1864. ] DR. J. E. GRAY ON BRITISH CETACEA. 231 
they are shown in a similar manner at Edinburgh, at the Isle of 
Wight, and in other localities. 
Sect. II. Denticete. Teeth in one or both jaws, rarely deciduous. 
Palate lined with a hard membrane, without any baleen. Gullet 
large. Head more or less compressed. Tympanic bones small ; 
lachrymal bone distinct. 
I. Nostrils longitudinal, parallel or diverging, covered with a valve, 
one often larger and more developed. Pectoral broad, trun- 
cate. 
Fam. 3. CATODONTID. 
Head large, subcylindrical, blunt. Lower jaw narrow. Teeth 
large, in the lower jaw only, fitting into pits in the gums of the 
upper one. Nostrils separate, one often abortive. The hinder edge 
of the maxillary elevated, forming a concavity on the forehead of 
the skull. Pectoral broad, truncated. 
* Head compressed, truncated ; nostril in front of the truncated 
head ; dorsal hump rounded. 
1. Caropon. . Spermaceti Whale. 
Head very large, one-third of the entire length of the animal. 
Catodon, Artedi; Gray, Zool. E. & T.; Cat. Cetac. 45. 
Physeter, Wagler. 
Physalus, Lacép. 
CaTODON MACROCEPHALUS. Northern Sperm Whale. 
Trumpo, Phil. Trans. i. 132. 
De Balena macrocephala, &c., Sibbald, Bal. 12. 
Balena macrocephala bipennis, Raii Pisce. 15. 
Catodon macrocephalus, Lacép. Cét. t. 10. f. 1; Fleming, B. A. 39. 
Sperm Whale, Anderson, Cambridge Phil. Trans. ii. 250, t. 12-14. 
Spermaceti Whale, Dudley, Phil. Trans. xxxii. 258; Gent. Mag. 
1794, p. 33, t. 1. 
Blunt-headed Cachalot, Robertson, Phil. Trans. Ix. t. 
Physeter trumpo, Bonnat. Cét. t. 8. f. 1, cop. Robertson. 
Physeter macrocephalus, Turton, Fauna, 16; Jenyns, Man. 44; 
Bell, B. Quad. 506. fig., 511. fig. 
Hab. North Sea; Teignmouth (Gesner, 1532) ; Whitstable Bay, 
1794; Scotland (Sibbald; Robertson); Orkney (Lowe) ; mouth of 
the Thames, coast of Essex and Kent, Feb. 1788, twelve males ; 
Holderness, Yorkshire, 1825 (Beale) ; skeleton of adult at Burton 
Constable Castle, near Hull, described by Beale ; Sandy Side Bay, 
Thirso, 1863, skeleton in the British Museum, supposed to have 
been brought by the Gulf-stream—was decayed when discovered. 
Coast of Yorkshire (Dr. Anderson), described in Cambridge Phil. 
Soe. Trans. 1825; 583 feet long; teeth 24/24. 
