Estimation of prey densities required by western North Atlantic right whales.
ROBERT D. KENNEY, MARTIN A. M. HYMAN, RALPH E. OWEN,
GERALD P. SCOTT AND HOWARD E. WINN ......................................................................1

Incidental mortality of northern sea lions in Shelikof Strait, Alaska.
THOMAS R. LOUGHLIN AND RUSSELL NELSON, JR. .....................................................14

Ecology, behavior and social organization of the bottlenose dolphin: A review.
SUSAN H. SHANE, RANDALL S. WELLS AND BERND WURSIG ....................................34

A mass stranding of sperm whales in Oregon: sex and age composition of the school.
DALE W. RICE, ALLEN A. WOLMAN, BRUCE R. MATE AND JAMES T. HARVEY .......64

NOTES

The Caribbean monk seal is extinct.
BURNEY J. LE BOEUF, KARL W. KENYON AND BERNARDO VILLA-RAMIREZ ........70

Mass stranding of Fraser's dolphin, Lagenodelphis hosei, in the western North Atlantic.
SANDRA L. HERSH AND DANIEL K. ODELL ....................................................................73

LETTERS

Manatees and genocide.
CLAYTON E. RAY AND DARYL P. DOMNING 77

Humpback whales from Mexico.
JUAN PABLO GALLO-R., ALFREDO ORTEGA-O. AND WILLIAM LOPEZ-F. ................78

BOOKS

Reviews .....................................................................................................................................80

The Gray Whale Eschrichtius Robustus. M. L. Jones, S. L. Swartz and S. Leatherwood (eds.).
Academic Press, Orlando, FL. Reviewed by Robert L. Brownell, Jr. Diving and Asphyxia.
R. Elsner and B. Gooden. Physiological Society Monograph 40, Cambridge University Press,
New York, NY.
Reviewed by Sam H. Ridgway.

New Books ..............................................................................................................................83

GUIDE FOR AUTHORS .........................................................................................................84

Interspecific and intraspecific morphological variation in manatees (Sirenia: Trichechus).
DARYL P. DOMNING AND LEE-ANN C. HAYEK ............................................................87

Growth in young gray whales (Eschrichtius robustus).
JAMES L. SUMICH .............................................................................................................145

NOTES

The International Code of Zoological Nomenclature and a paradigm:
The name Physeter catodon Linnaeus 1758.
WILLIAM E. SCHEVILL ......................................................................................................153

LETTERS

The first report of Zalophus californianus in Acapulco, Mexico.
JUAN PABLO GALLO-R., AND ALFREDO ORTEGA-O. .................................................158

BOOKS

Reviews ...................................................................................................................................159

Studies of Sea Mammals in South Latitudes. J. K. Ling and M. M. Bryden (eds.).
South Australian Museum, Adelaide, Australia Reviewed by C. H. Lockyer, S. S. Anderson,
W. N. Bonner, M. A. Fedak, P.S. Hammond and B. J. McConnell. Exploitation of Marine
Communities. R. M. May (ed.). Dahlem Workshop Reports. Life Sciences Research
Report 32.
Reviewed by Douglas G. Chapman.

New Books .............................................................................................................................163

INDEX TO VOLUME 1 .........................................................................................................164

Weights and anatomical measurements of northeastern Atlantic fin (Balaenoptera
physalus, Linnaeus) and sei (B. borealis, Lesson) whales.
CHRISTINA LOCKYER AND TIMOTHY WATERS ..........................................................169

Geographic patterns of variation in offshore spotted dolphins (Stenella attenuata)
of the eastern tropical Pacific Ocean.
GARY D. SCHNELL, MICHAEL E. DOUGLAS AND DANIEL J. HOUGH .......................186

The distribution of bowhead whales, Balaena mysticetus, in the Chukchi Sea.
R. V. MILLER, D. J. RUGH AND J. H. JOHNSON ..............................................................214

NOTES

Analysis of sea otter, Enhydra lutris, scats collected from a California haulout site.
ELLEN R. FAUROT, JACK A. AMES AND DANIEL P. COSTA .......................................223

Estimating feeding rates of marine mammals from heart mass to body mass ratios.
S. INNES, D. M. LAVIGNE, W. M. EARLE AND K. M. KOVACS ...................................227

On the identity of Tursio chiloensis Philippi 1900.
R. NATALIE P. GOODALL ..................................................................................................230

LETTERS

Communicating with dolphins.
FRANK T. AWBREY ............................................................................................................233

Sound production in dolphins.
KENNETH S. NORRIS .........................................................................................................233

BOOKS

Reviews ...................................................................................................................................236

Handbook of Marine Mammals. Volume 3: The Sirenians and Baleen Whales.
S. H. Ridgway and R. Harrison (eds.). Academic Press, Orlando, FL.
Reviewed by Galen B. Rathbun and Peter B. Best.

Les Phoques Moines-Monk Seal. Ronald and R. Duguy (eds.). Proceedings of the
Second International Conference, La Rochelle, France.
Reviewed by William G. Gilmartin.

The Elements of Graphing Data. W. S. Cleveland. Wadsworth and Brooks, Monterey, CA.
Reviewed by Katherine Ralls.

New Books ..............................................................................................................................24l

BUSINESS .............................................................................................................................242

Adrenocortical function in pinniped hyponatremia.
D. J. ST. AUBIN AND J. R. GERACI ....................................................................................243

Whale reactions to human activities in Cape Cod waters.
WILLIAM A. WATKINS ......................................................................................................251

The earliest sirenian (Mammalia: Dugongidae) from the Eastern Pacific Ocean.
DARYL P. DOMNING AND CLAYTON E. RAY ...............................................................263

The fossil whale, Balaenoptera davidsonii (Cope 1872), with a review of other
Neogene species of Balaenoptera (Cetacea: Mysticeti).
THOMAS A. DEMORO ........................................................................................................277

NOTES

Distribution of the vaquita, Phocoena sinus, in Mexican waters.
ROBERT L. BROWNELL, JR. ...............................................................................................299

An incidence of twinning in the sea otter (Enhydra lutris).
RONALD J. JAMESON AND JAMES L. BODKIN .............................................................305

Prey consumption on land by the California sea otter, Enhydra lutris.
CHRISTOPHER HARROLD AND DANE HARDIN ............................................................309

Fatal shark attack on a Hawaiian monk seal (Monachus schauinslandi).
DORIS J. ALCORN AND ALAN K. H. KAM ......................................................................313

Post-1980 sightings of bowhead whales (Balaena mysticetus) from the Spitsbergen stock.
C. D. McQUAID ....................................................................................................................316

The occurrence of potentially pathogenic vibrios in marine mammals.
JOHN D. BUCK AND STEPHEN SPOTTE ..........................................................................319

LETTERS

Diving responses.
ROBERT ELSNER .................................................................................................................325
SAM H. RIDGWAY ...............................................................................................................326

BOOKS

Reviews ...................................................................................................................................329

Fur Seals: Maternal Strategies on Land and at Sea. R. L. Gentry and
G. L. Kooyman (eds.). Princeton University Press, Princeton, N.J.
Reviewed by Daryl J. Boness.

New Books .............................................................................................................................330

BUSINESS .............................................................................................................................331

INDEX TO VOLUME 2 .........................................................................................................332