Page. 

 Fig. 1. CucuLLiEA Haguei 234 



I. Side view, magnified. ' 



la. A line showing the natural size of same. 



I 6. Au outline anterior view, to show the convexity of the shell, natural size. 



Fig.2. Lima (Limatdla) ERECTA. A single valve, natural size 130 



Fig. 3. MYOPHORIA LINEATA ? , J33 



3. A specimen with the beak broken away, natural size. 



3 a. The same, magnified. 



Fig. 4. VOLSELLA SCALPRUM, VUr. ISONEMA , 132 



4. Side view, natural size. 



4 a. Au outline to show convexity. 



Fig. .5. An undetermined bivalve (internal cast). 



Fig. 6. Myacites (Fleukomya) subcompkessa 13G 



6. Side view. 



6 a. An outline to show convexity. 



Fig. 7. Belemnites Nevadensis , 138 



7. An imperfect specimen, with the lower extremity broken away. It also has a part 



of one side broken out, so as to show the cast of the internal cavity for the recep- 

 tion of the x)hragmocone. 



7 a. Is a section across the upper end, showing the form of the upper part of the internal 



cavity. 



7 b. An outline to show the compressed form of the guard near its lower end. 



Fig. 8. Phragmocone of apparently a large Belemnite 131) 



8 ft. Another view of same, with a part of one side removed, so as to show the deeply 



arcuate septa. 

 8 1). Another fragment, showing the marginal siphuncle. 



Fig. 9. Pinna KiNGii 131 



9. A side view of an imperfect cast, retainiug portions of the shell. 



9 a. Dorsal view of same. 



Fig. 10. Myacites iNCONSPiCuus. A side view, magnified two diameters 137 



, Fig. 11. Myacites (Pi.eukomya) Weberensis 137 



II. Side view of a specimen with the posterior end broken away. 



II a. Anterior view of same. 



Fig. 12. Spiriferina pulchra 85 



12. A side view of a specimen, with the extremities and beak broken away. 

 12 a. A cardinal view of same, showing area and foramen. 



12 b. 'An anterior view of same. 



12 c. A dorsal view of another specimen, with imperfect extremities. 



12 d. A nearly complete ventral valve, as seen embedded in the matrix. 



Fig. 13. AVICULOPECTEN OCCIDANE0S 96 



13. A specimen of left valve, with the anterior ear broken away,, natural size. 



13 a. Another specimen of left valve, figure enlarged two diameters. 



136. Another specimen, apparently of left valve, with posterior ear more acute. 



