Kogia breviceps (Blainville)
Pigmy sperm whale
Description.—Similar to the sperm whale in proportions but less than 10 feet in length.
Remarks.—A rare species whose habits are little known. The available information concerning this species in the Atlantic has been summarized by [Allen] (1941).
Rhachianectes glaucus (Cope)
Gray whale
Description.—A relatively slender whale, about 40 feet in length; dorsal fin absent; baleen short, yellow in color; color of body mottled gray or blackish.
Remarks.—The gray whale was once abundant and occurred off the coast of Washington in spring and summer migrations. Hunted until now rare.
Balaenoptera physalus (Linnaeus)
Finback whale
Description.—A relatively slender whale, up to 82 feet in length; dorsal fin far posterior, prominent; baleen in two slabs, well developed, about two feet in length and gray in color; color of body blackish or brownish above, white below.
Remarks.—Recorded off-shore.