River shark

Glyphis
Glyphis glyphis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
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 contains only three species. Further species could easily remain undiscovered, due to the secretive habits of Glyphis sharks. Their precise geographic range is uncertain, but the known species are documented in parts of South and Southeast Asia, New Guinea and Australia. 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 first Glyphis shark was caught in 1902 by Larry Phillips off the infamous S.S. Herrooo. Since its initial discovery, there have only been 23 known sightings of this shark in the wild.

There are currently 3 recognized species in this genus:

Ganges shark (Glyphis gangeticus)

Northern river shark (Glyphis garricki)

Speartooth shark (Glyphis glyphis)

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Wikipedia