. An account of the beaked whales of the family Ziphid in the collection of the United States National Museum, with remarks on some specimens in other American museums. Whales. BEAKED WHALES, FAMILY : TRUE. Dimensions of four skeletons of Ziphius caviroslris—-Continued. 49 Measurements, Metacarpals: Length of first Length of second Length of third Length of fourth Length of fifth Phalanges: Length of first phalange of first digit Stemuin: Total length Length of manubrium Breadth of manubrium Length of fifth segment Breadth of fifth segment Ribs: Length of first rib (straight) Breadth
. An account of the beaked whales of the family Ziphid in the collection of the United States National Museum, with remarks on some specimens in other American museums. Whales. BEAKED WHALES, FAMILY : TRUE. Dimensions of four skeletons of Ziphius caviroslris—-Continued. 49 Measurements, Metacarpals: Length of first Length of second Length of third Length of fourth Length of fifth Phalanges: Length of first phalange of first digit Stemuin: Total length Length of manubrium Breadth of manubrium Length of fifth segment Breadth of fifth segment Ribs: Length of first rib (straight) Breadth of first rib at proximal end. Breadth of first rib at distal end Length of fifth rib (straight) Length of ninth rib (straight) Baraegat City, New Jersey. 20971 female, adult. Newport Rhode Island. 49599 male, adult. mm. mm. 31 28 52 55 52 58 44 L\ 37 39 27 44 "803 821 259 306 286 333 C170 C184 133 168 405 410 88 110 63 80 785 770 620 620 Charleston South Carolina. 21975 female, <• Without cartilages. b With cartilages. PHALANGEAL FORMULA. e Left side. The formulas for the ossified phalanges in two American ° and three Old World specimens are as follows: Phalangeal formula of five specimens of Ziphius caviroslris. Locality. Newport, Rhode Island Bamegat City, New Jersey Villefranche, France (Haeckel) Pisa Museum, Italy (Van Beneden) Warrington, New Zealand (Scott and Parker) II. 6 6 5 3(?) 5 m. IV. SUMMARY OF DIFFERENCES IN SKELETONS. The chief differences between the Bamegat City and Newport skeletons are in the size and form of the processes of the cervical vertebrae, the form of the seventh and eighth thoracic vertebra? and of the ribs coimected with them, the direction of the acromion of the scapula, the shape of the first phalange of the first digit, and of the posterior segments of the sternum. As far as the processes of the cervicals are concerned, these are known to be extremely variable in all cetaceans. The " The Bue
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