PLATE VIII. 
Pig- Page 
1, 2. Coccosteus clisjectus, sp. nov. ; associated median ventral 
plates, external aspect, the anterior extremity of the 
second inadvertently turned downwards.—Upper Old 
died 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 anglicci, Traq.; impression of dorsal cranial 
shield, wanting rostral plate.—Lower Old Red 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 Red Sandstone ; 
Heightington. r. Rostral plate. Other letters as above. 
[37388.] 297 
7. Ditto; impression of external tubercular ornament of 
undetermined plate.—Ibid. [38032 h.] 298 
8. Ditto; (?) imperfect ventro-lateral plate.—Ibid. 
[37388 b.] 298 
9. Undetermined ridge-plate, outer aspect.—Lower Old Red 
Sandstone; Cradley. [P. 5274.] 298 
