River shark

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River shark
Temporal range: Miocene – Recent
Speartooth shark melbourne.jpg
Speartooth shark, Glyphis glyphis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Glyphis
Agassiz, 1843
Type species
Carcharias (Prionodon) glyphis
Müller & Henle, 1839

Glyphis is a genus in the family Carcharhinidae, commonly known as the river sharks. This genus was thought to contain five different species, but recent studies on molecular data revealed that the species Glyphis gangeticus has an irregular distribution in the Indo-West Pacific region.[2] This genus contains only three known species. Further species could easily remain undiscovered, due to the secretive habits of Glyphis sharks.[3] Their precise geographic range is uncertain, but the known species are documented in parts of South and Southeast Asia, New Guinea, and Australia. Of the three currently described species, the Ganges shark is restricted to fresh water, while the northern river shark and the speartooth shark are found in coastal marine waters, as well. While the bull shark (Carcharhinus leucas) is sometimes called both the river shark and the Ganges shark, it should not be confused with the river sharks of the genus Glyphis.


The recognized species in this genus are:



  1. ^ http://fossilworks.org/bridge.pl?action=taxonInfo&is_real_user=1&taxon_no=80614. Missing or empty |title= (help)
  2. ^ Jabado, R. W.; Kyne, P. M.; Nazareth, E.; Sutaria, D. N. (2018). "A rare contemporary record of the Critically Endangered Ganges shark Glyphis gangeticus". Journal of Fish Biology. 92 (5): 1663–1669. doi:10.1111/jfb.13619. ISSN 1095-8649. PMID 29611178.
  3. ^ Li, Chenhong; Corrigan, Shannon; Yang, Lei; Straube, Nicolas; Harris, Mark; Hofreiter, Michael; White, William T; Naylor, Gavin J. P (2015). "DNA capture reveals transoceanic gene flow in endangered river sharks". Proceedings of the National Academy of Sciences. 112 (43): 13302–7. Bibcode:2015PNAS..11213302L. doi:10.1073/pnas.1508735112. PMC 4629339. PMID 26460025.