Transcriber's Notes:
A list of other publications (NOAA Technical Reports) appears on the front coverof the original book, before the title page. This list has been retained, but hasbeen moved (to here) to join the continuation of the list inside the back cover.
Where typographical errors have been corrected in the text, these are listed at the end of the book.
Link to Table of Contents.
NOAA Technical Report NMFS CIRC-396
Whales, Dolphins, and Porpoises ofthe Western North Atlantic
A Guide to Their Identification
STEPHEN LEATHERWOOD, DAVID K. CALDWELL,and HOWARD E. WINN
with special assistance by
William E. Schevill and Melba C. Caldwell
SEATTLE, WA
AUGUST 1976
UNITED STATES
DEPARTMENT OF COMMERCE
Elliot L. Richardson, Secretary		/                         NATIONAL OCEANIC AND
                         ATMOSPHERIC ADMINISTRATION
                         Robert M. White, Administrator		/                                                  National Marine
                                                  Fisheries Service
                                                  Robert W. Schoning, Director
[NOAA logo]
For sale by the Superintendent of Documents, U.S. Government Printing Office
                          Washington, D.C. 20402
      Stock No. 003-020-00119-0 / Catalog No. C 55.13: NMFS CIRC-396
PREFACE
In March 1972, the Naval Undersea Center (NUC), San Diego, Calif. in cooperation with the NationalMarine Fisheries Service (NMFS), Tiburon, Calif. published a photographic field guide—The Whales, Dolphinsand Porpoises of the Eastern North Pacific. A Guide to Their Identification in the Water, by S. Leatherwood,W.E. Evans, and D.W. Rice (NUC TP 282). This guide was designed to assist the layman in identifying thecetaceans he encountered in that area and was intended for use in two ongoing whale observer programs,NUC's Whale Watch and NMFS's Platforms of Opportunity. The rationale of these programs was that sinceoceanographers, commercial and sport fishermen, naval personnel, commercial seamen, pleasure boaters, andcoastal aircraft pilots together canvas large areas of the oceans which scientists specializing in whales(cetologists) have time and funds to survey only occasionally, training those persons in species identificationand asking them to report their sightings back to central data centers could help scientists more clearlyunderstand distribution, migration, and seasonal variations in abundance of cetacean species. For such aprogram to work, a usable field guide is a requisite. Because the many publications on the whales, dolphins, andporpoises of this region were either too technical in content or too limited in geographical area or speciescovered to be of use in field identification, and because conventional scientific or taxonomic groupings of theanimals are often not helpful in field                         
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