Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Pterygoplichthys anisitsi comb.nov.

new combination:
Pterygoplichthys anisitsi Eigenmann & Kennedy, 1903
Listed by López et al. (2003) in the genus Liposarcus.

remarks:
Reason for comb.nov. from publication: “…Of the three genera recognized by Weber, only Liposarcus is monophyletic in this analysis, and support is weak (DI=1,Fig. 36). If the monophyly is forced upon both Glyptoperichthys and Pterygoplichthys sensu Weber (1991, 1992), there are no characteristics that would be synapomorphic for either genus. Thus, in order to retain Liposarcus and Glyptoperichthys as valid taxa, a new genus would have to be described for P. zuliaensis + P. undecimalis (these two taxa are most likely to be sisters; Weber, 1992), and a second would have to be described for G. punctatus. Given that the species of Pterygoplichthys, Glyptoperichthys, and Liposarcus form a well-diagnosed clade and the fact that they are all readily identifiable from most other species of the Loricariidae by their high number of dorsal-fin rays (ten or more, rarely 9 vs. 7), it is more practical to refer the species to a single genus (Pterygoplichthys) and to place Liposarcus and Glyptoperichthys in the synonymy of Pterygoplichthys.”

published in:
Armbruster, J. W. (2004):
Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae.
Zoological Journal of the Linnean Society 141: 1-80

abstract (from publication):
A phylogenetic analysis of nearly all genera of the Hypostominae and the Ancistrinae is provided based on osteology, external anatomy, and digestive tract anatomy. The results suggest that the Hypostominae is a paraphyletic assemblage. Delturus and Upsilodus form a monophyletic group sister to all other loricariids. Hemipsilichthys, Isbrueckerichthys, Kronichthys, and Pareiorhina form a monophyletic group with Neoplecostomus and the Hypoptopomatinae and are transferred to the Neoplecostominae. The remainder of the Hypostominae is made paraphyletic by the continuing recognition of the Ancistrinae. Ancistrinae is returned to the Hypostominae and recognized as a tribe, Ancistrini. In addition, four new tribes (Corymbophanini, Hypostomini, Pterygoplichthini, and Rhinelepini) are described. Hypostomus is also paraphyletic, the bulk of it forming a monophyletic clade with Aphanotorulus, Cochliodon, and Isorineloricaria. All of the potential monophyletic groups within Hypostomus grade into one another; therefore, Aphanotorulus, Cochliodon, and Isorineloricaria are placed in the synonymy of Hypostomus. Pterygoplichthys and Glyptoperichthys are also polyphyletic, and Liposarcus and Glyptoperichthys are recognized as synonyms of Pterygoplichthys. Sister to Pterygoplichthys is the Hemiancistrus annectens group (including Hypostomus panamensis) which represents an undescribed genus. The phylogeny presented is compared with previous hypotheses.

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