PLATE Xril. 



Spiriferina borealis (page 128). 

 Figure 1. Dorsal view of tlie type of tlie species- 



Terebratula Liardbnsis (page 130.) 



Figure 2. Dorsal view of one of the most perfect specimens of the narrowly 



ovate and most usual form of this species- 

 Figure 2a. Profile view of the same specimen, in outline only. 

 Figure 2h. Front view of the same, also in outline only. 

 Figure 2c. Dorsal view of a broad and nearly circular form of the species. 



MoNOTis suEoiRouLARis (page 1.31). 



Figure 3. Right valve of an obliquely subovate specimen of this species, from 



Fossil Point on the Peace Eiver. 

 Figure 3a. Right valve of another specimen, of more nearly circular outline, 



from the same locality. 



MoNOTis ovALis (page 132). 

 Figure 4. Left valve of the type of this species. 



Halobia occidbntalis (page 134). 



Figure 5. Left valve of the type specimen. 



Figure 6. Small piece of rock, partly covered by the basal portion of a left 

 valve and a. nearly entire right valve of a shell which is some- 

 what doubtfully referred to this species. 



Trigonodus (?) PR0DUCTU8 (page 135). 



Figure 7. Right valve of a specimen of this species, 

 Figure la. Left valve of another specimen, from the same locality. 

 Figure 1h. Dorsal view of the closed valves of a third specimen, in outline 

 only. 



All the figures twice the natural size. 



Margarita Triassica (page 136). 



Figure 8. Dorsal view of one of the most perfect specimens collected. 

 Figure 8a. Basal view of the same. 



Both figures three times the natural size. 



