nF Rane ‘Sane Sl 
Wei hee, ct tang eC ee Pe COT er 
VOL, I. 
Hi 1915 
85 
* 
CETACEA. 
Bre De Ge EME TE, “Mla. 
(Biologist to the Expedition). 
CONTENTS. 
PAGE PAGE 
T.—INtRopuction . 85 Mystacoceti (continued). 
II.—Descriptions OF SPECIES . 86 BALAENOPTERIDAR (continued). 
Mystacoceti — Megaptera nodosa, Bonnaterre 
(continued. ) 
BaLAENIDAE Ph Distribution and Migration in 
Balaena glacialis, OTe 86 the Southern Hemisphere 110 
Neobalaena marginata, Gray . Si Balaenoptera acutorostrata, Lacépéde 113 
BALAENOPTERIDAE— 45 musculus, Linnaeus . 115 
Megaptera nodosa, Bonnaterre 87 3 physalus, Linnaeus. 116 
Introduction 87 " borealis, Lesson 3 lites 
Size 88 
Body Form 89 Odontoceti— 
Egiour d 20 PHYSETERIDAE 
3. o C 3 Va 
ool prea Physeter catodon, Linnaeus . euis 
Baleen 95 ZIPHIIDAE— 
Hae 95 Hyperoodon rostratus, Miiller 6 lis) 
Jacobson’s Organ i 97 Mesoplodon australis, Flower 5 tals 
Throat-grooves 5 : 97 DELPHINIDAE— 
Movement of the Lower Jaw . 99 Oreinus orca, Linnaeus . 5 tS) 
Mammary Glands. ; ~ LOL The “ High-finned” Whale . . 120 
Auditory Organ ? : . 103 Globicephala melaena, Traill . 5 PAL 
Scapula and Vertebrae — . . 108 Delphinus delphis, Linnaeus . . 121 
Foetuses : : ; ~ Log Tursio peronii, Lacépéde j . 121 
Food . : : : . 109 Lagenorhynchus obscurus, Gray . 122 
Habits , : : . 109 3 wilsoni, sp.nov. . 123 
I—INTRODUCTION. 
A CAREFUL watch was kept for Cetaceans on board the “Terra Nova” during all her 
voyages ; and although we did not succeed in capturing any specimens of this group, 
accurate records and notes were taken of nearly every whale and dolphin which we 
saw. Great care was exercised to determine the species, as far as this was possible from 
an examination of the animals as they swam in the sea. 
In writing this Report I have had access to the notes made by the late Dr. E. A. 
O 
