The saw shark (Pristis microdon) is a fish that lives on Lake Sentani. Sawdust is also popular with the name of pari or shark sentani because it is endemic in Lake Sentani, Papua. Westerners call it Largetooth Jawfish which means big toothed shark. These fish include freshwater fish and breeding in an ovovivipar manner.
Although the appearance of shark saws is quite horrible, but that does not mean this fish to be ruler on Lake Sentani. The facts on the ground show that the population of Pristidae family members, Latin Pristis Microdon, continues to shrink. Fish that spread in Australia, India, Papua New Guinea, South Africa and Thailand are classified freshwater residents and love the tropics. Usually they live in big lakes, big rivers or certain swamps. In Indonesia shark saws are in Digul River, Mahakam River (Kalimantan), Siak River and Sepih River