BEAKED WHALES, FAMILY ZIPHIID^ TRUE. 45 



greater on second rib than on iirst, and on tliird is greater tlian on second. Oa 

 the third to sixth, inclusive, the distance is about equal. The tubercle is scarcely 

 distinguishable on the seventh rib, wliile on the eighth and ninth it is lacking, 

 these ribs joining the transverse processes by a terminal facet only. 



Newport (male). — Similar to those of the Barnegat skeleton, but first rib 

 maintains nearly the same breadth throughout. Neck thicker than in Barnegat 

 skeleton. Seventh rib terminates proximally in a single large rugose facet, wliich 

 connects with a similar facet on side of centrum of seventh thoracic vertebra. 



Charleston (female, jr.). — Similar to those of the Barnegat skeleton, but a 

 distinct tubercle on the seventh rib. Eighth and ninth ribs end proximally in a 

 transverse facet only, wliich is largest on the eighth. Tenth rib (represented by 

 a fragment) only half as broad as the preceding ones and more nearly round in 

 section. 



STERNUM. 



Barnegat City (female).— Five segments. Manubrium wider than long, con- 

 vex inferiorly. Deep anterior and posterior notches, about equal, the former with 

 an angular projection on each side. Facet for cartilaginous sternal rib thick and 

 prominent. Second segment wider than long, about equally notched anteriorly 

 and posteriorly, the two sides anchylosed together by a bony iaridge, about as wide 

 as the notches are deep. Third and fourth segments similar to second but smaller; 

 similarly notched; left portion a little longer than right. Fifth segment elongated, 

 left side very much so; the two sides joined by a narrow bridge; posterior notch 

 very deep. 



Newport (male). — Similar to sternum of Barnegat skeleton, but manubrium 

 scarcely wider than long; posterior notch much longer than anterior, with parallel 

 sides. Second and third segments similar to those of Barnegat skeleton but sides 

 of latter not completely anchylosed together. Fourth segment in two pieces, with 

 a wide interval between. Fifth segment triangular with deep anterior, triangular 

 notch, a narrow bridge, and short posterior prolongation (the left longer than the 

 right). 



Charleston (female, jr.). — Resembles the sternum of the Barnegat skeleton rather 

 than that of Xewjjort skeleton, but anterior jjarts cartilaginous. Opposite sides of 

 second, third, and fifth segments anchylosed together and those of fourth segment 

 nearly so. (PI. 2.5, fig. 2). 



Barnegat City (female). — Superior border irregular. Posterior angle acute. 

 Anterior and posterior borders nearly straight. Riilges distinct. Acromion 

 broad both at base and at tip, sharply bent ujnvard, so as to be parallel with an- 

 terior border of scapula. Coracoid nearly as long as acromion, slender, a little curved 

 upward, irregular and somewhat expanded at the end. 



Ne-wport (male). — Superior border irregularly rounded. Posterior angle ob- 

 tuse, anterior angle projecting. Ridges indistinct. Anterior and posterior bor- 

 ders nearly straight, but irregular. Acromion broad at base, tapering toward the 



