n = 34
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Lasiancistrus anthrax | Armbruster & Provenzano, 2000 | Pseudolithoxus anthrax | Loricariidae | |
| Lasiancistrus brevispinis | Heitmans, Nijssen & Isbrücker, 1983 | Guyanancistrus brevispinis | Loricariidae | |
| Lasiancistrus caquetae | (Fowler, 1945) | Lasiancistrus schomburgkii | Loricariidae | |
| Lasiancistrus carnegiei | (Eigenmann, 1916) | Dolichancistrus carnegiei | Loricariidae | |
| Lasiancistrus castelnaui | (Miranda Ribeiro, 1911) | Lasiancistrus schomburgkii | Loricariidae | |
| Lasiancistrus caucanus | Eigenmann, 1912 | Lasiancistrus caucanus | Loricariidae | |
| Lasiancistrus daguae | (Eigenmann, 1912) | Cordylancistrus daguae | Loricariidae | |
| Lasiancistrus dumus | Armbruster & Provenzano, 2000 | Pseudolithoxus dumus | Loricariidae | |
| Lasiancistrus fuessi | (Steindachner, 1911) | Dolichancistrus fuesslii | Loricariidae | |
| Lasiancistrus fuessli | (Steindachner, 1911) | Dolichancistrus fuesslii | Loricariidae | |
| Lasiancistrus fuesslii | (Steindachner, 1911) | Dolichancistrus fuesslii | Loricariidae | |
| Lasiancistrus genisetiger | (Fowler, 1941) | Pseudancistrus genisetiger | Loricariidae | |
| Lasiancistrus guacharote | (Valenciennes, 1840) | Lasiancistrus guacharote | Loricariidae | |
| Lasiancistrus guapore | Knaack, 2000 | Lasiancistrus schomburgkii | Loricariidae | |
| Lasiancistrus heteracanthus | (Günther, 1869) | Lasiancistrus heteracanthus | Loricariidae | |
| Lasiancistrus longispinis | Heitmans, Nijssen & Isbrücker, 1983 | Pseudancistrus longispinis | Loricariidae | |
| Lasiancistrus maracaiboensis | Schultz, 1944 | Lasiancistrus guacharote | Loricariidae | |
| Lasiancistrus mayoloi | (Eigenmann, 1912) | Lasiancistrus caucanus | Loricariidae | |
| Lasiancistrus multispinis | (Holly, 1929) | Peckoltia multispinis | Loricariidae | Bristlemouth catfish |
| Lasiancistrus mystacinus | (Kner, 1854) | Lasiancistrus guacharote | Loricariidae | |
| Lasiancistrus nationi | Fernández-Yépez, 1972 | Ancistrus gymnorhynchus | Loricariidae | |
| Lasiancistrus nicoi | Armbruster & Provenzano, 2000 | Pseudolithoxus nicoi | Loricariidae | |
| Lasiancistrus niger | (Norman, 1926) | Pseudancistrus niger | Loricariidae | |
| Lasiancistrus papariae | (Fowler, 1941) | Pseudancistrus papariae | Loricariidae | |
| Lasiancistrus planiceps | (Meek & Hildebrand, 1913) | Lasiancistrus caucanus | Loricariidae | |
| Lasiancistrus saetiger | Armbruster, 2005 | Lasiancistrus saetiger | Loricariidae | |
| Lasiancistrus schomburgkii | (Günther, 1864) | Lasiancistrus schomburgkii | Loricariidae | |
| Lasiancistrus scolymus | Nijssen & Isbrücker, 1985 | Lasiancistrus schomburgkii | Loricariidae | |
| Lasiancistrus setosus | (Boulenger, 1887) | Dolichancistrus setosus | Loricariidae | |
| Lasiancistrus snethlageae | (Steindachner, 1911) | Ancistomus snethlageae | Loricariidae | |
| Lasiancistrus tentaculatus | Armbruster, 2005 | Lasiancistrus tentaculatus | Loricariidae | |
| Lasiancistrus tigris | Armbruster & Provenzano, 2000 | Pseudolithoxus tigris | Loricariidae | |
| Lasiancistrus trinitatis | (Günther, 1864) | Ancistrus trinitatis | Loricariidae | |
| Lasiancistrus volcanensis | Dahl, 1942 | Lasiancistrus caucanus | Loricariidae |