Plate I 
Schuchertella girtyi n. sp. 
Figures 1 a, b, c. Pedicle, side, and cardinal views of the type specimen. Section 2, locality 38. 
(Page 34.) 
Cyrtia siandlyensis n. sp. 
Figures 2 a, b, c, d, e. Cardinal, pedicle, brachial, side, and anterior views of the type speci- 
men. Section 2, locality 38. (Page 62.) 
Figure 3. Brachial view with the foramen of the pedicle valve projecting above it. Section 
2, locality 38. (Page 62.) 
Figures 4 a, b. Side and pedicle views of another specimen. Section 2, locality 38. (Page 62.) 
Figure 5. Side view of a large specimen. Section 2, locality 38. (Page 62.) 
Proiuctus mmneimnkensis n. sp. 
Figures 6 a, b, c. Ventral, lateral, and umbonal views of the type specimen. Section 2, 
locality 38. (Page 40.) 
Figure 7. Posterior view of another pedicle valve, X 2£. Section 2, locality 38. (Page 40.) 
Spvrijer centronalu# minnewankensis n. var. 
Figures 8 a, b. Pedicle and umbonal views of the type specimen. Section 2, locality 25. 
(Page 52.) 
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