PLATE 76. 



Pag» 



Fig. 1-8. Dalmania nasutus. 362 



1. The head of a specimen, natural size. The frontal process is broken off; and the continua- 



tion, as represented, is drawn from fig. 2. 



2. An imperfect head preserving the glabella (which is distorted by pressure), the bases of 



the eyes, and the frontal process. The extremities of the bifurcation are broken off, and 

 their true extent is not known. 



3 . The underside of the test of the head, preserving the anterior border and the frontal process. 



4. The eye and part of the cheek, from another specimen. 



5. Profile view of the same, with the posterior portion extended. 



6. A portion of the eye-surface enlarged, showing the lenses and the rounded grains between. 



7. The pygidium, showing the elongate caudal spine. 



8. Profile view of the same. 



