8 



in front of the notch, deep, broad behind; rather shorter 

 than the length of the brain-case. Teeth-line reaching 

 nearly to the notch, large, three in an inch. First and 

 second cervical vertebrae united by their bodies ; the third, 

 fourth, fifth, six, and seventh free. 



1. Lagenorhynchus albirostris (T. 10. f. 2, T. 11, 

 skull), Gray, I. c. 272. no. 8. The beak of the skull once 

 and one-half as long as the width at the notch. Hab. 

 North Sea, Yarmouth. 



1. Neomeris phocsenoides, Gray, 1. c. 306. Hab. 

 Indian Ocean, Bengal, Cape of Good Hope, Japan. " Del- 

 phinus molagan," Owen, Trans. Zool. Soc. vi. 24, a name 

 given to a manuscript note of Mr. Elliot's ! 



2. Pectoral fin large, broad, rounded at the end ; hand 

 shorter than the arm-bones ; carpal bones single, immersed 

 in a large cartilage. Phalanges of the index-finger eight. 



Tribe IV. PHOC-ffiNINA. 



Head rounded in front, scarcely beaked. Beak of skull 

 depressed, broad, scarcely so long as the brain-cavity. 



* Lateral wing of the maxilla horizontally produced over 

 the orbits. Dorsal distinct. Teeth conical. 



I. PSEUDORCA. 



Triangle in front of the blowers flat. Teeth large, coni- 

 cal, acute, permanent. 



1. Pseudorca crassidens, Gray, I. c. 290. no. 1. Hab. 

 North Sea. 



2. Pseudorca meridionalis, Gray, 1. c. 291. no. 2, 

 figs. 58, 59. Hab. Van Diemen's Land. 



** Lateral wing of the maxilla shelving down over the 

 orbit. Triangle in front of the blower convex. Teeth 

 compressed. 



II. Phocena, Gray, I. c. 301. 



Dorsal fin distinct, in the middle of the back, with a 

 series of small spines on the upper part of its front edge. 

 Teeth all compressed, truncate. 



1. Phocaena communis, Gray, I. c. 302. Var. ? Pho- 

 caena tuberculifera, Gi-ay, I. c. 304. Hab. North Sea. 



III. Acanthodelphis, Gray, I. c. 304. 



Dorsal fin distinct, rather behind the middle of the back. 

 Back in front of the dorsal fin with a single, and the upper 

 part of the front edge of the dorsal fin with three, series of 

 oblong keeled tubercles. Teeth compressed, front one ra- 

 ther conical. 



1 . Acanthodelphis spinipennis, Gray, I. c. 304. 

 Coast of Brazil. 



VII. Neomeris, Gi-ay, I. c. 306. 

 Dorsal fin none. 



Hab. 



Tribe V. ORCADINA. 



I. Orca, Gray, I. c. 278. 



Head rounded, scarcely beaked. Dorsal fin falcate. 

 Skull heavy ; rings of side expanded ; beak short, broad ; 

 triangle in front of the blowers flat ; teeth large. 



* Beak broad, oblong ; intermaxillaries half as broad as 

 beak. Lotrer jaw narrow in front. Orca. 



1 . Orca gladiator, Gray, I. c. 279. Hab. North Sea. 



2. Orca intermedia (T. 8, skull), Gray, I. c. 283. 

 Hab. ? 



3. Orca magellanica, Burmeister, Ann. § Mag. N. H. 

 xviii. 101, t. 9. f. 5. Hab. Buenos Ayres. 



See O. destructor, Cope, Proc. Acad. N. S. Philad. 1866, 

 p. 293. Peru. 



** Beak oblong, trigonal ; intermaxillaries narrow, not half 

 as wide as beak. Lower jaw thick in front. Ophysia. 



4. Orca capensis (T. 9, skull), Gray, I. c. 283. Hab. 

 Southern Ocean, Cape of Good Hope. 



Family X. GLOBIOCEPHALID^E, Gray, I. c. 62, 313. 



Head blunt, very much swollen. Teeth in the front part of 

 both jaws, cylindrical, simple. Dorsal fin falcate. 

 Pectoral fin low down on the sides of the body ; fin- 

 gers elongate, many-jointed. 



I. Globiocephalus, Gray, I. c. 313. 



Skull — palate flat ; beak rather tapering in front ; first 

 to sixth cervical vertebrae anchylosed into one mass. 



* Black, with a white streak beneath. 



Pilot 



1. Globiocephalus svineval, Gray, I. c. 314. 

 Whale. Hab. North Sea, coast of England. 



Seel. Globiocephalus Edwardsii, Gi-ay, I. c. 320. Hab. 

 Capeot Good Hope; coloured exactly like that of North Sea. 



