SYNOPSIS OF SPECIES FROM OTHER REPORTS. 461 



Prolocardium shumardi, M. & H., Pal. Up. Missouri, p. 98, figs, a and b. 



Southwest base of Black Hills, in Jurassic rocks. 



Myacites (Pletiromya) nebrascensis and M. (P.) subellvptieus M. & H. 



Are both cited as occurring at the southwest base of the Black Hills 

 (Paleontology of the Upper Missouri, pp. 100-101), but we have not been 

 able to identity either of them among the collections. 



Thracia ? arcuata M. & H., Pal. Up. Missouri, p. 102, PI. 4, fig. 8. 



From near the middle of the Jurassic, at the southwest base of the 

 Black Hills. 



Pholadomya humilis M. & H., Pal. Up. Missouri, p. 104, PI. 4, fig. 3. 



Lower part of Jurassic, southwest base of Black Hills. 

 Planorbix veturnus M. & H., Pal. Up. Missouri, p. 107, PI. 4, fig. 1. 



Southwest base of Black Hills. 

 Valvata f scabrida M. & H., Pal. Up. Missouri, p. 113, PI. 4, fig. 2. 



Southwest base of Black Hills, in Jurassic rocks. 

 Viviparus gilli Meek, Pal. Up. Missouri, p. 115, PI. 4, fig. 3. 



Southwest base of Black Hills. 



Lioplacodus veternus M. &. H., Pal. Up. Missouri, p. 116, with figs. 

 Southwest base of Black Hills and head of Wind River. 



Ammonites lienryi M. & H., Pal. Up. Missouri, p. 123, PI. 4, fig. 9. 

 Southwest base of Black Hills. 



Scrpula sp. ?, Pal. Up. Missouri, p. 128. 



Southwest base of Black Hills, lower part of Jurassic. 



CRETACEOUS SPECIES. 



Websteria cretacea Meek, Pal. U. S. Geol. Surv. Terr., p. 3, PI. 28, fig. 3. 



A small coralline-like body from the Fox Hills Group of the south fork 

 of the Cheyenne River. 



