222 DESCRIPTION OF A SPECDIEX 



The second piece, 33 1-2 inches in length, begins above by a sharp extremity, which is 

 considerably bent upon the rest of the bone and points inward. As it grows broader a 

 a small spine appears on either side, after which the bone gradually assumes a normal ap- 

 pearance. These fragments were firmly united by ligamentous structures. The ends ex- 

 hibit the signs of atrophy rather than any attempt towards reparation. 



The Sternum. Plate vi, fig. 10. 



This bone is very porous and has suffered some injuries, particularly in the upper and 

 outer part of the right side. It resembles very closely the sternum of the whale in Alex- 

 andra Park, figured by Mr. Flower [Proe. Zool. Soc, 1864, p. 393] ; but the posterior pro- 

 cess is not so long. The only peculiarity of the bone in this specimen is its asymmetry. 

 The inferior surface is, as usual, convex laterally and concave antero-posteriorly. The 

 posterior projection is curved very much to the right, and, to increase the distortion, the 

 lateral projection of the right side bends a little downward and that of the left a little up- 

 ward. The former of these lateral processes appears to have been originally shorter than 

 the other, but it is impossible to say accurately how much is wanting. 



Greatest length in a straight line 1'2.75 in. "> Without any 



" breadth " " 15.75 " ) restoration. 



Aj^terior Extremity. 



Scapula. — This bone agrees very closely with the one figured by Gervais and Van 

 Beneden, except that the outer surface appears more plane. 



MEASUHEMENTS. 



Length of superior border (following curve) . . . . ' . . . . 42.37 in. 



" in stniiglit line from the posturior superior to anterior superior angle . . 34.75 " 



Greatest height from about middle of glenoid cavity 20.62 " 



Length of anterior border to origin of coracoid (in straight line) .... 15.62 " 



" posterior border to back of glenoid cavity 16.75 " 



Circumference of neck 23.62 " 



Length of glenoid cavity to root of coracoid 9 " 



Breadth « " 6 " 



Length of coracoid along superior border (about) 4.75 " 



Breadth at base 3.5 " 



« at point (about) 2.75 " 



Length of acromion along inferior border ......... 8.5 " 



" " " " superior " 5.5 " 



Breadth at point 4.25 " 



The superior border is pretty regularly curved, except that towards the last fourth it in- 

 •clines rather suddenly downward. The external surface is regular and very slightly concave ; 

 there is, however, one slight vertical prominence a little in front of its middle, and also a 

 pretty well marked spine running into the acromion, which is thin and bent a little inward 

 at the superior anterior angle. There is a tolerably well marked supraspinous fossa. The 

 anterior edge is sharp ; the posterior, particularly near its lower end, thick and rounded. 

 The inner surface has eight slight ridges diverging from tlie glenoid fossa ; the anterior, 

 however, does not reach it. Mr. Murie gives the same number. 



The glenoid fossa is irregularly oval and very rough, with projecting edges ; it is con- 

 tinued anteriorly into the coracoid process, which is short, solid, and bent inward. 



