Pristiophorus

Pristiophorus Temporal range: 86.3–Recent  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Shortnose Sawshark, (P. nudipinnis)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Division:	Selachii
Order:	Pristiophoriformes
Family:	Pristiophoridae
Genus:	Pristiophorus J. P. Müller & Henle, 1837
Type species
Pristis cirratus Latham, 1794

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. ^[1]

Taxonomy

The genus name Pristiophorus comes from Ancient Greek pristēs, meaning "saw", and -phóros, meaning "bearing".

Species

There are currently seven recognized species in this genus: ^{[2] [3]}

• Pristiophorus cirratus (Latham, 1794) (Longnose sawshark)
• Pristiophorus delicatus Yearsley, Last & W. T. White, 2008 (Tropical sawshark)
• Pristiophorus japonicus Günther, 1870 (Japanese sawshark)
• Pristiophorus lanae Ebert & Wilms, 2013 (Lana's sawshark) ^[3]
• Pristiophorus nancyae Ebert & Cailliet, 2011 (African dwarf sawshark) ^[4]
• 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

• † Pristiophorus humboldti Villafaña, Nielsen, Klug & Kriwet, 2019 ^[5]
• † Pristiophorus lanceolatus Davis, 1888 ^[6]
• † Pristiophorus striatus Underwood and Schlogl, 2013

References

1. Compagno, Leonard J.V. (1984). Sharks of the World: An Annotated and Illustrated Catalogue of Shark Species Known to Date. Rome: Food and Agriculture Organization. ISBN   92-5-101384-5.
2. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Pristiophorus". FishBase . October 2013 version.
3. Ebert, D.A.; Wilms, H.A. (2013). "Pristiophorus lanae sp. nov., a new sawshark species from the Western North Pacific, with comments on the genus Pristiophorus Müller & Henle, 1837 (Chondrichthyes: Pristiophoridae)" (PDF). Zootaxa. 3752 (1): 86–100. doi:10.11646/zootaxa.3752.1.7. PMID   25229110.
4. Ebert, D.A.; Cailliet, G.M. (2011). "Pristiophorus nancyae, a New Species of Sawshark (Chondrichthyes: Pristiophoridae) from Southern Africa". Bulletin of Marine Science. 87 (3): 501–512. Bibcode:2011BuMS...87..501E. doi:10.5343/bms.2010.1108.
5. Villafaña, Jaime A.; Nielsen, Sven N.; Klug, Stefanie; Kriwet, Jürgen (2019-12-01). "Early Miocene cartilaginous fishes (Chondrichthyes: Holocephali, Elasmobranchii) from Chile: Diversity and paleobiogeographic implications" . Journal of South American Earth Sciences. 96 102317. doi:10.1016/j.jsames.2019.102317. ISSN   0895-9811.
6. Keyes, I. W. (1982). "The Cenozoic sawshark Pristiophorus lanceolatus (Davis) (Order Selachii) of New Zealand and Australia, with a review of the phylogeny and distribution of world fossil and extant Pristiophoridae". New Zealand Journal of Geology and Geophysics. 25 (4): 459–474. doi:10.1080/00288306.1982.10421510. ISSN   0028-8306.