. Cetaceans of the Channel Islands National Marine Sanctuary / prepared for National Oceanic and Atmospheric Administration, Channel Islands National Marine Sanctuary and NOAA, National Marine Fisheries Service by Stephen Leatherwood, Brent S. Stewart, Pieter A. Folkens. Whales California Channel 21. a. Distributed coastally in patches above Pt. Conception, rarely ranging as far north as Barrow Alaska; 23-28 teeth in each upper jaw, 22-26 teeth in each lower jaw. * Harbor Porpoise, Phocoena phocoena (B) b. Distribution limited to upper end of Gulf of California in the Colorado river
. Cetaceans of the Channel Islands National Marine Sanctuary / prepared for National Oceanic and Atmospheric Administration, Channel Islands National Marine Sanctuary and NOAA, National Marine Fisheries Service by Stephen Leatherwood, Brent S. Stewart, Pieter A. Folkens. Whales California Channel 21. a. Distributed coastally in patches above Pt. Conception, rarely ranging as far north as Barrow Alaska; 23-28 teeth in each upper jaw, 22-26 teeth in each lower jaw. * Harbor Porpoise, Phocoena phocoena (B) b. Distribution limited to upper end of Gulf of California in the Colorado river delta and shallow margins of coast and oceanic islands (rarely reported); 20-21 teeth per upper jaw, 18 teeth per lower jaw. * Cochito, Phocoena sinus (T) 22. a. Distinct dorsal fin absent, but may have small longitudinal dorsal ridge near midpoint of back Go to 23 b. Distinct dorsal fin present, in middle or forward third of back Go to 24 23. a. Body black with white hourglass pattern on belly; dorsal fin completely absent; beak very small but distinct; 37-49 extremely fine peglike teeth per jaw; maximum body length about 3 m; distribution primarily temperate oceanic between about 30 N and 50 N. * Northern right-whale dolphin, Lissodelphis bonalis (A) b. Adults white, young slate gray or brownish; 8-11 teeth in each upper jaw, 8-9 in each lower jaw; short broad rostrum; maximum body length m; distribution primarily arctic, above Unimak Pass, though occurs in Cook Inlet, and rarely near Kodiak Island and in Yakutut Bay. * Beluga or white whale, Delphinapterus leucas (P) c. No visible teeth (or two teeth) in upper jaw of adults only; in males (sometimes females) one or both teeth grow to a m tusk in left-hand (sinestral) spiral; no rostrum; maximum body length 5 m; distribution arctic, rarely reported from Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
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