FuK.'iil FfsJi ReiiKii U.S. 



V\. 



Fig. 1. Diodon forinosiis, %\>. now Outer surface of upper jaw. 



Grange Burn, near Hamilton. 

 Fig. L\ D. fon/iosus, sp. nov. Inner sui-face of same specimen. 

 Eig. 3. D. Jorniosiis, sp. nov. Profile of same. 

 Fig. -i. Diodoii blochii, Castelnau. Anterior view of upper 



jaw of one of the species now living in Port 



Phillip. 

 Fig. o. D. dlochii, Castel. Profile of same. 

 Fig. G. Ischyodus iiiortom\ sp. nov. Left mandibular tooth. 



Table Cape, Tasmania. 

 All figures of the natural size. 



VII. 



Fig. 1. Diodon forinosHS, ii\>. now Outer surface of upper jaw 

 of a full grown e.xanjple (Dixon Coll.). Beau- 

 maris. 



Fig. 2. D. for/nosus, sp. nov. Inner surface of same .specimen. 

 Both figures of natural size. 



YTII. 



Fig. 1. Difldofi for/iiflsies^ sp. nov. Inner surface of upper 



jaw. Beaumaris. 

 Fig. 2. 1). Jor/nosus, sp. nov. Inner sui'face of lower jaw. 



Beaumaris. 

 Fig. 3. I). forinosHS, sp. nov. Inner surface of lower jaw of a 



young example. Beaumaris. 

 Fig. I. 7J. forinosus, sp. nov. Inner surface of upper jaw of 



a young example. Grange Burn. 

 Fig. 5. D. Jori/iosiis, sp. nov. Inner surface of upper jaw of 



a full-grown example. 8howing the pile of 



strong palatal plates and the marginal alveolar 



ridges. Beaumaris. 

 Fig. G. The same : outer surface. 

 Fig. 7. Tlie same ; edge view. 



Fig. S. Diodnri coiinetvar?-e}isis, sp. nov. Outer surface of spine. 

 Fig. 9. The same ; inner surface. 

 iFig. 1 0. The same ; basal view. 



Figs. 1-7 of the natural size ; 8-10 magnified twice. 



