P. leiurus, which grows to around , can be identified by dirty brown, brownish grey or gray markings on the upper part of the body which is poorly separated from markings on the lower body which tends to be dirty off-white, yellowish or pale grey with dusky mottling or spots.
P. leiurus also typically display occelated spots which may be red, green or blue.
P. leiurus are typically found in tropical
freshwater or
brackish water, with temperatures ranging between 24 °C and 28 °C, including streams and rivers in upland and lowland areas, flowing and standing water habitats, swamps, and reservoirs. Like most
Tetraodontidae,
P. leiurus is a
molluscivore and feeds on molluscs, crustaceans, and other invertebrates. ==References==