Phylogenetic relationship of catshark species of the genus Scyliorhinus (Chondrichthyes, Carcharhiniformes, Scyliorhinidae) based on comparative morphology

Autor(es)

Soares, Karla D. A. ^[1] ; de Carvalho, Marcelo R. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Lab Ictiol, Rua Matao, Trav 14, 101, BR-05508090 Sao Paulo - Brazil

^[2] de Carvalho, Marcelo R., Univ Sao Paulo, Inst Biociencias, Dept Zool, Lab Ictiol, Rua Matao,Trav 14,101, BR-05508090 Sao Paulo, Brazil.Soares, Karla D. A., Univ Sao Paulo, Inst Biociencias, Dept Zool, Lab Ictiol, Rua Matao, Trav 14, 101, BR-05508090 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ZOOSYSTEMATICS AND EVOLUTION; v. 96, n. 2, p. 345-395, JUN 19 2020.
• Citações Web of Science: 0

Resumo

The genus Scyliorhinus is part of the family Scyliorhinidae, the most diverse family of sharks and of the subfamily Scyliorhininae along with Cephaloscyllium and Poroderma. This study reviews the phylogenetic relationships of species of Scyliorhinus in the subfamily Scyliorhininae. Specimens of all Scyliorhinus species were examined as well as specimens of four of the 18 species of Cephaloscyllium, two species of Poroderma, representatives of almost all other catshark (scyliorhinid) genera and one proscylliid (Proscyllium habereri). A detailed morphological study, including external and internal morphology, morphometry and meristic data, was performed. From this study, a total of 84 morphological characters were compiled into a data matrix. Parsimony analysis was employed to generate hypotheses of phylogenetic relationships using the TNT 1.1. Proscyllium habereri was used to root the cladogram. The phylogenetic analysis, based on implied weighting (k = 3; 300 replications and 100 trees saved per replication), resulted in three equally most parsimonious cladograms with 233 steps, with a CI of 0.37 and an RI of 0.69. The monophyly of the subfamily Scyliorhininae is supported as well as of the genus Scyliorhinus, which is proposed to be the sister group of Cephaloscyllium. The phylogenetic relationships amongst Scyliorhinus species are presented for the first time. (AU)

• Processo FAPESP: 15/21314-9 - Taxonomia e morfologia de Scyliorhinus Blainville, 1816 do Atlântico centro-oeste (Chondrichthyes; Carcharhiniformes; Scyliorhinidae)
• Beneficiário: Karla Diamantina de Araújo Soares
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 16/22214-0 - Taxonomia e Morfologia de Scyliorhinus Blainville, 1816 do Atlântico Norte Oriental (Chondrichthyes; Carcharhiniformes; Scyliorhinidae)
• Beneficiário: Karla Diamantina de Araújo Soares
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 14/20316-5 - Taxonomia e morfologia do gênero Scyliorhinus Blainville, 1816 (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
• Beneficiário: Karla Diamantina de Araújo Soares
• Modalidade de apoio: Bolsas no Brasil - Doutorado