208 
GEOGRAPHICAL ZOOLOGY. 
[PART IV. 
arctic and antarctic families. The spermaceti whale ( Catodon 
maerocephalus ) 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 T), Warm Eastern Oceans ; Physeter (1 species), a the 
black fish,” North Sea; Cogia (2 species), South Temperate 
Oceans ; Ewphysetes (1 species). Coast of Australia. 
Family 39. — HYPEROODONTID M. (9 Genera or Sub-Genera, 
12 Species.) 
General Distributipn. — 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, Hyperoodon (2 species) “ bottle-nosed whales,” North Sea ; 
Lagenocetus (1 species), North Sea ; Ppiodon (2 species), North 
and South Atlantic; Petrorhynchus (2 species), Mediterranean 
Sea and Southern Ocean; Berardius (1 species), New Zealand; 
Xiphius (1 species) North Atlantic; Dolichodon (1 species), Cape 
of Good Hope ; Neoziphius (1 species) Mediterranean ; Dioplo- 
don (1 species), Indian Ocean. 
Family 40. — MONODONTIDZE. (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. — DELPHINIDiE. (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 
