They’re mentioned as critically endangered, with their quantities declining resulting from overfishing and habitat destruction. Like coelacanth, they've got small genetic variation among populations, building them much more vulnerable to disorder. The Smalltooth Sawfish is an interesting on the lookout fish, which gets its name from its lengthy blade-like snout. https://www.4shared.com/office/vQU5Us_nfa/How_to_Set_Up_Your_First_Aquar.html