An analysis of California sea otter (Enhydra lutris) pelage and integument
THOMAS D. WILLIAMS, D. DIANE ALLEN, JOSEPH M. GROFF
AND ROBERT L. GLASS .......................................................................................................1

Phocine distemper virus infection in harp seals (Phoca groenlandica).
NINA HEDLUND MARKUSSEN AND PER HAVE............................................................. 9

Patterns of bowhead whale distribution and abundance near Barrow, Alaska,
in Fall 1982-1989.
SUE E. MOORE AND JANET T. CLARKE .........................................................................27

Aging live antarctic fur seals and southern elephant seals.
T. A. ARNBOM, N. J. LUNN, I. L. BOYD AND T. BARTON ............................................37

Reproductive synchrony and the estimation of mean date of birth from daily counts
of northern fur seal pups.
ANDREW W. TRITES ..........................................................................................................44

The ocular secretions of the bottlenose dolphin, Tursiops truncatus.
N. M. YOUNG AND W.W. DAWSON ...............................................................................57

Analysis of swim velocities during deep and shallow dives of two northern fur seals,
Callorhinus ursinus.
PAUL J. PONGANIS, ROGER L. GENTRY, EDWARD P. PONGANIS
AND KATHERINE V. PONGANIS ......................................................................................69

ERRATA ................................................................................................................................98

NOTES

Stomach contents of four short-finned pilot whales (Globicephala macrorhynchus)
from the Southern California Bight.
ELIZABETH HACKER SINCLAIR ......................................................................................76

Records of the finless porpoise (Neophocaena phocaenoides) in the waters adjacent to
Kanmon Pass, Japan.
MIKI SHIRAKIHARA, KUNIO SHIRAKIHARA AND AKIRA TAKEMURA ..................82

Southern right whales (Eubalaena australis) off southern Peru.
KOEN VAN WAEREBEEK, JULIO REYES AND CARLOS ARANDA ............................86

Growth structures of maxillary canines of the southern fur seal (Arctocephalus australis).
ADRIAN C. M. SCHIAVINI, MAURICIO LIMA AND LUIS M. BATALLES ...................89

BOOKS

Reviews ..................................................................................................................................94

Harps & Hoods: Ice-breeding Seals of the Northwest Atlantic. K. M. Kovacs
and D. M. Lavigne. University of Waterloo Press, Waterloo, Ont., Canada.
Reviewed by W. D. Bowen.

Biology and Exploitation of the Minke Whale. Joseph Horwood. CRC Press, Inc.,
Boca Raton, Florida.
Reviewed by Richard M. Laws.

GUIDE FOR AUTHORS .......................................................................................................99

Pupping in the most northerly harbor seal (Phoca vitulina).
IAN GJERTZ AND ASBJORN BORSET ............................................................................103

Killer whales, Orcinus orca, in the southeastern Bering Sea: recent sightings
and predation on other marine mammals.
KATHRYN J. FROST, RICHARD B. RUSSELL AND LLOYD F. LOWRY .....................110

Thermal infrared radiation from free living whales.
L. C. CUYLER, R. WIULSROD AND N. A. ORITSLAND ...............................................120

Cyclic ocular hypertension in cetaceans.
WILLIAM W. DAWSON, J. PETE SCHROEDER, JUDYTH C. DAWSON
AND PAUL E. NACHTIGALL ...........................................................................................135

Segregative migration of Dall's porpoise (Phocoenoides dalli) in the Sea of Japan
and Sea of Okhotsk.
MASAO AMANO AND TOSHIAKI KURAMOCHI ........................................................143

NOTES

An unusual aggregation of harbor porpoises (Phocoena phocoena).
WYB HOEK ........................................................................................................................152

Documenting migrations of northern elephant seals using day length.
ROBERT L. DELONG, BRENT S. STEWART AND ROGER D. HILL .............................155

A questionnaire survey on the distribution of the finless porpoise, Neophocaena
phocaenoides, in Japanese waters.
KUNIO SHIRAKIHARA, HIDEYOSHI YOSHIDA, MIKI SHIRAKIHARA
AND AKIRA TAKEMURA ................................................................................................160

First Pacific record of a hooded seal, Cystophora cristata Erxleben, 1777.
MARILYN DUDLEY ..........................................................................................................164

Factors affecting accuracy of age determination in the harp seal, Phoca groenlandica.
J. W. LAWSON, G. D. HARRISON AND W. D. BOWEN ...............................................169

Notes on a Gervais' beaked whale, Mesoplodon europaeus, and a dwarf sperm whale,
Kogia simus, stranded in Curacao, Netherlands Antilles.
ADOLPHE O. DEBROT AND NELIO B. BARROS ..........................................................172

Movements of sea otters relocated along the California coast.
KATHERINE RALLS, D. B. SINIFF, ANGELA DOROFF AND ALAN MERCURE .......178

Sex identification of long-finned pilot whale fetuses off the Faroe Islands.
LISELOTTE WESLEY ANDERSEN, GENEVIEVE DESPORTES
AND URSULA FRIEDRICH ...............................................................................................184

The capture and handling of female South American fur seals and their pups.
PATRICIA MAJLUF AND MICHAEL E. GOEBEL ...........................................................187

BOOKS

Reviews ................................................................................................................................191

Harp Seals, Man and Ice. David E. Sergeant. Canadian Special Publication of Fisheries
and Aquatic Sciences.
Reviewed by Oystein Wiig.

Advances in Research on the Beluga Whale, Delphinapterus leucas. T. G. Smith,
D. J. St. Aubin and J. R. Geraci, eds. Canadian Bulletin of Fisheries and Aquatic
Sciences. No. 224.
Reviewed by Mads-Peter Heide-Jorgensen.

Books Received ....................................................................................................................195

BUSINESS ..........................................................................................................................197

NEWS .................................................................................................................................199

An analysis of procedures for implementing the dynamic response method.
L. L. EBERHARDT ..............................................................................................................201

Sounds of a pygmy right whale (Caperea marginata).
WILLIAM H. DAWBIN AND DOUGLAS H. CATO .........................................................213

Range-wide survey and estimation of total number of Steller sea lions in 1989.
THOMAS R. LOUGHLIN, ADOLF S. PERLOV AND VALERY A. VLADIMIROV ........220

Geographic variation and sexual dimorphism in the skull of Dall's porpoise,
Phocoenoides dalli.
MASAO AMANO AND NOBUYUKI MIYAZAKI ...........................................................240

Habitat use patterns and ranges of the bottlenose dolphin in the Gulf of California, Mexico.
LlSA TAYLOR BALLANCE ...............................................................................................262

Restrictable DNA from sloughed cetacean skin; its potential for use in population analysis.
W. AMOS, H. WHITEHEAD, M. J. FERRARI, D. A. GLOCKNER-FERRARI,
R. PAYNE AND J. GORDON ............................................................................................275

NOTES

Epimeletic behavior of free-ranging roughed-toothed dolphins, Steno bredanensis, from Brazil.
LILIANE LODI ....................................................................................................................284

New information on the feeding habits and baleen morphology of the pygmy right whale
Caperea marginata.
KEIKO SEKIGUCHI, PETER B. BEST AND BOZENA Z. KACZMARUK ......................288

Blood glucose distribution, brain size and diving in small odontocetes.
M. A. CASTELLINI, D. P. COSTA AND J. M. CASTELLINI ...........................................294

Pulse sequence and whistle production by two captive beaked whales, Mesoplodon species.
SPENCER K. LYNN AND DIANA L, REISS ....................................................................299

Rope entanglement of bowhead whales (Balaena mysticetus).
LEE MICHAEL PHILO, JOHN C. GEORGE AND THOMAS F. ALBERT .......................306

Lissodelphis peronii, Lacepede 1804 (Delphinidae, Cetacea) within the stomachcontents
of a sleeping shark, Somniosus cf. pacificus, Bigelow and Schroeder 1944,in Chilean waters.
ANGEL CROVETTO, JULIO LAMILLA, AND GERMAN PEQUE¥O .............................312

Asymmetrical pigmentation in the fin whale: a test of two feeding related hypotheses.
BERNIE R. TERSHY AND DAVID N. WILEY ..................................................................315

BOOKS

Reviews ................................................................................................................................319

Dolphins Societies, Discoveries and Puzzles. Karen Pryor and Kenneth S. Norris, eds.
University of California Press, Berkeley.
Reviewed by Andrew J. Read.

BUSINESS ..........................................................................................................................322

MEMORIES

Forrest Glenn Wood .............................................................................................................324

NEWS ..................................................................................................................................326

Survival rates of photographically identified Hector's dolphins from 1984 to 1988.
ELISABETH SLOOTEN AND STEPHEN M. DAWSON ..................................................327

Effectiveness of various cattle ear tags as markers for Weddell seals.
J. WARD TESTA AND PETER ROTHERY ........................................................................344

Surface morphology of the forebrain of the bowhead whale, Balaena mysticetus.
DENNlS W. DUFFIELD, JERROLD T. HALDIMAN AND WILLIAM G. HENK ............354

Cetacean lens zones of discontinuity--indices of health and development.
WILLIAM W. DAWSON, G. M. HOPE, JUDYTH C. DAWSON,
PAUL E. NACHTIGALL AND J. PETE SCHROEDER ......................................................379

Growth and distribution of a southern elephant seal colony.
CLAUDIO CAMPAGNA AND MIRTHA LEWIS ..............................................................387

NOTES

Long-distance movements of North Atlantic right whales (Eubalaena glacialis).
A. R. KNOWLTON, J. SIGURJONSSON, J. N. CIANO AND S. D. KRAUS .................397

Stomach contents of long-finned pilot whales (Globicephala melas) and bottlenose
dolphins (Tursiops truncatus) in Tasmania.
ROSEMARY GALES, DAVID PEMBERTON, MALCOLM CLARKE
AND C. C. LU .....................................................................................................................405

Comparative cognition in marine mammals: a clarification on match-to-sample tests.
DAVID A. KASTAK AND RONALD J. SCHUSTERMAN ...............................................414

A tritiated water experiment on a male Atlantic walrus (Odobenus rosmarus rosmarus).
CHRISTIAN LYDERSEN, DAVID GRIFFITHS, IAN GJERTZ AND OYSTEIN WIIG ....418

First record of the pygmy beaked whale Mesoplodon peruvianus in the North Pacific.
JORGE URBAN-RAMIREZ AND DAVID AURIOLES-GAMBOA ..................................420

First record of a truei-type Dall's porpoise from the eastern North Pacific.
ISIDORE D. SZCZEPANIAK, MARC A. WEBBER AND THOMAS A. JEFFERSON .....425

A cookiecutter shark wound on a Guadalupe fur seal male.
JUAN-PABLO GALLO-REYNOSO AND ANA-LUISA FIGUEROA-CARRANZA ........428

The importance of vocal cues in mother-pup recognition in a California sea lion.
EVELYN B. HANGGI .........................................................................................................430

LETTERS

Scientific Correspondence .....................................................................................................433

NEWS .................................................................................................................................434

INDEX .................................................................................................................................435