PLATE 41. 



CARCHARIDAE. 



Fig. 1-3. Carcharias taurus (Page 25). 



1. Upper surfaces of the brain. 



2. Brain from the side. 



3. Brain from below. 



Though not of as high a type as that of Vulpecula, Plate 42, and greatly outranked by the brains of 

 the Carcharinidae and Cestraciontidae, Plate 43, fig. 1-4, the brain of Carcharias taurus makes a con- 

 siderable advance from that of Scapanorhynchus, Plate 40. 



