218 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87- 



Disciiia keokuk Gurley=Orbiculoidea keokuk. 



Discina lodensis Ilall^Orbiculoideii lodieiisis. 



Disciua iiiagiiilica neriick = Orl)icu]()idea inagnitioa. 



Discina mauhattensis Meekaiid Haydeu=Orbiculoidea manbattauensis. 



Disciua marginalis Whitfield = Orbiculoidea marginal is. 



Discina media lJall=Orbiculoidea lodiensis media. 



Discina meekana Wliitfleld=()rbiculoidea missouriensis. 



Disciua microscopica Sbumard=Acrotreta microscopica. 



Discina miuuta lIall = Oibiculoidea minnta. 



Disciua missouriensis Shumard=Orbicul()idea missouriensis. 



Discina munda Miller and Gurley=Orbiculoidea munda. 



Discina neglecta Hall=Orbiculoidea neglecta. 



Discina newberr^-i Hall = Lingulodiscina newberryi. 



Discina uitida Meek and Wortben = Orbicnloidca missouriensis. 



Discina uitida = Orbiculoidea nitida. 



Disciua patellaris Wiucliell=Orbi(;uloidea patellaris. 



Discina i)elopea Billings=Scbizotreta pelopea. 



Discina(?) pileolus Whiteaves. ? Lower Cretaceous. 



Discina pileolus Whiteaves, Cont. Canadian Pal., 1, 1889, p. 159, pi. 21, tig. 3. 

 Loc. Rink Rapid.s on Lewis River, British America. 



Ohs. "Professor Hyatt tliinks that the fossils from this locality are .Jurassic'' 

 (Stanton). 



Discina pleurites Meek=Lingulodiscina pleurites. 

 Discina randalli Hall = Orbiculoidea randalli. 

 Discina saffordi Wiucbell=Orbiculoidea saffordi. 

 Discina sampsoni ]\Iiller=Orbiculoidea sampsoni. 



Discina(?) semipolita Whiteaves. Cretaceous. 



Discina seuiipolita Whiteaves, Mesozoic Fossils, I, CtcoI. Survey Canada, 1884, 



p. 252, pi. 33, fig. 9. 

 Loc. Queen Charlotte Island. 



Discina seneca Hall=Orbiculoidea sencca. 



Disciua solitaria Eingueberg = Schizotreta teuuilamellata. 



?Discina sublamellosa T-^lrich. Lorraine (Ord.). 



Discina sul)lainellosa Ulrich, .Jour. Cincinnati, Soc. Nat. Hist., I, 1878, p. 97, pi. 4, 



fig. 11.— Miller, N. American Geoi. Pal., 1889, p. 344. 

 Loc. Covington, Kentucky. 

 Ohs. Probably not a brachlopod. 



Discina subtrigonalis McChesuey = Orbiculoidea subtrigonalis. 

 Discina teunihimellata var. subplana Hall = Orbiculoidea subplana. 

 Discina tenuiliueata Meek and Hayden=Orbiculoidea tenuiliueata. 

 Discina tenuistriata TTlrich=Orbicnloidoa tonuistriata. 

 Disciua trigonalis McChesney = Orbi(;uloidea subtrigonalis. 

 Discina truncata IIall=Schizobolus conceutricus. 

 Disciua truncata l^mmous^nrbiculoidea lamellosa. 

 Discina tuHia Hall=Orbiculoidea tiillia. 

 Discina utabensis Meek=Orbiculoidea utaheusis. 



