86 NON-MARINE FOSSIL MOLLUSCA. 



PLATE 3. JURASSIC AND TRIASSIC t 



Unio stewardi White. (Page 20.) 



Fig. 1. Outline of a left valve restored from fragments, natural size. 



Uxio nucaLis Meek & Hay den. (Page 20.) 



Fig. 2. Lateral view of a left valve slightly restored from a specimen a little crushed. 

 Fig. 3. Dorsal view of the same; the right valve restored in symmetry with the left. 

 Fig. 4. Dorsal view of one of the originally figured types, slightly restored, the 

 specimen being a little crushed ; all natural size. 



Unio cristonensis Meek. (Page 19.) 



Fig. 5. Right side view of Mr. Meek's most perfect type, natural size. 



Planorbis veternus M. & H. (Page 40.) 



Fig. 6. Lateral view, natural size, and the same enlarged : also, a transverse section 

 showing the number and shape of volutions. After Meek. 



Valvata scabrida M. & H. (Page 64.) 



Fig. 7. Copy of original figure of Meek & Hayden. 



Viviparus gillianus M. & H. (Page GO. ) 



Fig. 8. Two views of the type specimen, natural size. After Meek & Hayden. 



Lioplacodes veternus M. & H. (Page 60.) 



Fig. 9. Two views of the type specimen, natural siz*e. After Meek &. Hayden. 



Neritina nebrascensis M. & H. (Page 51.) 



Fig. 10. Two views of the type specimen, natural size. After Meek & Hayden. 

 Fig. 11. Enlarged view of a portion of the surface showing the pattern of the color 

 markings. 



