8 Transactions,—-Zoology, 
Inches, 
Breadth of coracoid at base es P “i re i» n 8 
Length of acromion.. ne a a as $a vs 8 
Greatest width of acromion A a E zs 82 
AS diameter of deni cate oe os eo - 9} 
Transv m ay e: s$ ut 62 
Pimp of glenoid M ee - ee ee ee eo 25 
The Humerus.— . 
Greatest length As Ke gs Es zs ia E E 
» readth at aai xs ne = sa E. 91 
i »  $» narrowest Aem m shaft ne ‘a M E 6$ 
, condyles oe we ee oe ee . 94 
G of ak s i» x T ucc M 
a » middle dt dhafi . me ġa S s s 388 
The Radius.— 
Greatest length be a ^P s; i — 
Breadth of head .. x "^ AE ee a $t Y? $ 
nc of head ka : 
at middle of shaft i» 
rcc at middle of shaft .. 
Diameter of distal end of shaft .. : ve is Ker s 6 
eer 2 d 33 M x. s 5 R FT 
The Ulna.— 
Greatest length ee ee ee ee eo ee ee ee 29 
Length of shaft 
Circumference of shaft at neck 
Diameter = » middé .. 
Circumference ,, h n Tu PES Ai nm "s DI 8 
Width of distal end .. 
Circumference of distal i: Ses RA š 12 
Length of olecranon, taken jasi to shaft i 
It would be quite superfluous to enter into any ane description of 
the skeleton, the correspondence with published accounts of Balenoptera 
musculus of the Northern Hemisphere being so close as, in most respects, 
to amount to identity. Indeed, with one or two trifling alterations, many 
of Van Beneden and Gervais’s figures of that species* might have been taken 
from the present specimen. ‘There are, however, one or two points in 
which the skeleton appears to differ from those hitherto described. 
1, The Nasals (fig. 1).—In these the anterior processes are unusually 
large, and the bones are altogether larger in proportion to the skull than is 
usual in B. musculus. For instance, in the Alexandra Park skeleton,t with 
a skull 38 inches longer than that of the present specimen, the nasals are 
four inches shorter, the same width at their posterior ends, and two inches 
* Ostéographie des Cétacés, 1 Flower, P.Z.S., 1864, p. 411, 
