Rui Diogo 
Morphological Evolution, Adaptations, Homoplasies, Constraints, and Evolutionary Trends [PDF ebook] 
Catfishes as a Case Study on General Phylogeny & Macroevolution

The major aim of this work is, to help clarify the interrelationships of catfishes, with major implications on the study of the general evolution of these fishes. A great part of this work, therefore, deals with a cladistic analysis of catfish higher-level phylogeny based on extensive morphological data, in which are included some terminal taxa not