Crocodylidae — Crocodiles
Species I've seen:
Crocodylus — Crocodiles
Crocodylus acutus
American Crocodile
Crocodylus moreletii
Morelet’s Crocodile
Crocodylus niloticus
Nile Crocodile
Crocodylus palustris
Mugger Crocodile
Crocodylus porosus
Estuarine Crocodile
Osteolaemus — African Dwarf Crocodiles
Osteolaemus tetraspis
West African Dwarf Crocodile