Author: (Norman, 1926)
Remark: New combination by Isbrücker (1980:45); see complementary descriptions by Heitmans et al. (1983:35, figs. 2-3), including type specimens, and by Le Bail et al. (2000:240, fig.), with biological observations and geographical distribution.
Comments: Not so frequently occurring.  Caught in rapid zones where <i>Pseudancistrus barbatus</i> lives although nothing is known of the ecological relationship between the two species.  The odontodes on the extreme end of its snout and its pectoral spines are very well developed (Ref. 35381).