107 



" Steel-gray, with numerous irregular white streaks; beneath white ; 

 body thicker in the middle ; tail slender, long, keeled ; rounded on the 

 belly ; head not swollen, ending in a long nose ; upper jaw short, 

 toothless ; lower jaw much longer, bent up, and with two large conical 

 teeth at the end ; teeth nicked near the tip ; the eyes small, oval ; 

 blower-s large, semilunar ; pectoral fins short ; dorsal fin rather beyond 

 the middle of the back ; the caudal fin broad, festooned. Length, 

 nearly 16 feet. Inhab : Nice ; common, March and September," from 

 Dr. Gray. 



ZIPHITJS IKDICTJS, Van Beneden. The Cape Ziphius. 



Synonyms Ziphius Indicus, Van Beneden. 



Ziphius du Cap-de-Bonne jEsperance, Gervais. 

 PetrorJiynchus Capensis, Gray, S. & W., p. 346, Suppl. p. 98. 



Inhab : Coasts of Cape of Good Hope. 



A well-defined species, ascertained from skulls in the Paris and 

 British Museums, and likewise from fossil remains found in the red 

 crag beds of England of the Pleiocene period, the strata of which 

 contain a great number of examples of extinct species of this and other 

 families, and a few only of recent forms. 



Genus CnoKEziPHrus, 1 Duvernoy. 



The intermaxillaries at their anterior extremity are even and, 

 connecting at their tips, display prominently a large channel : they, 

 however, become towards their base very asymmetrical, forming there a 

 deep funnel-shaped cavity. 



CHONEZIPHIUS PLAKIKOSTEIS, Cuvier. 



Synonym Ziphius planirostris, Cuvier. 

 Found in the crag formation, France. 



Family XI. PHYSETERID^]. 2 



Head of moderate or excessive size, more or less truncated in front ; 

 mouth placed well beneath, rendering it necessary for the animal to 

 turn on its side or back in order to seize its prey, an action not known 

 in any other cetacean ; upper jaw toothless 3 , broader, more massive, and 

 slightly shorter than the lower one ; under jaw slender, cylindrical in 

 front, and received within the pendent upper lips, as in a furrow ; armed 

 with numerous teeth, having pulp-cavities at their base ; symphysis of 



1 x&v^i a tunnel or funnel, and Ziphius. 



2 <j)vo"r)T r f)p, blower. 



8 That is, without functional teeth. 



