334 MAMMALIA: CETE. LI. 



and near shore, ascending rivers. (J5Jw.) (P. brachycium Cope; 

 P. lineata Cope.) 



575. LAGENORHYNCHUS Gray. (Xdyrjvos, flagon ; 



pvy%os, snout.) 



1101. L. acutus Gray. SKUNK PORPOISE, BAY PORPOISE. 

 Sides with broad stripes of white and yellow. L. 10 to 15 feet. 

 Coast of N. E. U. S., and in the open seas in large schools ; like 

 other porpoises, often swimming alongside of ships as if racing with 

 them. Common, used for bait. Two or three other species occur 

 in the N. Atl. (Eu.) 



576. GLOBICEPHALA Lesson. (Lat., globus, globe ; 



KefpdKrj) head.) 



1102. G. melas (Traill). BLACK Fisn. PILOT WHALE. GRIND 

 WHALE. Black ; arm about 4 in length. L. 20 feet. N. Atl., 

 common, in large schools, S. to N". J. (/xeXay, black.) ('w.) 



1103. G. brachyptera Cope. Black; arm 6 in length. Coast 

 of N. J. and S. Opa^vs, short ; Trrepov, fin.) 



577. ORCA Gray. (Latin name of a kind of whale.) 



1104. O. orca (L.). KILLER. SWORD GRAMPUS. Black, 

 white below. A most persistently voracious and destructive 

 cetacean, attacking all large sea animals, tunnies, sword-fishes, 

 seals, and all whales, even the largest, to the great annoyance of 

 fishermen. L. 20 feet or more. Dorsal 6 feet high. Atl. and Pac. 

 (EM.) (O. gladiator Bonnaterre.) 



578. DELPHINAPTERUS Lacepede. (SeX<k, dolphin ; 

 a, privative ; Trrepoz/, fin.) 



1105. D. leucas (Pallas). WHITE WHALE. BELUGA. Creamy 

 white; young dusky. N. Atl., S. to Cape Cod. L. 15 feet. (Eu.) 



579. GRAMPUS Gray. (A corruption of the French " grand 

 poisson.") 



1106. G. griseus (Cuvier). GRAMPUS. Cow FISH. Slate 

 color, with white scratches. L. 15 to 20 feet. N. Atl., not rare. 

 (En.) (Lat., gray.) 



FAMILY CXCII. ZIPHIID^J. (THE BOTTLE-NOSED 



WHALES.) 



This group is intermediate between the Sperm Whales and the 

 Dolphins. It is distinguished from the former chiefly by the very 

 small number of teeth, usually not more than four developed in the 

 lower jaw, these fitting into pits in the upper ; these teeth are mostly 

 developed only in the male. Dorsal small, posterior ; pectoral short, 



