585 



form process, as well as the distal epiphysis which constitutes the ossicle between the tibia 

 and the calcaneum. The antlers here show long bifurcate brow-snags and three branches 

 from the beam. The use to which they are put in removing the snow from the lichens which 

 constitute the winter food of the Rein-deer, gives a final purpose for the existence of the 

 antlers in both sexes. 

 From Lapland. 



Presented by William Bullock, Esq. 



3515. The skull and antlers of a male Rein-deer (Cervw Tarandus). 



The antlers spring from within an inch of the superoccipital crest, and the frontal bones 

 are proportionably extended backwards on each side of the quadrate parietal, in which the 

 sagittal suture is obliterated : the frontal suture is persistent, and is complex in its dentations 

 at its posterior half. The large lacrymal presents two canals upon its orbital border and a 

 deep oblong depression on its facial surface, above which is a vacuity between the frontal, 

 nasal, and maxillary, leading to the olfactory chamber. The right antler has developed a long 

 brow-snag, palmated and branched at its extremity ; that of the left antler is a simple short 

 styliform process, its place being supplied by the first branch from the beam. It is directed 

 unusually forwards. 



From Lapland. 



Presented by Mr. Leadbeater. 



3516. The skull and antlers of a male Rein-deer (Cervus Tarandus). 



The parietal bone has both its anterior angles produced in the form of narrow pointed pro- 

 cesses into corresponding notches of the frontal. In this skull also the left brow-snag is simple 

 or unbranched, but it is almost as long as the right, which shows the normal character. 



From Lapland. 



Presented by William Bullock, Esq. 



3517. The cranium and antlers of a young male Rein-deer (Cervus Tarandus}. 



In this specimen also the left brow-snag is simple, but is as long as the right, which has 

 the normal palmated and branched form. 

 From Greenland. 



Hunterian. 



3518. The calvarium and antlers of a young male Rein-deer (Cervus Tarandus). 



The left brow-snag is simple, styliform, and about half the length of the right, which pre- 

 sents the normal form. 

 From Lapland. 



Presented by William Bullock, Esq. 



3519. The antlers of a male Rein-deer (Cervus Tarandus), at the prime of maturity. 



Both brow-snags are equally developed with compressed branched palms. 

 From Siberia. 



Hunterian. 



4i 



