Pristiophoridae - (Saw sharks)
Distribution: South Africa and Australia to Japan. Snout elongated into a long flat blade with alternate large and small teeth weakly embedded on each side & periodically replaced. One long barbel on each side. Five to six gill slits lateral on head & anterior to pectoral-fin bases. Two spineless dorsal fins and anal fin absent. Genus Pliotrema has 6 pairs gill slits, serrated larger rostral teeth & teeth with prominent transverse ridges on basal ledges. Genus Pristiophorus has 5 pairs gill slits, smooth larger rostral teeth & teeth without prominent transverse ridges on basal ledges. Maximum size less than 2 m (Ref. 247). Strictly marine inhabitants (Ref. 48821). Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Note: Families with unknown counts of dorsal or anal spines are also included