106 PROCEEDINGS OF THE 



Chitonellus, sp. ind. (?) 



Fig. 6. — A square intermediate plate, with an oval, granular, 

 exposed area, and recurved apex. x 7. Collection. — J. Bennie. 

 Fig. 7. — Side view of the same plate. x 7. 



Chitonellus (?) patelliformis, Etheridge, jun. 



Fig. 8. — A conical anterior (?) plate, with the forwardly directed 

 grooves, and posterior radiating ridges. x 8. Collection. — J. 

 Bennie. 



Fig. 9. — Interior of another example, from the same collection. 



x8. 



Chiton, sp. ind. 



Fig. 10. — A small depressed plate with the remains of a peculiar 

 spike-like apophysis. x 6. Collection. — J. Armstrong. 



Chitonellus Bennieanus, Etheridge, jun. 



Fig. 11. — A characteristic example, obliquely oval, and with the 

 narrow inserted margin. x 7. Collection. — J. Bennie. 



Fig. 12. — Another example, with the crenulated ridges well 

 shewn. x 7. Collection. — J. Bennie. 



Fig. 13. — Interior of a third specimen. x 7. Collection. — J. 

 Bennie. 



Chitonellus (?) Kirkbyanus, Etheridge, jun. 



Fig. 14. — An anterior plate seen from above, with the large 

 marginal inserted area well shewn. x 8. Collection. — J. Bennie. 



Fig. 15. — Interior of another example. x 8. Collection. — J. 

 Bennie. 



Fig. 16. — Another anterior plate seen somewhat from behind, 

 with the posterior oblique area exposed. x 8, Collection. — J. 

 Bennie. 



Fig. 17. — Side view of the same. x 8. 



Fig. 18. — An intermediate plate, with the large inserted surface, 

 strong dorsal ridge, and oblique posterior area. x 4. Collection. — 

 J. Bennie. 



Fig. 19. — Side view of the same plate. x 4. 



Fig. 20. — A posterior plate, with its radiating ornamental ridges. 

 x 8. Collection. — J. Bennie. 



Fie. 21. — A side view shewing the concave dorsal line and high 

 posterior apex. x 8. Collection. — J. Bennie. 



