PLATE 78, 
Page 
Fig. 1-7. Liciias pustulosus. 366 
1. A part of the head, showing the median lobe and anterior lateral lobes of the glabella, 
the occipital furrow and annulation. The specimen has been crushed, and some parts of 
it are incorrectly represented. 
2 & 3. Fragments showing the lower side of what appear to have been the movable cheeks. 
4. The pygidium, which is nearly entire in all its parts, except the protuberance and the 
spines at the extremity of the axis, which are broken off. The short spines towards the 
posterior extremity are, in this specimen, a little on one side of the centre. 
5. A fragment of the pygidium, where the posterior part of the axis is extremely prominent, 
and the bases of the principal and smaller lateral spines arc preserved. The continuation 
of the ribs is preserved only in outline. 
6. The underside of a part of the pygidium, showing the thickened border, the sharp eleva¬ 
tions separating the ribs, and those marking the furrow upon them. The round pits indicate 
the bases of the large tubular spines, which ornament the surface with some regularity. 
7. The lower side of a pygidium, showing the broad thickened border and the deep cavity 
made by the protuberance at the extremity of the axis. The bifurcations of the central 
lobe are more diverging than usual, but this feature is accidental in the specimen. 
