A new species of Pimelodella (Siluriformes: Heptapteridae) from the Guiana Shield, Brazil

Author(s)

Slobodian, Veronica ^[1] ; Akama, Alberto ^[2] ; Dutra, Guilherme Moreira ^[3]

Affiliation

^[1] Univ Sao Paulo, Museu Zool, Secao Peixes, Av Nazare 481, BR-04263000 Sao Paulo, SP - Brazil

^[2] Museu Paraense Emilio Goeldi, Setor Ictiol, Ave Magalhaes Barata 376, BR-66040170 Belem, Para - Brazil

^[3] Museu Paraense Emilio Goeldi, Programa Capacitacao Inst, Coordenacao Zool, Ave Magalhaes Barata 376, BR-66040170 Belem, Para - Brazil

• Document type: Journal article
• Source: Zootaxa; v. 4338, n. 1, p. 85-100, OCT 24 2017.
• Web of Science Citations: 2

Abstract

A new species of Pimelodella is described from the Rio Ipitinga, Rio Jari basin, a left bank tributary of the Rio Amazonas in Brazil. The new species is diagnosed from all congeners by having a dark oval mark on the humeral region. It also differs from all congeners by a unique set of characters, including the presence of 47 to 49 total vertebrae, unpigmented areas dorsally and ventrally adjacent to the dark midlateral stripe, and maxillary barbels reaching at least to vertical through caudal fin insertion. Faunal similarities between the southern part of the eastern Guiana Shield and coastal drainages in the Guianas and Suriname are discussed. (AU)

• FAPESP's process: 15/26804-4 - Integrating morphological and molecular data in the systematics of three siluriform subgroups: subfamily Copionodontinae (Trichomycteridae), genus Pimelodella (Heptapteridae) and family Cetopsidae
• Grantee: Mario Cesar Cardoso de Pinna
• Support Opportunities: Regular Research Grants
• FAPESP's process: 13/18623-4 - Taxonomic revision of Pimelodella (Siluriformes: Heptapteridae): an integrative proposal to delimit species using a multidisciplinary strategy
• Grantee: Veronica de Barros Slobodian Motta
• Support Opportunities: Scholarships in Brazil - Doctorate