208 GEOGRAPHICAL ZOOLOGY. [part iv. 



arctic and antarctic families. The spermaceti whale {Catodon 

 macrocephalus) abounds in the Pacific Ocean and in the deep 

 Moluccan Sea, and also in the Indian Ocean and the Mozam- 

 bique Channel. In the Atlantic it is scarce, although it occa- 

 sionally comes north as far as our shores. 



The genera of Catodontidse as given by Dr. Gray are, Catodon 

 (2 species ?), Warm Eastern Oceans ; Physctcr (1 species), " the 

 black fish," North Sea; Cogia (2 species), South Temperate 

 Oceans ; Euphysetes (1 species), Coast of Australia. 



Family 39.— HYPEEOODONTID./E. (9 Genera or Sub-Genera, 



12 Species.) 



General Distribution. — Atlantic, Mediterranean, Indian Ocean, and Southern 



Ocean. 



This family consists of the beaked whales, which have no per- 

 manent teeth in the upper jaw. The genera, according to Dr. Gray, 

 are, Hyper oodon (2 species) " bottle-nosed whales," North Sea ; 

 Lagenocetus (1 species), North Sea ; Epiodon (2 species), North 

 and South Atlantic; Petrorhynchus (2 species), Mediterranean 

 Sea and Southern Ocean ; Berardius (1 species), New Zealand ; 

 Xiphius (1 species) North Atlantic ; Dolicliodon (1 species), Cape 

 of Good Hope ; Neoziphius (1 species) Mediterranean ; Dioplo- 

 don (1 species), Indian Ocean. 



Family 40.— MONODONTIDiE. (1 Genus, 1 Species.) 



The " Narwhal " {Monodon monoceros) which constitutes this 

 family, is placed by Dr. Gray along with the " white whales," in 

 his family Belugidse. It inhabits the North Sea. 



Family 41.— DELPHINID^E. (24 Genera or Sub-Genera, 



100 Species.) 

 General Distribution. — All Oceans, Seas, and Great Rivers of the globe. 



This family, including the Porpoises, Dolphins, White Whales, 

 &c, may be described as small, fish-shaped whales, having teeth 



