﻿PLATE VIII. 



Fig. Page 



1, 2. Coccosteus disjectus, sp. nov. : associated median ventral 

 plates, external aspect, the anterior extremity of the 

 second inadvertently turned downwards. — Upper Old 

 Eed Sandstone ; Kiltorcan. [43039.] 292 



3. Ditto; right posterior ventro-lateral plate, visceral aspect. — 



Ibid. [41901.] 292 



4. Ditto ; portion of superficial ornamentation, twice nat. 



size.— Ibid. [43039 a.] 292 



5. Phlyctcenaspis anglica, Traq. ; impression of dorsal cranial 



shield, wanting rostral plate. — Lower Old Eed Sand- 

 stone; Cradley. c. Central, m.o. Median occipital. 

 p.o. Preorbital. [42147.] 297 



6. Ditto ; dorsal cranial shield, partly visceral aspect, partly 



impression of outer surface. — Lower Old Eed Sandstone ; 

 Heightington. r. Eostral plate. Other letters as above. 



[37388.] 297 



7. Ditto ; impression of external tubercular ornament of 



undetermined plate.— Ibid. [38032 b.] 298 



8. Ditto ; (?) imperfect ventro-lateral plate. — Ibid. 



[37388 b.] 298 



9. Undetermined ridge-plate, outer aspect. — Lower Old Eed 



Sandstone; Cradley. [P. 5274.] 298 



