ORCINUS. PSEUDORCA. 51 
35. orca (Delphinus), Linn., Syst. Nat., 1, 1758, p. 77. 
gladiator (Delphinus), Bonnat., Cét., 1789, p. 23. 
arcticus and europeus Gerv. & Van Ben., Ost. Cét., 1804, p. 314. 
schlegelit Lilljeb., Roy. Soc., 1866, p. 235. 
latirostris Gerv., Ost. Cét., 1868, p. 543. 
stenorhyncha Gray, Proc. Zodl. Soc., 1870, p. 74. 
gladiator (Orcinus) Elliot, Syn. N. Am. Mamm., 1901, p. 22. 
ComMon KILLER WHALE. 
Type locality. Coast of Europe. 
Geogr. Distr. All seas. 
Genl. Char. Size large, other characters those of the genus. 
Color. Upper parts of head and body and all the fins black; 
under jaw, throat, breast, and belly white; a white trident-shaped 
area extends back to the vent with one tine, the other two passing 
obliquely upward and backward on the sides; a large white patch 
behind the eyes; behind dorsal fin is a crescentic purple area. 
Measurements. Total length, 16 feet. 
22. Pseudorea. Killer Whales. 
1Io—I0 
Io—- 10 
= 40. 
Pseudorca Reinh., Overs. K. Dan. Vidensk. Sezsk. Forh. Kj6benh., 
1862, p. 151. Type Pseudorca crassidens Owen. 
Rostrum short, broad; rostral portion of intermaxille truncate 
at distal end; pterygoids short, approximated on median line; teeth 
large, roots cylindrical; vertebra, 50; the first to sixth or seventh 
coalesced; pectorals moderate, pointed; dorsal near middle of back, 
moderate, falcate; head elevated before blow-hole, compressed; 
snout truncate. 
36. crassidens (Phocena), Owen, Brit. Foss. Mamm., 1846, p. 516. 
meridionalis Flower, Proc. Zoél. Soc., 1864, p. 420. 
destructor Cope, Proc. Acad. Nat. Scien. Phil., 1866, p. 293. 
grayt Burm., Ann. Mus. Pub., Buen. Aires, 1, 1864-69, p. 367, 
pl. XI; 
crassidens (Pseudorca), Elliot, Syn. N. Am. Mamm., 1901, p. 23. 
LARGE-TOOTHED KILLER WHALE. 
Type locality. Coast of Lincolnshire, England. 
Geogr. Distr. All seas. 
Genl. Char. No beak; head sloping gradually from blow-hole to 
end of snout; dorsal in center of length, narrow, moderate; pectorals 
small. 
Color. All black. 
