^'iG. 









1. 



T,' 



iconodon ferox . 



2. 





)> 



occisor. 



2 a. 





)) 



3> 



3. 





>> 



major. 



4. 





)) 



sp. ind. 



5. 





jj 



>> 



5 A. 





3? 



)! 



6. 





)) 



«r/i'2or (?). 



PLATE IV. 



Portions of upper and lower jaws ; nat. size : a, upper molar ; 



magn. 4 diam. : b, right, c, left, mandibular ramus ; both 



magn. 2 diam. 

 Right and left mandibular rami ; nat. size. 

 Teeth of left ramus; b, teeth of right ramus; both magn. 



2 diam. 

 Right mandibular ramus ; nat. size : a, section of fractured 



fore part. 

 Right mandibular ramus ; nat. size. 



Portion of right maxilla; a, under view; b, end view ; nat. size. 

 Side view ; magn. 3 diam. 

 Right mandibular ramus; nat. size : a, ib., three molars ; magn. 



3 diam. 



1 .TriacantJiodon serrula. Portion and impression of left mandibular ramus : a, ib. ; magn. 



2 diam. 



8. ,, „ Counterpart impression and portion of the same ramus ; nat. size : 



a, ib. ; magn. two diam. 



9. Flagiaulax minor. Dentigerous part of right mandibular ramus and teeth ; nat. size. 

 9 a. ,, ,, Ib. ; magn. 3 diam. : b, the two molars ; magn. 6 diam. 



10. ,, BecMesii. Portion and impression of right mandibular ramus; nat. size. 

 10 a. „ „ Ib. ; magn. 3 diam. : b, condyle, magn. 3 diam. : c, condyle of 



Hypsiprymmis minor, nat. size: d, condyle of Thylacinus ; 

 ■g^rd nat. size. 



11. „. ,, Counterpart impression and portion of the same ramus ; nat. size. 

 11a. ,, ,, Ib. ; magn. 3 diam. 



12. „ ,, Fragment of right mandibular ramus ; nat. size. 



12 a. „ ,, Ib. ; magn. 3 diam. : b, working surface of the two molar teeth; 



magn. 3 diam. 



13. „ „ Pore part of right mandibular ramus, inner side; nat. size. 



13 a. „ ,, lb.; magn. 3 diam. : ^, section of jaw and premolar, j» 4. 



14. ,, „ Ib. ; ib. ; outer side, nat. size. 



14 a. „ „ lb.; ib. ; magn. 3 diam. 



15. „ „ Ib. ; teeth and impression of the fore part of a mandibular 



ramus ; nat. size. 

 15a. ,, „ lb.; magn. 3 diam.: 13(5, section of laniary incisor, magn. 



3 diam. 



16. ,, Falconeri. Right mandibular ramus, nat. size. 



16 a. „ „ Ib. ; magn. 3 diam. : b, section of laniary, magn. 3 diam. 



From the fresh-water mammaliferous marl-beds of the Middle Purbeck, Durdlestone 

 Bay, Dorsetshire. In the Collection of Samuel Husbands Beckles, Esq., F.R.S., St. 

 Leonard's-on-Sea. 



