716 PROF. W. LILLJEBORG ON HALCROSIA AFZELII. [June 27, 



From the anterior angle of the orhits a tolerably highly raised ridge 

 passes over each of the ossa lacrymalia, and extends somewhat more 

 than a third of the nose's length ; and these ridges converge as they 

 approach the tip of the nose. The nasal bones extend so far into 



Fig. 1. 



Head of Halcrosia afzelii. 



tlie cavity of the nostrils as almost entirely to constitute the division 

 between them, and leave only a very small space occupied by carti- 

 lage between themselves and the back-turned processes of the inter- 

 maxillary bones. The head, when looked at in profile, exhibits 

 almost the same strongly marked concavity over the nose as the 



