510 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



43491. Pinnatopora youngi Ulrich. Cotype. 



Waverly (Miss.). Richfield, Ohio. 



Ulrich, Bull. Denison Univ., IV, 1888, p. 78, pi. 14, figs. 6, 6a. 



43425. Pinnatopora youngi Ulrich. Plesiotype. 



Keokuk (Miss.). Kings Mountain, Kentucky. 

 Ulrich, Geol. Surv. 111., VIII, 1890, p. 615, pi. 66, fig. 3. 



1 13224. Pisania (Celatoconus ) nux Dall. Holotype. 



Miocene. Cape Fear River, North Carolina. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. II, 1892, 

 p. 235, pi. 13, fig. 6. 



8208. Pisidium saginatum White. Cot}^pes. 



Laramie (Cret.). Near Evanston, Wyoming. 



White, Powell's Rept. Geol. Uinta Mountains, 1876, p. 128; Third 

 Ann. Rept. U. S. Geol. Surv., 1883, p. 440, pi. 20, figs. 14, 15. 



136750. Pitaria ( Lamelliconcha ) calcanea Dall. Holotype. 



Oligocene. Vicksburg, Mississippi. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1270, pi. 55, fig. 19. 



115163. Pitaria (Lamelliconcha) filosina Dall. Holotype. 



Upper Miocene. Natural Well, Duplin County, North 

 Carolina. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1270, pi. 57, fig. 1. 



1 14753. Pitaria (Hyphantosoma) floridana Dall. Holotype. 



Chipola (Oligocene). Alum Bluff, Apalachicola River, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1267, pi. 54, fig. 10. 



135252. Pitaria (Lamelliconcha) hillii Dall. Holotype. 



Oligocene. Near Gatun, Panama Canal, Panama. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1268, pi. 54, fig. 7. 



109232. Pitaria | Hyphantosoma) opisthogrammata Dall. 



Holotype. 

 Pliocene. Near Charlotte Harbor, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1267, pi. 54, fig. 8. 



29414. Placenticeras guadalupe (Roemer). Plesiotypes. 



San Carlos (Upper Cret.). San Carlos, Presidio Co., Texas. 



Hyatt, Mon. XLIV, U. S. Geol. Surv., 1903, p. 199. 



9735. Placenticeras intercalare Meek. Plesiotypes. 



1897S. Montana (Upper Cret.). Harper, Laramie Plains, Wyo- 



2941 1. ming; Ponil Canyon, New Mexico; Upper Missouri. 



Hyatt. Mon. XLIV, U. S. Geol. Surv.. 1903, pp. 207-211, pi. 36, 

 fig. 5; pi. 37, figs. 1-4; pi. 38, fig. 1. 



