PLATE 77. 
Fig. 1-8. Liciias bigsbvi. 
1. Profile view of an imperfect head. The 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. 
Fig. 9-11. Liciias pustulosus. 
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. 
