. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. ii. a. 20-26 teeth in upper |3\vs. 18-24 in lower jaws; body to m; teeth may he extensively worn. * Bottlenose dolphin. Turswps iruncatus (A) b. 26 or more teeth in both upper and loner jaws Go to ij j 5. a. 54-48 teeth m each jaw; body color varies with age and stock but includes increased spotting with age and size. * Spotted dolphin, Stcnclhj Mtcmtata (T) 1. Body robust to m, dark silver, heavily spotted; distributed within 60 nm ot coast south of about 20 N. * Coastal spotted dolphin (T) 2. Body elongat
. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. ii. a. 20-26 teeth in upper |3\vs. 18-24 in lower jaws; body to m; teeth may he extensively worn. * Bottlenose dolphin. Turswps iruncatus (A) b. 26 or more teeth in both upper and loner jaws Go to ij j 5. a. 54-48 teeth m each jaw; body color varies with age and stock but includes increased spotting with age and size. * Spotted dolphin, Stcnclhj Mtcmtata (T) 1. Body robust to m, dark silver, heavily spotted; distributed within 60 nm ot coast south of about 20 N. * Coastal spotted dolphin (T) 2. Body elongated to 2.; m, less heavily spotted; distributed from south ot Cabo San Lucas to below Equator and west to 145 W. * Offshore spotted dolphin b. 46-65 teeth in each ]aw; spotting absent Go to 54 54. a. Dorsal fin erect, triangular or canted slightly forward; beak long and slender; teeth fine and sharply pointed. * Spinner dolphin, StcneUa iongircstns (T) 1. Adult males have pronounced postanal hump and forward canted dorsal fin; body length to m. * Eastern spinner dolphin 2. Body more girth\', larger, to 2 m; belly white; sharp color differential from the dark back and sides to white belly; dorsal fin falcate. * Whitebellied spinner dolphin 5. Body larger, to over 2 m; dorsal fin falcate; three part color pattern, dark cape, lighter sides, white belly. ' Hawaiian and Marquesan spinner dolphin b. Dorsal fin falcate or slightly falcate Go to h 3 5. a. Body to m; black to dark gray on back, gray on sides, white on bell\' and throat; distinctive black stripes from eye to anus, eye to flipper, and dark dorsal coloration to side above flipper; dis- tinctive light shoulder blaze extending back and up from light lateral field; rare north of Baja California. * Striped dolphin, StiniUa cocruleoalba (T/B) b. Body to maximum of m but usually less than m; body dark on back with light thoracic patch and crisscross or hourglass pattern on side; cape dips in \'-shape just below do
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Keywords: ., bookcentury1900, bookcoll, booksubjectcetacea, booksubjectmammals
