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Pristiophorus

Pristiophorus is a genus of sawsharks found in the Pacific, Atlantic and Indian oceans. Members of this genus differ from sixgill sawsharks of the genus Pliotrema in having five gill slits. Their rostral sawteeth lack prominent transverse ridges on the basal ledges, and the large teeth are not posteriorly serrated.

Taxonomy
The genus name Pristiophorus comes from Ancient Greek pristēs, meaning "saw", and -phóros, meaning "bearing". ==Species==
Species
There are currently seven recognized species in this genus: • Pristiophorus nancyae Ebert & Cailliet, 2011 (African dwarf sawshark) • Pristiophorus nudipinnis Günther, 1870 (Shortnose sawshark) • Pristiophorus peroniensis Yearsley, Last & W. T. White, 2008 (Eastern Australian sawshark) • Pristiophorus schroederi S. Springer & Bullis, 1960 (Bahamas sawshark) ;Fossil species '' '') Based on the Shark-References database: • Pristiophorus austriacus Reinecke et al., 2020 • Pristiophorus borealis Reinecke et al., 2020 • Pristiophorus lacipidinensis Adnet, 2006 • Pristiophorus laevis Engelbrecht, Mörs, Reguero & Kriwet, 2016 • Pristiophorus lineatus Applegate & Uyeno, 1968 • Pristiophorus napierensis Chapman, 1918 • Pristiophorus palaeocenicus (Herman, 1973) • Pristiophorus pricei Cappetta, Morrison & Adnet, 2019 • Pristiophorus rupeliensis Steurbaut & Herman, 1978 • Pristiophorus smithi Cappetta, Morrison & Adnet, 2019 • Pristiophorus suevicus Jaekel, 1890 • Pristiophorus tortonicus Reinecke et al., 2020 The most effective way to diagnose a fossil sawshark species to Pristiophorus, and as its own species, is via the rarely-preserved oral teeth, which tend to not be associated with the rostral spines. ==References==
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