EXPLANATION OF PLATE II. 



Pago. 

 CnNfomj-PH ATTTRS SDBCORONATDS 237 



Fig. 1. View of a glabella and fixed cheeks, showing the general characters of the species. 

 Enlarged. 



k. 



©RfiiteKPf+AtUS (LoOANfitfceS^ GRANULOSUS » 214 



Figs. 2-3. Vertical and profile views of a glabella and fixed cheeks, showing the form and 

 surface-markings. Enlarged. 



GouijuefhaliteSt^teuockphalus} laticeps 221 



Fig. 4. View of the central parts of the head, showing the peculiar form of glabella and 

 extended frontal limb. 



5. A movable cheek, with a portion of the under surface of the front of the head. 



6. A part of a thoracic segment, associated with the other parts. 



f\ 7. View of an imperfect pygidium, found in the same rock. 



n^pPTrgPTTAriTg (LOGANFXLUS) NITIDUS 212 



Fig. 8. View of the central portion of a head of the species, showing the character of these 

 parts. 

 9-10. Two pygidia, showing some variations in the. details. 



Fig. 11. A glabella and fixed cheeks, enlarged. 



12. View of a cheek, enlarged to twice the natural size. 



13. View of a pygidium, enlarged to three times the natural size. 



CltEPtCEPItitI:tTS~(fjO eASIDLIiU0) Haguei 210 



Fig. 14. View of an entire individual, enlarged to twice the natural size, showing the form and 

 characters of the animal. 

 15. A single thoracic segment (third), enlarged to show more distinctly its structure. 



Fig. 16. View of the central part of a head, showing the characters of the species. The lateral 

 limbs have been broken off. 

 17. View of a movable cheek, enlarged to two diameters, showing the broad, flattened, 

 , margiual border. 



,■" 18. View of a much larger cheek, natural size (upper right-hand corner of plate). 



K' ' . ■ ' 



QRTl^PinFiPHAT.TTS (TiOGAKEIJ^US)-AnYTUS 219 



Fig. 19. View of the central parts of the head of a small individual, showing the angular 

 glabella and strong ocular ridges. 



20. View of a movable cheek, natural size, showing the striated surface. 



21. A pygidium from the same block as the other specimens. 



