56 TURSIOPS. 
KEY 10; THE SPECIES; 
A. Teeth conical, smooth; palate without lateral grooves; 
pterygoids in contact. PAGE 
a. Plumbeous gray above, white beneath...... T. truncatus 56 
Be Al bldekt eisbo c ede he ee earn tee oe ae I gille ge 
Fig. XX. TURSIOPS TRUNCATUS. BOTTLE-NOSED PORPOISE. 
41. truncatus Montagu., Mem. Wern. Soc., 111, 1821, p. 73. True, 
Proc. Acad: Nat. Scien. Phill, 1903, p13. 
compressicauda Less., Cét., 1828, p. 199. 
commums Fitzin. (nec Cuv.), Carr, Dalm., 1846, p. 75. 
metis Gray, Ereb. & Terror, Zodl., 1846, p. 38, pl. 17. 
cymodice Gray, Ereb. & Terror, Zodl., 1846, p. 38, pl. 17. 
eurynome Gray, Ereb. & Terror, Zodl., 1846, p. 38, pl. 18. 
tursio (Tursiops), Elliot, Syn. N. Am. Mamm., rgor, p. 29. 
BOTTLED-NOSED PORPOISE OR DOLPHIN. 
Type locality. Coast of Greenland. 
Geogr. Distr. Atlantic Ocean, Mediterranean Sea, widely dis- 
tributed; Atlantic coast of Atlantic States, Maine to Florida, Gulf of 
Mexico. 
Genl. Char. Those of the genus. Frontal bone has no backward 
extension and the parietal is broad inferiorly. 
Color. Upper part of fin is plumbeous gray, tinged with purple, 
grading on sides into the pure white of the under parts. 
Measurements. Total length, 2907; of mouth, 319; height of 
dorsal fin, 229; breadth of flukes, 612. Skull: total length, 432; 
length of beak, 108; length of tooth row, 195; width between inter- 
orbitals, 191; length of mandible, 36s. 
42. gilli (Tursiops), Dall, Proc. Calif. Acad. Scien., v, 1873, p. 13. 
Elliot, Syn. N. Am. Mamm., rgor, p. 29. 
GILL’s DoLPHIN. Cow-FisH. 
Type locality. North Pacific Ocean. 
