STRANDED AT LONGNIDDRY. 



207 



Length of male fcetus, ..... 



From tip of lower jaw to posterior end of blow holes, 



From posterior end of blow-holes to posterior border of dorsal fin, 



From posterior border of dorsal fin to interlobular median notch of tail, 



Antero-posterior diameter of blow-holes, . 



Transverse diameter of blow-holes, 



From tip of lower jaw to angle of mouth in a straight line, 



From tip of lower jaw along curve to angle of mouth, 



From angle of mouth to anterior border of root of flipper, 



From tip of lower jaw in a straight line to anterior border of root of flipper 



Length of flipper along anterior border, . 



Greatest diameter of flipper from anterior to posterior border, 



Girth of flipper at root, ..... 



Girth of body just behind dorsal fin, 



Girth round root of tail, .... 



Between extreme points of tail-lobes in a straight line, 



Between extreme points of tail-lobes along posterior concave border, 



Greatest girth of tail-lobe, .... 



From median notch of tail to anal orifice, 



Transverse distance between nipple fossae, 



From anal orifice to midway between nipple fossse, 



From nipple fossa to fold of skin at root of penis, 



Length of penis, ..... 



Vertical diameter of dorsal fin, . 



Greatest transverse diameter of cavity of mouth, . 



Feet. 



Inches 



19 



6 



3 



9 



10 



8 



5 



1 







6 







31 



3 



11 



4 



6 



1 



10 



5 



9 



3 



7 







9 



1 



10J 



3 



6 



1 



6 



4 



7 



5 



6 



2 



7 



6 



2 







3 







H 







n 







ii 







°2 



1 



9 



A vertical line, drawn from the root of the posterior border of the dorsal fin 

 to the ventral mesial line, was 16^ inches behind the anal orifice. 



The displacement of the foetus and the torn state of the membranes did not 

 give me the opportunity of observing the exact relations of the latter to the fcetus 

 and to the mucous surface of the uterus. Although several square yards 

 passed through my hands, yet I did not succeed in recovering the whole extent 

 of these important structures. Notwithstanding these deficiencies many points 

 of interest bearing on the placentation of the cetacea were observed. 



The outer surface of the chorion had the general villous appearance which 

 is characteristic of the diffused form of placenta. In my first, and somewhat 

 hurried inspection of this membrane, I did not notice any portion which did 

 not possess villi. But on a second examination, made at more leisure on the 

 membrane preserved in spirit, I observed that a portion of the chorion was 

 bare. Unfortunately this had been torn across and a portion lost, so that the 

 proper form of the non-villous part could not be ascertained. It had appa« 

 rently, however, been of some extent, for the portion preserved was oblong in 

 form, and measured 11 inches by 3. In all probability it had formed a part of 

 one of the prolonged poles of the membrane. 



The villi began at the edge of this bare part by a well-defined line ; immediately 

 beyond and parallel to which the chorion was doubled on itself, so as to form a 



