SYNOPSIS OF Sl'EClKS FllOiM OTIIKK KETOliTS. 4(3:3 



Tcllina (Peroiiaa ?) scitulu M. & II. (^ Tcllina scitula M. & II.), Tal. U. S. Oeol. Surv. 

 Terr., p. 197, PI. 30, fig. 1. 



South branch of tlie Cheyenne River, Fox Hills beds. 



AcUeon suhellipticus M. & II., Pal. U. S. Gcol. Surv. Terr., p. 280, PI. 19, lig. lG,^Soli- 

 dula {Act(Conina ?) subelliptica JM. & II. 



Crow Creek, near Black Hills, in the Fort Pierre Grouj) 



Cinulia (Oligopti/cltia) concinna (H. & M., sp.) Meek, Pal. U. S. tiet)l. Surv. Terr., p. 

 2Si, ^=^Actwonconcinnns H. &M.; Avellana concinna I\Ieek; Avellana subglobosa 

 M. &H. 



Sage Creek, Black Hills, Fort Pierr^ Group. 



Acmcea occidentalis (H. & M., sp.) Meek, Pal. U. S. Geol. Surv. Terr., p. 295, = C(q)ulns 

 occidentalis H. & M. ; Tectura ? occidentalis M. & U. 



Sage Creek, Black Hills, Fort Pierr^ Group. 



MargariteUa flexistriata (E. & S., sp.) Meek, Pal. U. S. Geol. Surv. Terr., p. 302, PI. 19, 

 fig. }!, = Solarium Jlexistriatum E. & S.; Margaritella flexistriata M. & II. 



Sage Creek, Black Hills, Fort Pierre Group. 



Clofsteriscus tenuilineatus (H. & M., sp.) Meek, Pal. U. S. Geol. Surv. Terr., p. 308, PI. 

 19, fig. 10, = Fusits ? tenuilineatus H. & M. and Tritonifusus ? tenuilineatus 

 Meek. 



Sage Creek, Black Hills, Fort Pierrd Group. 



Gyrodes conradi Meek, Pal. U. S. Geol. Surv. Terr., p. 310, figs. 33-36. 

 Cheyenne River, Fort Pierrd Group. 



Odontobasis constricta (H. & M., sp.) Meek, Pal. U. S. Geol. Surv. Terr., pp. 352, 353, 

 figs. 41, 4:2, ^:Fusus constrictus H. & M. and Buceinum f constrictum M. & H. 



Sage Creek, Black Hills, Fort Pierrd Group. 



Odontobasis ventriosa Meek, Pal. U. S. Geol. Surv. Terr., p. 354, flg. 43, PI. 19, fig. 1. 



Near mouth of Sage Creek, Black Hills, Fort Pierre Group. 

 Baculites compressus Say, Am. Jour. Sol. and Arts, vol. ii, p. 41, 1821. 



Abundant at Sage Creek and Great Bend of the Missouri. 



