a 570 
PLATE LII. 
Fic. 1. Cocuiiopus contrortus, Agass., . 0 
», | a. Anterior view of the same. 
1 6. View of the under side. 
Mountain Limestone, Clifton, Bristol, . Fe coll. Kar] of Enniskillen. 
Fic. 2, Cocuiiopus contortus, Agass.,  . O 5 ; ; ; : 
Mountain Limestone, Clifton, Bristol, x coll. Geological Society, London. 
Fic. 3. Cocuiiopus conrortus, Agass., 
Mountain Limestone, Bristol, : Hz coll. Enniskillen Collection. 
Fic. 4. Posterior tooth of Cocuiiopus conTortus, Agass., 
», 4a. Section of the end of the tooth, highly curved. 
», 4b. Under side of the same tooth showing the enrolment. 
Mountain Limestone, Bristol. : Ez coll. Enniskillen Collection. 
Fic. 5. CocHLiopus contortus, Agass., 
,, Da. Small anterior tooth, showing the enrolment of the teeth. 
Mountain Limestone, Bristol, ; Ex coll. Enniskillen Collection. 
Fic. 6. Cocuiiopus contortus, Agass., : . 
Showing the teeth implanted on the cartilaginous mass of the jaw. 
Mt. Limestone, Clifton, Bristol, Hx. coll. Woodwardian Museum, Cambridge. 
Fics. 7, 8. DELTopus suBLavIs, Agass., . : : 
Teeth of the right and left ramus of the upper jaw. 
Mountain Limestone, Armagh, . Hx coll. Enniskillen Collection. 
Fic. 9. DELTopus suBLzvVIs, Agass., . : : 
Teeth of the lower jaw. 
», 9a. Smaller tooth of lower jaw detached, side view. 
Mountain Limestone, Armagh, ; Lex coll. Enniskillen Collection. 
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