Phocoena vomerina (Gill)
Harbor porpoise
Description.—A small, stout-bodied porpoise with a rounded head. Length 5 to 6 feet. Teeth small, slightly flattened; about 25 above, 24 below; color blackish or brownish to liver color.
Remarks.—Small schools of harbor porpoises are common in Puget Sound, among the San Juan Islands, and in the Straits of Juan De Fuca. This is the commonest inshore porpoise but, because of its smaller size, is less well known to most persons than are the blackfish and killer whale.
Phocoenoides dalli (True)
Dall porpoise
Description.—A small porpoise, about 6 feet in length, with pointed head and moderately stout body. Teeth small, 23 above and 27 below. Color greenish black with flanks or posterior sides white.
Remarks.—A rare off-shore species.
Physeter catodon Linnaeus
Sperm whale
Description.—A toothed whale about 60 feet long; head enormous, squarish; teeth conical, 50 or fewer in lower jaw.
Remarks.—Occurs off the coast of Washington and rarely enters the Straits of Juan De Fuca.