Hector. — Notes on New Zealand Whales. 



250 



succeeding vertebrae quadrate, but wider than high j neural arches of the six 

 posterior cervicals are thin with imperfectly developed central and lateral 

 spines j eighth and ninth vertebrae have feeble neural spines, and the lateral 

 processes expanded at the tip vertically ; the lateral processes of the tenth 

 and succeeding vertebrae are expanded in the horizontal plane, the tenth to 

 twenty-second having articular facets excavated on their lower marginal 

 surface ; the first lumbar is only distinguished by having an articular facet. 



Ribs fifteen, two belonging to the left side being lost; the first rib is 

 broad and short and with a single elongated articular surface ; the second and 

 third have a strong expanded articular angle and a subcylindrical compressed 

 capitulum ; all the rest of the ribs have a blunt subquadrate articular surface ; 

 the seventh rib is longest, being more than twice the length of the first, and 

 one-third longer than the fifteenth ; the thirteenth, fourteenth, and fifteenth 

 ribs are narrow, and irregular in outline and curvature. 



The total number of vertebrae is fifty-seven ; the chevron bones begin on 

 the forty-second, and the neural arch disappears on the fifty-second j the lateral 

 processes cease to be prominent on the forty-third, and are perforated by a 

 foramen on the forty-fourth and succeeding vertebrae that have a lateral 

 process. 



The scapula is triangular, wider than high ; the posterior edge is set at an 

 angle of forty-five degrees to the plane of the glenoid cavity, and the anterior 

 edge at seventy degrees ; it has a strong curved and compressed acromion 

 twice as long as a moderate pointed coracoid process, which is half the length 

 of the fore and aft diameter of the glenoid cavity, and equal to its transverse 

 diameter ; the external surface of the scapula is rather concave, and both are 

 marked by obscure ridges. 



The humerus is stout and half the length of the fore-arm, which is equal 

 to the length of the manus, which latter has four fingers. 



The sternum is triangular with four articulations, and is attenuated 

 posteriorly j hyoid bone is stout curved but simple. The total length of the 

 skeleton without the skull, which measures 17 feet, is 50 feet 6 inches j the 

 cervical region occupies 24 inches. 



Measurements. ' 



Total length of skeleton, without skull 



Length of skull 



Cervical region 



Width of atlas 



Height „ 



Width of axis 



2nd vertebra, height of centrum 



Ft. 



111 



50 



6 



17 







2 







2 



3 



1 



5 



4 



6 



1 







