Lithoxus boujardi is a species of armored catfish endemic to French Guiana where it occurs in the Approuague and Oyapock River basins. L. boujardi frequents fast flowing waters of rivers and creeks with a rock or sand substrate. This species grows to a length of SL. References Ancistrini Fish of South America Fish of French Guiana Endemic fauna of French Guiana Fish described in 1993