@ARTICLE{TreeBASE2Ref20936, author = {Tianpei Mo}, title = {Anatomy, relationships and systematics of the Bagridae (Teleostei: Siluroidei) with a hypothesis of siluroid phylogeny}, year = {1991}, keywords = {}, doi = {}, url = {http://}, pmid = {}, journal = {Theses Zoologicae}, volume = {17}, number = {}, pages = {1--266}, abstract = {The catfishes of the family "Bagridae", traditionally recognised as a primitive group, are widely distributed in Africa and Asia, and currently include over 200 species, in 32 genera. Lack of unambiguous diagnostic features for the taxon and its confusing systematic status have hindered progres of the phylogenetic study of catfishes which in recent years has become a vigorously pursued subject in ichthyology. This thesis aims at defining the family, establishing its systematic status, and reconstructin its phylogenetic intra- and inter-relationships. Based on the result of analyses of over 200 anatomical characters, the taxa previously assigned to the family Bagridae are recognised as constituting three families, the Bagridae, Claroteidae and Austroglanididae, which are explicitly defined by synapomorphies. Monophyly, phylogeny and relationships of these three families are proposed, and cladograms are produced and discussed. The osteology of Bagrus bayad, as a reference for comparison, is described and discussed. The osteology of Bagrus bayad, as a reference for comparison, is described and discussed. The Bagridae is rediagnosed to include 15 Asiatic genera and a single African genus, Bagrus. Olyra (Olyridae) and Neotropius (Schilbeidae) are included in the rediagnosed Bagridae. Horabagrus is recognised as being closely related to Pseudeutropius, both of which are excluded from the Bagridae. Mystus and Leiocassis are each respectively divided into two genera since otherwise they are nonmonophyletic. New taxa are proposed, a bagrid genus Nanobagrus to accommodate Leiocassis armatus from Borneo and family Austroglanididae for the South African Austroglanis. Heterobagrus is synonymized with Mystus, Coreobagrus with Pseudobagrus, Pardigianis with Clarotes, and Gnathobarus and Rheoglanis with Amarginops. Leptoglanis and Zaireichthys are, on the basis of uniquely derived features, hypothesized as sister taxa phylogenetically close to the Amphiliidae, and are accordingly assigned to that family. The twelve other valid African genera, which are mostly rediagnosed on the basis of synapomorphies, are included within the Claroteidae which is subdivided into two monophyletic subfamilies, the Claroteinae and Auchenoglaninae. Phylogenetic taxonomy of the Bagridae, Claroteidae and Austroglanididae with new diagnoses and re-ordered taxa, at the generic level and above, are provided. Relationships of existing siluroid families are discussed. Provisional cladograms, based on the result of an analysis of 126 characters or character complexes, show that the three families are related at different levels within the Siluroidei, and that the Bagridae is far more-advanced than was traditionally believed. The Helogeneidae, instead of Hypsidoris as is currently hypothesized, is parsimoniously resolved as the second basal taxon within the Siluroidei.} }

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