Remarks.—Known only from a specimen from Alaska and another from the coast of Oregon.
Delphinus bairdii Dall
Dolphin
Description.—A slender porpoise about 6 or 7 feet long; long, narrow beak with 80-120 conical teeth; color above black tinged with greenish; sides gray; belly and throat white.
Remarks.—Recorded from California and probably ranges into Washington in off-shore waters.
Lissodelphis borealis (Peale)
Right whale porpoise
Description.—A small, beaked porpoise lacking a dorsal fin; color black with narrow white area from breast to tail; length about 4 feet.
Remarks.—A rare species described from waters 500 miles off the mouth of the Columbia River.
Lagenorhynchus obliquidens Gill
Striped porpoise
Description.—Length about 7 feet; beak not prominent; 44-46 conical teeth in each jaw; anterior edge of dorsal fin curved; color of upper parts greenish black; sides with one white or gray stripe posteriorly; underparts white.