CONTENTS 



Introduction 1 



Classification of cetaceans 1 



Dolphin or porpoise 5 



Organization of the guide 5 



How to use the guide 7 



To identify animals at sea 7 



To identify stranded animals 7 



To record and report information 7 



Directory to species accounts: 



Large whales: 



With a dorsal fin 10 



Without dorsal fin 13 



Medium-sized whales: 



With a dorsal fin 14 



Without dorsal fin 15 



Small whales, dolphins, and porpoises with a dorsal fin 16 



Species accounts: 



Large whales with a dorsal fin: 



Blue whale 19 



Fin whale 26 



Sei whale 32 



Bryde's whale 37 



Humpback whale 40 



Large whales without dorsal fin: 



Bowhead whale 49 



Right whale 52 



Sperm whale 57 



Medium-sized whales with a dorsal fin: 



Minke whale 63 



Northern bottlenosed whale 67 



Goosebeaked whale 70 



Other beaked whales 74 



True's beaked whale 77 



Antillean beaked whale 78 



Dense-beaked whale 80 



North Sea beaked whale 82 



Killer whale 84 



False killer whale 88 



Atlantic pilot whale 91 



Short-finned pilot whale 94 



Grampus 96 



Medium-sized whales without dorsal fin: 



Beluga 99 



Narwhal 102 



Small whales, dolphins, and porpoises with a dorsal fin: 



Atlantic spotted dolphin 104 



Bridled dolphin 108 



Spinner dolphin 110 



Striped dolphin 113 



Saddleback dolphin 116 



Fraser's dolphin 120 



Atlantic white-sided dolphin 123 



White-beaked dolphin 126 



Atlantic bottlenosed dolphin 128 



Guiana dolphin 132 



Rough toothed dolphin 135 



Pygmy killer whale 138 



Many-toothed blackfish 142 



Pygmy sperm whale 144 



Dwarf sperm whale 148 



Harbor porpoise 150 



Acknowledgments 152 



111 



