Fic. 
Fia. 
by) 
Fig. 
FIG. 
Fic. 
Fic. 
Fic. 
560 
PLATE XLVII. 
1. CLADACANTHUS PARADOXUS, Agass., 5 ; : 
1 a. Transverse section of the anterior branch of the spine. 
1 b. Transverse section of the posterior branch of the spine. 
Carboniferous Limestone, Armagh, . Lex. coll. Enniskillen Collection. 
2. Anterior branch of CLADACANTHUS PARADOXUS, Agass., with well preserved distal 
termination, . z : . ‘ 0 
2 a. The same termination magnified. 
Carboniférous Limestone, Armagh, . Ez. coll, Enniskillen Collection. 
3. Posterior branch of CLADACANTHUS PARADOXUS, Agass., 
3 a. The same magnified. 
Carboniferous Limestone, Armagh, . Ex. coll. Enniskillen Collection. 
4, CLADACANTHUS PARADOXUS, Agass. Anterior termination, : 3 : 
Carboniferous Limestone, Armagh, . Ex. coll. Enniskillen Collection. 
5, CLADACANTHUS PARADOXUS, Agass. Anterior termination, : . 
5 a. Transverse section of same. 
Carboniferous Limestone, Armagh, . Ex. coll. Enniskillen Collection. 
6. CLADACANTHUS MAJoR, Davis. Anterior extremity of a large specimen, 
natural size, . : o 6 : : : Q 
Carboniferous Limestone, Armagh, . Ex. coll, Enniskillen Collection. 
7. CLADACANTHUS MAJOR, Davis. Posterior extremity, 0 : : : 
Carboniferous Limestone, Armagh, . Ex. coll. Enniskillen Collection. 
8. PHysonEemus ARcuATUS, M‘Coy, . ; 6 9 ‘ : 
8 a. Transverse section of same. 
Limestone, Armagh, : : Ex. coll. Enniskillen Collection. 
9. PHYSONEMUS HAMATUS, Agass.,  . 5 6 0 0 0 0 
Limestone, Armagh, 3 ; Ex. coll. Enniskillen Collection. 
10. PHYSONEMUS ATTENUATUS, Davis, . ; ; ; : 3 
Limestone, Armagh, 5 6 Ex. coll. Enniskillen Collection. 
11. PHysonEMUS HAMATUS, Agass., : ‘ : ; F : 
lla. Transverse section of spine near the basal extremity. 
11 4. Ditto, near the apex. 
Carboniferous Limestone, Armagh, . Ex. coll. Enniskillen Collection. 
12. PHYSONEMUS SUBTERES, Agass., . : F : 5 : é 
12 a. Magnified portion of surface. 
Carboniferous Limestone, Armagh, Lz. col/. Geological Society of London. 
Page 
365 
365 
365 
365 
365 
366 
366 - 
367 
370 
369 
370 
368 
