16 



ARKIV FÖR ZOOLOGI. BAND 12. N:0 10. 



Although as mentioned above, the exact cond^-lobasal 

 length cannot be stated, I think a fairly good computation 

 of the same can be obtained by comparing the first measure- 

 ment above indicating the distance between the tip of the 



premaxillaries and the lower lateral corner of the occipital 

 (lambdoid crest) with the corresponding dimensions of other 

 skulls of the thous- gvou-p, the condylobasal length of which 

 is known. In specimens with a condylobasal length of about 

 132—134 mm. the dimension in question is about 120,5— 



