[1. Vet. Akad. Handl. Bd 31 Ne 4. 



Taf 1 



:Kb 



*, 







V 









\0/ 

 X 





N 



\ 



X 

 \ 



/ \ \ 



1 





\ 

 s 





\ 

 \ 



\ 





A 





\ 

 \ 

 \ 

 \ 

 \ 

 \ 

 \ 

 \ 



/ 





/T^6 \ 



-X 



0\ 



Tig-,4. 



Fig-. 2. 



Hg-,3. 



FiqA. 



lith W Schlachter, Stockholm 



