Acestridium colombiense
Acestridium colombiense is a species of armored catfish endemic to Colombia. It is known only from the Inírida River, in the Guainía Department in eastern Colombia.
Like all Acestridium species, this is a very slender and elongated fish. Specimens of up to SL have been recorded. It can most readily be distinguished from its congeners by its rather homogeneous brown coloration and the very low number of jaw teeth.