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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes

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Author(s):
Slobodian, Veronica [1, 2] ; Pastana, Murilo N. L. [2]
Total Authors: 2
Affiliation:
[1] Univ Brasilia, Inst Ciencias Biol, Dept Ciencias Fisiol, Lab Anat Comparat Vertebrados, Campus Univ Darcy Ribeiro, BR-70910900 Brasilia, DF - Brazil
[2] Univ Sao Paulo, Museu Zool, Secao De Peixes, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Fish Biology; v. 93, n. 5, p. 901-916, NOV 2018.
Web of Science Citations: 1
Abstract

A new species of Pimelodella is described from several right-bank tributaries of the Rio Madeira basin in Amazonas and Rondonia states, Brazil. The new species differs from all congeners by the supraoccipital process not reaching the anterior nuchal plate, 43-45 total vertebrae, maxillary barbels reaching between adpressed anal-fin terminus and caudal-fin origin, epiphyseal branch of supraorbital laterosensory canal emerging as two distantly-positioned pores and a conspicuous black mark at distal third of dorsal fin, between dorsal-fin spine and third branched ray. A detailed description of the cephalic laterosensory system of the new species is provided and contrasted with other Siluriformes and Ostariophysi. A discussion regarding homology of the catfish upper pectoral girdle bones is offered in light of modifications of the postotic and supratemporal lateral-line canals. Based on the placement of the pterotic branch of the postotic canal, it is concluded that the extrascapula is fused to the pterotic in Siluriformes. Results presented herein offer an example of how lateral-line morphology can be used as a compelling source of evidence to help determine homology of cranial and upper pectoral girdle bones. (AU)

FAPESP's process: 16/01073-0 - Taxonomy of Pimelodella Eigenmann & Eigenmann (1888): Comparative Anatomy and delimitation of Pimelodella
Grantee:Veronica de Barros Slobodian Motta
Support type: Scholarships abroad - Research Internship - Doctorate
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 type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi)
Grantee:Naercio Aquino Menezes
Support type: Research Projects - Thematic Grants
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 type: Regular Research Grants
FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
Grantee:Naercio Aquino Menezes
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 12/22685-2 - Canals and pores of the cephalic laterosensory system of Characiformes (Ostariophysi): anatomy and phylogenetic information.
Grantee:Murilo Nogueira de Lima Pastana
Support type: Scholarships in Brazil - Master
FAPESP's process: 13/26548-2 - Pores of the cephalic laterosensory system of Ostariophysi (Teleostei): an in-group and out-group analysis
Grantee:Murilo Nogueira de Lima Pastana
Support type: Scholarships abroad - Research Internship - Master's degree