Carcharhinidae

Northern river shark

Glyphis garricki

A tall dorsal fin cuts through murky northern rivers

• Tropical
• Regional distribution
• Pacific Ocean
• Oceania
• Large
• Tropical fish

The northern river shark or New Guinea river shark (Glyphis garricki) is a species of requiem shark, in the family Carcharhinidae, found in scattered tidal rivers and associated coastal waters in northern Australia and in Papua New Guinea. This species inhabits areas with poor visibility, soft bottoms, and large tides, with immature sharks ranging into fresh and brackish water. It is similar to other river sharks in having a stocky grey body with a high back, tiny eyes, and broad fins.