Description
This species has a striped pattern. However, this colouration may change with age. There are specimens with straight bars, but there are also specimens with a broken or wavy pattern. The wavy pattern form is found in the actual Orinoco and its tributaries in Bolivar State, Venezuela, while the "normal" patterned P. maccuscomes from further north and west (Cojedes, Portuguesa, Guarico, and Apure States) in the Llanos where the drainages run into the Apure River.