W.R.B. HeitmansH. NijssenI.J.H. Isbrücker
Examination of recently collected material of the mailed catfish genus Lasiancistrus Regan, 1904, from French Guiana and Surinam revealed L. niger (Norman, 1926), and two new species: L. brevispinis and L. longispinis . The three species are described and figured. Lasiancistrus is compared with 13 other genera, forming the tribe Ancistrini of the subfamily Ancistrinae.