corner of mouth.
Rides bow waves.
Distribution in tropical waters, primarily in West Indies.

[Sidenote: SPINNER DOLPHIN

_Stenella longirostris_

p. 110]

Body to at least 7 feet (2.1 m) long.
Body dark gray on back; tan on sides; white on belly.
Beak often long and slender, usually black above, white below.
Tip of snout and lips distinctly black.
Dorsal fin moderately falcate to triangular and very erect.
Rides bow waves.
Often jumps and spins on longitudinal axis.
Distribution in oceanic and coastal tropical waters.

[Sidenote: STRIPED DOLPHIN

_Stenella coeruleoalba_ = _Stenella styx_

p. 113]

Body to about 9 feet (2.7 m) long.
Body dark gray or bluish gray on back; gray on sides; gray or
white on belly.
Distinctive black stripes from: 1) eye to anus, 2) eye to
flipper.
Distinctive black blaze from behind dorsal fin to side above
flipper.
Rides bow waves.
Distribution temperate, subtropical, and tropical; seldom close
to shore.

[Sidenote: SADDLEBACK DOLPHIN

_Delphinus delphis_

p. 116]

Body to 8.5 feet (2.6 m); usually less than 7.5 feet (2.3 m)
long.
Body brownish gray to black; belly and chest white; crisscross
(hourglass) pattern of yellow tan on sides.
Distinct black stripe from center of lower jaw to flipper.
Rides bow waves.
Distribution temperate and tropical; seldom close to shore.

[Sidenote: FRASER'S DOLPHIN

_Lagenoldelphis hosei_

p. 120]

Body to at least 8 feet (2.4 m) long.
Body very robust in front of dorsal fin, resembling cross between
saddleback dolphin and Atlantic white-sided dolphin.
Beak very short and indistinct.
Distinct black stripe from beak to area of anus.
Dorsal fin and flippers small.
Distribution tropical (not yet recorded in western North
Atlantic).

[Sidenote: ATLANTIC WHITE-SIDED DOLPHIN

_Lagenorhynchus acutus_

p. 123]

Body to about 9 feet (2.7 m) long.
Dorsal fin part gray, part black; tall and distinctly falcate.
Distinctive patch of white on side; tan or yellow coloration
below and behind dorsal fin, often visible on swimming animal.
Beak short; all dark.
Does not usually ride bow waves.
Distribution Cape Cod to southern Greenland.

[Sidenote: WHITE-BEAKED DOLPHIN

_Lagenorhynchus albirostris_

p. 126]

Body to about 10 feet (3.1 m) long.
Dorsal fin all black, tall, and distinctly falcate.
Two pale areas: one in fro