THE LONG-SNOUTED CHIMAEROID OF JAPAN". 9 



an almost transverse plane, as in Chimaera, for example, they meet in 

 an acute angle, their free edges continuing the long cutting plane of 

 the " maxillary " plates. (Plate I, Fig. 5). 



In the region of the snout the unpaired (rostral) cartilage is of 

 extraordinary size. It measures one and one half times the length of 

 the entire cranium. It is stout, narrow, and somewhat spatulate : at 

 its proximal end, where it is securely attached to the cranium, there 

 is a (movable) joint. The shorter, more anterior supporting element 

 of the snout is one of a pair, its fellow arising close beside it, as is 

 shown in the figure. 



The more prominent relations of the complex labial and related 

 cartilages are indicated in Text-fig-. 1, the elements having been 



Text-Eig. I. Diagram showing lateral aspect of uouth cartilages of 

 " Harriot ta " jxicifica. 



