Pyxiloricaria Isbruecker & Nijssen, 1984

Raphael Covain & Sonia Fisch-Muller, 2007, The genera of the Neotropical armored catfish subfamily Loricariinae (Siluriformes: Loricariidae): a practical key and synopsis., Zootaxa 1462, pp. 1-40: 34

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Pyxiloricaria Isbruecker & Nijssen, 1984


Pyxiloricaria Isbruecker & Nijssen, 1984  ZBK  .

Type species: Pyxiloricaria menezesi Isbruecker & Nijssen, 1984  ZBK  .

Holotype: MZUSP 26800, Brazil, Mato Grosso do Sul, Miranda . 

Gender: feminine.

This monotypic genus is only known from the Paraguay River drainage. Pyxiloricaria menezesi  ZBK  inhabits sandy substrates and is sympatric with representatives of the genus Pseudohemiodon  ZBK  . Sexual dimorphism and reproductive ecology are unknown. In the Pseudohemiodon  ZBK  group, Pyxiloricaria  ZBK  more closely resembles Pseudohemiodon  ZBK  than other representatives of the group. Moreover, with Loricaria  ZBK  , it shares filamentous lips, inconspicuous fringed barbels on the lower lip, and shorter maxillary barbels. The phylogenetic position of Pyxiloricaria  ZBK  remains uncertain, and its presence in the Pseudohemiodon  ZBK  group could be artificial, given the characters shared with Loricaria  ZBK  . Herein, following Isbrücker & Nijssen (1984), it is maintained in the Pseudohemiodon  ZBK  group.