34. a. 29-36 teeth in each upper jaw; 28-36 in each lower jaw. 



(Spotted dolphins) Go to 35 



b. More than 40 teeth in each upper and lower jaw Go to 36 



NOTE: Characters in paragraph 35 are usable only on fresh specimens. Spotted dolphins in advanced stages of 

 decomposition can be distinguished only with museum preparation and examination. 



35. a. Bridle present (dark lines from eye to rostrum and from flippers to corner of mouth); cape on head 



distinct; no spinal blaze. 



Bridled dolphin, p. 108 

 b. Bridle absent though there is a light line from the flipper to the eye; cape indistinct; spinal blaze. 



Atlantic spotted dolphin, p. 104 



36. a. From 46-65 small, sharply pointed teeth; body dark gray on back, tan to light gray on sides, white 



on belly; beak dark gray or black above, white below, and often black-tipped; body to about 7 feet 

 (2.1m). 



Spinner dolphin, p. 110 

 b. From 40 to 50 teeth in each upper and lower jaw Go to 37 



37. a. Body to 9 feet (2.7 m); black to dark gray on back, gray on sides, white on belly; distinctive black 



stripes from eye to anus, eye to flipper, and dark dorsal coloration to side above flipper. 



Striped dolphin, p. 113 

 b. Body to 8.5 feet (2.6 m) but usually less than 7.5 feet (2.3 m); body dark on back with light thoracic 

 patch and crisscross or hourglass pattern on side; black stripe from middle of lower jaw to origin 

 of flipper. 



Saddleback dolphin, p. 116 



168 



