SCANDINAVIAN CETACEA. 



289 



They are very long, sword-shaped, and curved backwards, with both the anterior and the hinder 

 edge, particularly the former, uneven, with elevations more or less prominent, and nearly corres- 

 ponding with the joints of the bones within. Their length on the foetus was, according to Eschricht, 

 nearly ith of the length of the body, and on the large specimen, according to Rudolphi, more than ^th, 

 m fact, nearly |rd of the same. The dorsal fin, which is before the vent, and has the anterior edge 

 of its base somewhat before the posterior third of the body, has rather a long base, but is very 

 low, and in old specimens has the appearance of a hump, having thereby given rise to one of 

 the names of the animal. Its obtuse point is directed backwards, and its hinder edge runs 

 straight down, and is sometimes somewhat curved inwards. It was |" high on the above- 

 mentioned foetus, and 1^" long at the base, and was 71" high on an older specimen. The caudal 

 fin is deeply forked behind, and has the hinder edge very uneven. Its width was about ird of the 

 length of the body on the specimen, 45' long, described by Rudolphi. It was smaller in the foetus, 

 being 8f wide ; less therefore than ith the length of body. There are a number of smaller dermal 

 tubercles, with one or two bristles, on both the upper and the lower jaw. There are 26 

 rather large, and 30 smaller, on the upper jaw. Most of the former are in irregular rows near 

 the upper lip, and the latter are on the point of the snout. There are 13—19 on'^each side of the 

 lower jaw. The colour is, above black, beneath, white with black spots. The pectoral fins are 

 white, both above and beneath. The caudal fin is above black, beneath, white with black borders. 

 The baleen is black, with brown bristles ; the number of blades is, according to Eschricht, about 

 400 on each side. 



T/ie Skeleton. — The following are some measurements of the skeleton of a young specimen 

 from Greenland, preserved in the Zoological Museum of the University of Lund. 



Length of skeleton entire 



„ skull ..... 



,, lower jaw along the curve, outer side 

 Height of „ at processus coronoideus 



1! „ „ the middle 



Distance between processus coronoideus and condylus 

 Length of corpus of the last (11th) lumbosacral vertebra 

 Width 

 Length of processus transversi of the 3rd lumbosacral vertebra, on 



which they are longest .... 



Distance between processus obliqui of the 3rd lumbosacral vertebra 

 Length of shoulder-blade (without cartilage) 

 Width „ „ . 



Length of os humeri 

 Width „ at caput 



Length of radius in a straight line 



,, ulna . 



. 34' 



6" 



. 10' 



^ 



. 10' 



n 



1' 



f 





10| 



1' 



6" 





8|' 





10| 



1 



9^' 





2|' 



2' 



2|' 



. 3' 



3" 



1' 



8|' 



1' 



2|' 



. 2' 



7g' 



2' 



2|' 



37 



