88 Dr. H. Riley on the Squaloraia. 



in the Rays, since in the latter the vertebrae are consolidated into a single 

 piece, and are continuous with, and firmly united to, the two pieces of car- 

 tilage or scapulaB meeting- on the median line above them. 



The right side of the pelvis is less injured than the left, and resembles 

 that of several of the more common species of the Rays. 



From these details we trust it will be clear, that the specimen must have 

 belonged to the cartilaginous fishes ; that it has many points of resemblance 

 with the Squales, but still more with the Rays ; but that it differs from both of 

 these families by its peculiarly elongated head. 



So far as our own limited means of observation and comparison will allow, 

 we cannot, 'help thinking that it will be considered a new genus by those 

 who make Ichthyology a distinct study ; and as its generic characters would 

 be founded on parts belonging to the Squales and the Rays, we shall venture 

 to propose the name of Squaloraia. 



