ElOMPIlAI.l.'S (ST1!APAI!0I,LUS) Utaiiensis '-i'^'J 



I'ij;. '^0. View of tbo upper surface of a large individual f oui Ogden Canon, showing tlie nbso- 

 lesoence of the carina ou the outer volution. 

 21. View of a smaller individual from Dry Ciiuon, as obtained by gutta-percha impression 



from the matrix. 

 2i. A similar small specimen from Logan Canon. The tignro is an enlarged view. 

 'j:i. A view of the under side of a large specimen from near Head and Benton'.-i mine, Utah. 



Kl'«MI'IlAI,US LAXUS '■idO 



Figs. 24-2.'). Profile and vertical views of a specimen from Dry Cauou, Utah. 



EuoMniALUs (Straparollus) Ophirensis 261 



Fig. 2(). Lateral view of the specimen, restored partly from the shell and partly from gutta- 

 percha iiupression iu the matrix. 

 27. View of the umbilicus. From Dry Canon, Opiiir, Utah. 



FjiOl'.TUS PEROCCIDENS 2(52 



Fig. 28. View of a glabella of the species, from Dry Ciinon. 

 2;t. View of the left uu)vable cheek. 



:!0. View of a pygidium of large size, from tho same locality. 



;il-:i2. View of a smaller specimen, natural size and enlarged, showing the ornamenta- 

 tion of the surface, from Ogden Cafion, Utah. 



rmir.Tis LoOanensis 2(i4 



Fig. '.'j'.\. View of the pygidium, enlarged to two diameters, showing the specillc features of this 

 part. 



