268 



LILLJEBORG ON THE 



Balænoptera gkjas. Escliricht has, at the above-cited place, confounded this species and the next pre- 

 cedinsr under the name Pterobalæna boops. 



Measurements of Balanoptera laticeps. 



Length of animal 



Circumference of body at the vent 



Distance from point of lower jaw to pectoral fins 



,, upper jaw to dorsal fin 



„ lower jaw to the vent 



Length of pectoral fins . 

 Width of 



Length of base of dorsal fin 

 Height of dorsal fin 

 Width of caudal fin 

 Length of skeleton 



„ skull in a straight line 

 Width of skull across temporal bones 

 Length of lower jaw along the curve on outer side 

 Circumference of one lower jaw-bone at the middle 

 Height of one lower jaw-bone at processus coronoideus 

 Distance from processus coronoideus to hinder edge of condylus 

 Length of corpus of last (thirteenth) dorsal vertebra 

 Width „ „ « 



Length of processus transversi „ 



Length of corpus of third lumbosacral vertebra 

 Width „ „ 



Length of processus transversi of „ 

 Length of corpus of the last (fourteenth) lumbosacral vertebra 

 Width „ „ „ 



Length of processus transversi of „ 



Length of first rib along the curve, outer side 



„ sixth rib (the longest) 



Width „ at the middle 



Length of shoulder-blade 

 Width „ 



Length of os humeri 

 Width „ at lower end 



Length of radius 

 Width „ at the middle . 



Length of ulna without olecranon 

 Width „ at the middle . 

 Length of anterior extremity from the shoulder-blade 



The animal 

 according to 



Rudolplii. 

 Young female. 



The skeleton 



in the Museum 



in Bergen. 



Young. 



33' 4" 

 9' 

 9' 4" 



20' 



21' lOi" 

 3' 8i" 

 81" 

 1' 6|" 

 1' 4i" 

 6' 3" 



30' 2" 



1' 3" 

 lOf 



1' or 



Si" 

 9'' 



t\b" 



8f 

 9" 



7r 



9" 



5f" 

 2|" 

 3|" 

 2" 

 2?" 

 2" 

 91" 

 6" 



1' 71" 

 2" 



1' 61" 



1' 0,1" 



5' 



The skeleton of this whale in Bergen and that described by Rudolphi are of almost equal 

 length. A third specimen of this species. No. 17 in Eschricht's list, the skeleton of which is 

 preserved in the Zoological Museum in Leiden, was 33' 4" long, or about the same length as the 



