150 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52 



S1274. PLATYCERAS MILLERI Nettelroth. Cotypes. 

 Sellersburg (Devonian), Falls of the Ohio. 



Kentucky Fossil Shells, 1889, p. 165, pi. xxv, fig. i. 



51267. PLATYCERAS MULTISPINOSUM Meek. Plesiotype. 

 Jeffersonville (Devonian), Louisville, Kentucky. 

 Kentucky Fossil Shells, 1889, p. 166, pi. xxv, fig. 4. 



51273. PLATYCERAS RICTUM Hall. Plesiotypes. 



Jeffersonville (Devonian), Falls of the Ohio. 

 Kentucky Fossil Shells, 1889, p. 166. 



S1370. PLATYCERAS SYMMETRICUM Hall. Plesiotype. 

 Jeffersonville (Devonian), Falls of the Ohio. 



Kentucky Fossil Shells, 1889, p. 167, pi. xxiii, fig. 10. 



51266. PLATYCERAS THETIS Hall. Plesiotypes. 



Sellersburg (Devonian), Falls of the Ohio. 

 Kentucky Fossil Shells, 1889, p. 168. 



51271. PLATYCERAS VENTRICOSUM Conrad. Plesiotype. 

 Jeffersonville (Devonian), Louisville, Kentucky. 

 Kentucky Fossil Shells, 1889, p. 168, pi. xxv, fig. 10. 



51245. PLATYOSTOMA LINEATA Conrad. Plesiotypes. 



Sellersburg (Devonian), Falls of the Ohio. 



Kentucky Fossil Shells, 1889, p. 183, pi. xix, figs. 5-8; pi. xxi, 

 figs. 7. 8. 



51248. PLATYOSTOMA LINEATA CALLOSA Hall. Plesiotypes. 



Sellersburg (Devonian), Falls of the Ohio. 



Kentucky Fossil Shells, 1889, p. 184, pi. xxl fig. 14; pi. xxii, 

 figs. ID, II ; pi. xxv, figs. 5, 6, 9. 



51246. PLATYOSTOMA TURBINATA Hall. Plesiotype. 



Sellersburg (Devonian), Louisville, Kentucky. 



Kentucky Fossil Shells, 1889, p. 184, pi. xxi, figs. 7, 8. 



51249. PLEUROTOMARIA ARABELLA Nettelroth. Holotype. 



Jeffersonville (Devonian), Clark County, Indiana. 



Kentucky Fossil Shells, 1889, p. 171, pi. xxvi, fig. 12. 



51250. PLEUROTOMARIA LUCINA Hall. Plesiotype. 



Jeffersonville (Devonian), Falls of the Ohio. 



Kentucky Fossil Shells, 1889, p. 172. 



51251. PLEUROTOMARIA PROCTERI Nettelroth. Cotypes. 



51252. Jeffersonville (Devonian), Clark County, Indiana, and Lou- 



isville, Kentucky. 

 Kentucky Fossil Shells, 1889, p. 173, pi. xxi, figs. 9. 10, 13. 



51253. PLEUROTOMARIA SULCOMARGINATA Conrad. Plesio- 



types. 



Jeffersonville (Devonian), Clark County, Indiana. 



Kentucky Fossil Shells, 1889, p. 174. p!. xxi, figs. 11, 12. 



