Funds for the preparation of this guide were provided by a grant to Stephen Leatherwood from the Platforms of Opportunity Program, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Tiburon, Calif., Paul Sund, Coordinator.

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]
Selected bibliography[152]
Appendix A, Tags on whales, dolphins, and porpoises[154]
Appendix B, Recording and reporting observations of cetaceans at sea[160]
Appendix C, Stranded whales, dolphins, and porpoises; with a keyto the identification of stranded cetaceans of the westernNorth Atlantic[163]
Appendix D, Recording and reporting data on stranded cetaceans[169]
Appendix E, List of institutions to contact regarding stranded cetaceans[171]

The National Marine Fisheries Service (NMFS) does not approve, recommend or endorse any proprietary product or proprietary material mentioned in this publication. No reference shall be made to NMFS, or to this publication furnished by NMFS, in any advertising or sales promotion which would indicate or imply that NMFS approves, recommends or endorses any proprietary product or proprietary material mentioned herein, or which has as its purpose an intent to cause directly or indirectly the advertised product to be used or purchased because of this NMFS publication.

Whales, Dolphins, and Porpoises of the Western North Atlantic
A Guide to Their Identification

STEPHEN LEATHERWOOD,[1] DAVID K. CALDWELL,[2] and HOWARD E. WINN[3]