Sawfish
Sawfishes, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish with some species reaching lengths of about . They are found worldwide in tropical and subtropical regions in coastal marine and brackish estuarine waters, as well as freshwater rivers and lakes.
Sawfish
"Anoxypristis" contains a single living species that historically was included in "Pristis", but the two genera are morphologically and genetically highly distinct. Today "Pristis" contains four living, valid species divided into two species groups. Three species are in the smalltooth group, and there is only a single in the largetooth group. Three poorly defined species were formerly recognized in the largetooth group, but in 2013 it was shown that "P. pristis", "P. microdon" and "P. perotteti" do not differ in morphology or genetics. As a consequence, recent authorities treat "P. microdon" and "P. perotteti" as junior synonyms of "P. pristis".