

Abstract

ABSTRACT A new species of Characidium is described based on specimens obtained from the highland streams of the Serra do Mar, Atlantic Forest Biome, in Paraná State, Southern Brazil. The new species is possibly a member member of the C. lauroi group, which is diagnosed by having the isthmus unscaled, bars poorly marked, and spots on sides of body, and is composed by four additional species: C. japuhybense ; C. lauroi ; C. oiticicai ; and C. schubarti . The new species differs from its congeners with naked isthmus, except C. helmeri , by having 15-18 principal caudal-fin rays; and 10-12 pectoral-fin rays; and from C. helmeri , by having a slender body, tip of pectoral fin not reaching origin of pelvic fin, tip of pelvic fin not reaching beyond anus, supraorbital present and well developed, and by lacking vertically elongated dashes on sides of body. The new species is known from tributaries of the rio Jordão, in the rio Iguaçu Basin, and rio Taquari, a tributary of the rio Ribeira de Iguape coastal drainage. (AU)

• FAPESP's process: 14/15168-7 - Platform for studies on marine biodiversity of the Southeastern Brazilian coast and the Antarctic region
• Grantee: Mario Katsuragawa
• Support Opportunities: Research Program on Global Climate Change - Regular Grants
• FAPESP's process: 00/04300-9 - Diversity of fish in streams and headwaters in the basin of the river Ribeira de Iguape in the State of São Paulo
• Grantee: Osvaldo Takeshi Oyakawa
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants