16 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



2179. Pimelodus antiquus L,eidy. Type. 



Pectoral spine with dentary bones. Tertiary (Eocene). 

 Junction Big Sandy and Green rivers, Wyoming. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1873, p. 99; Rept. U. S. Geol. 

 Surv. Terr., I, 1873, p. 193, pi. 32, figs. 44-46. 



4399. Platysomus lacovianus Cope. Type. 



Impression of fish in nodule. Coal Measures. Mazon 

 Creek near Morris, Grundy County, Illinois. 

 Cope, Proc. U. S. Nat. Mus., XIV, 1891, p. 462, pi. 31, fig. 11. 



4996. Plioplarchus septemspinosus Cope. Type. 



Skeleton on slab. Tertiary. Van Horn's ranch, Grant 

 County, Oregon. 



Cope, Amer. Nat., XXIII, 1889, p. 625. 



4236. Plioplarchus sexspinosus Cope. Type. 



Skeleton without head on slab. Tertiary. Near Sentinel 

 Butte, Billings County, North Dakota. 



Cope, Amer. Journ. Sci. (3), XXV, 1883, p. 416; Rept. U. S. Geol. 

 Surv. Terr., Ill, 1884, p. 729. 



4695. Plioplarchus whitei Cope. Type. 



Complete skeleton and impression on slab. Upper Creta- 

 ceous? Pilot Knob, South Dakota. 



Cope, Amer. Journ. Sci. (3), XXV, 1883, p. 414; Rept. U. S. Geol. 

 Surv. Terr., Ill, 1884, p. 728, pi. 24g, fig. 1. 



4041. Priscacara clivosa Cope. Type. 



Skeleton on slab. Green River (Eocene). Twin Creek, 

 Wyoming. 



Cope, Bull. U. S. Geol. and Geogr. Surv. Terr., IV, 1878, p. 76; 

 Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 96, pi. 13, fig. 3. 



4042. Priscacara cypha Cope. Type. 



Skeleton on slab. Green River (Eocene). Twin Creek, 

 Wyoming. 



Cope, Bull. U. S. Geol. and Geogr. Surv. Terr., Ill, 1877, p. 817; 

 Rept. U. S. Geol. Surv-. Terr., Ill, 1884, p. 94, pi. 13, fig. 2. 



4043. Priscacara Hops Cope. Type. 



Skeleton on slab. Green River (Eocene). Twin Creek, 

 Wyoming. 



Cope, Bull. U. S. Geol. and Geogr. Surv. Terr., Ill, 1877, p. 818; 

 Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 97, pi. 14, fig. 2. 



4044. Priscacara Hops Cope. Paratype. 



Skeleton on slab. Green River (Eocene). Twin Creek, 

 Wyoming. 



Cope, Bull. U. S. Geol. and Geogr. Surv. Terr., Ill, 1877, p. 818; 

 Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 97, pi. 14, fig. 3. 



4039. Priscacara oxyprion Cope. Type. 



Skeleton on slab. Green River (Eocene). Wyoming. 



Cope, Bull. U. S. Geol. and Geogr. Surv. Terr., IV, 1878, p. 74; 

 Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 94, pi. 14, fig. 5 (as 

 P. serrata on plate). 



