SCANDINAVIAN CETACEA. 



275 



Length of 11th ribs along the curve on outer side 



„ shoulder-blade 



Width of 

 Length of acromion 



„ processus coracoideus 

 „ OS humeri 

 Width of „ at the middle 



J, „ „ lower end 



Length of radius in a straight line 

 Width „ at the middle . 



Length of ulna in a straight line without olecranon 

 Width ,, at the middle 



J, „ across olecranon 



Length of the anterior extremity from the shoulder-blade 

 „ ,, ossa pelvis 



„ ,, longest baleen 



2' 8" 



1' 2" 



1' lU" 



5i" 



31" 



10" 



4|" 



5i" 

 1' 5" 

 3f 



3' 7" 

 6" 



The skull is not unsymmetrical. Both the superior maxillaries, as well as the intermaxillaries, 

 extend equally far back. Its length is somewhat less than twice its width across the temporal bones. 

 The hinder edges of the orbital parts of the frontal bones are concave, and towards the sides directed 

 somewhat backwards. The processus zygoraatici of the superior maxillaries project rather laterally, 

 and the notches thus formed are larger than in the preceding species. The width of the skull is l|rds 

 the width of the beak before these notches, and the length of the beak is somewhat less than twice 

 its width. It tapers considerably forward, and is sharply pointed. Its upper outline is but slightly 

 curved. The palate bones extend before the processus zygomatici of the upper jawbones. The 

 lower jawbones are less compressed than in the preceding species, strongly curved, and extend 

 distinctly before the point of the intermaxillary bones. The processus coronoideus is high. The 

 distance from the middle of the lower jawbones to the beak is considerable, and the baleen seems 

 therefore longer than in the preceding species. The atlas is without tuberculum anticum, and has 

 a shallow groove along the middle of the lower side of the corpus. Its lateral processes are rather 

 short and compressed, higher than long, with the upper edge directed obliquely upwards and 

 forward. The axis alone has the lateral processes forming a ring. These are large and strongly 

 directed backwards. Those of the 3rd to 5th cervical vertebrse are directed backwards, and 

 those of the 6th and 7th are directed forward. The lower ramus (parapophysis) of the 6th cer- 

 vical vertebra is longer than the same on the three next preceding cervical vertebræ, so that its point 

 is quite near the point of the upper ramus of the same lateral process. The lower ramus of the 

 7th cervical vertebra appears only as a short pointed process, which is longer on the right side 

 than on the left. There is a rudiment of this parapophysis also on each side of the 1st and 2nd 

 dorsal vertebræ. The cervical vertebræ are all separate. The dorsal vertebræ are 11, and the 

 lumbosacral 12. The lateral processes of the lst-6th dorsal vertebræ are directed forward, those of 

 the 7th are directed straight out towards the sides, and those of the 8th — 11th are directed 

 slightly backwards. These processes are compressed on the first dorsal vertebra. The point of 

 the lateral processes on the 11th or last dorsal vertebra is thick, and differs from the same on 

 the lateral processes of the 1st lumbosacral vertebra, having a conspicuous facet for the last rib. 

 The lateral processes of the 1st lumbosacral vertebra are directed straight out. Those of the 



