PLATE 77. 



p*g« 



Fig. 1-8. LiCHAs BiGSBri. 364 



1. Profile view of an imperfect liead. Tlie median lobe of the glabella is not represented as 



sufficiently prominent. 



2. View of the upper side. 



3. Anterior view, showing the elevation of the median lobe and the frontal limb. The surface 



is represented as too coarsely pustulose. 



4. View of the upper side of the head of another individual. The median lobe of the glabella 



is not sufficiently narrowed in its posterior part. The surface markings in this figure 

 present the prevailing feature. 



5. The median and anterior lateral lobes of the glabella of a larger specimen, which is some- 



what depressed. 



6. Profile view of the same. 



7. The hypostoma. 



8. A part of the pygidium of this species. 



Pig. 9 - 11. LiCHAS PUSTULOSES. 366 



9. A portion of the head, showing the median and anterior lateral lobes of the glabella. 



10. Lateral view of the same. 



11. A fragment of the pygidium, showing a part of the axis and the ribs on one side. 



