Hump-head 
Humpback anglerfish 
Humpback Golden Line Barbel 
Humpback grouper 
Humpback red snapper 
Humpback turretfish 
Humpback unicornfish 
Humphead wrasse 
Humpnose big-eye bream 
Immaculate puffer 
Indian Bullethead Parrotfish 
Indian Goatfish 
Indian Longnose Parrotfish 
Indian mackerel 
Indian Ocean oriental sweetlips 
Indian Sailfin Tang 
Indigo Hamlet 
Indo-Pacific sailfish 
Indo-Pacific Sergeant Major 
Intermediate Cardinalfish 
Iowa darter 
Iridescent Cardinalfish 
Iridescent shark 
Island Cleaner Goby