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Sixgill sawshark
| Sixgill sawshark | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Pristiophoriformes |
| Family: | Pristiophoridae |
| Genus: | Pliotrema Regan, 1906 |
| Species: | P. warreni
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| Binomial name | |
| Pliotrema warreni Regan, 1906
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| Range of sixgill sawshark shark (in blue) | |
The sixgill sawshark, Pliotrema warreni is a sawshark of the family Pristiophoridae. Presence of six pairs of gill slits highlights this genus among sharks; outside Hexanchiformes order, Pliotrema is the only shark genus with more than five gill slits. Unlike other sawsharks, the barbs on this shark's rostrum continue onto the sides of the head. Its barbels are also closer to its mouth than in other species. At maximum, females can reach over 136 cm long, and males can reach over 112 cm long.
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-09-30. Retrieved 2008-01-09.
- ^ Pollom, R.; Rigby, C.L.; Bennett, R.; Fennessy, S.; Gledhill, K.; Leslie, R.; Sink, K.; Winker, H.; Pacoureau, N.; Herman, K.; Cheok, J. (2020). "Pliotrema warreni". IUCN Red List of Threatened Species. 2020: e.T171728748A124432293. doi:10.2305/IUCN.UK.2020-3.RLTS.T171728748A124432293.en. Retrieved 18 November 2021.
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