DRUMMOND S ECHIODON. 



423 



" The two large teeth, resembling serpent's fangs, which 

 terminate the upper jaw on each side, have suggested the 

 generic appellation of Echiodon ; and the specific name of 

 Drummondii is proposed in honour of its discoverer." 



The figures below represent a side view of the head, the 

 mouth open to show the form and situation of the teeth, en- 

 larged ; and a front view of the anterior terminal teeth, also 

 enlarged. The illustrations here used are derived from Mr. 

 Thompson's paper in the Transactions of the Zoological 

 Society already quoted ; and I with pleasure avail myself of 

 the opportunity in this instance afforded me of recording my 

 obligations to Mr. Thompson for his kind and zealous co- 

 operation in zoology, and particularly for the loan of this rare 

 specimen, and many other Irish fishes, for examination. 



