Phylogenetic Relationships of the Suckermouth Armored Catfishes of the Rhinelepis Group (Loricariidae: Hypostominae)

The loricariid catfish genera Pogonopoma, Pogonopomoides, Pseudorinelepis, and Rhinelepis form a monophyletic clade within the subfamily Hypostominae. Phylogenetic analysis of morphological characters reveals the following relationships: (Pseudorinelepis + (Rhinelepis + (Pogonopoma + Pogonopomoides))). These nodes are strongly supported with several synapomorphies, and each genus is redescribed and diagnosed. Phylogenetic analysis revealed a split between the Amazonian genus (Pseudorinelepis) and the remainder of the genera which occur in southeastern Brazil.

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