TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 519 



3625. Platyschisma oculus Morris. Plesiotypes. 



Carboniferous. Harpers Hill on the Hunter, New South 

 Wales, Australia. 



Dana, Wilkes U. S. Expl. Exped., X, 1849, P- 7°7> Atlas, pi. 10, 

 fig. I. 



Platystoma minutum Girty. See Platyostoma minutum. 



41 167. Platystrophia acutilirata (Conrad). Plesiotypes. 



Richmond (Ord. ). Waynesville, Ohio. 



Cummings, Amer. Journ. Sci. (4), XV, 1903, p. 48, fig. 25. 



26887. Platystrophia biforata (Schlotheim). Plesiotype. 



Ordovician. Pulkowa, Russia. 



Cummings, Amer. Journ. Sci. (4), XV, 1903, p. 15, figs. 6a-6f. 



34139. Platystrophia biforata (Schlotheim). Plesiotype. 



Clinton (Sil.). Gassport, New York. 



Cummings, Amer. Journ. Sci. (4), XV, 1903, p. 42, figs. 23a-23f. 



34138. Platystrophia dentata (Pander). Plesiotype. 



Ordovician. Pulkowa, Russia. 



Cummings, Amer. Journ. Sci. (4), XV, 1903, p. 10, fig. 4 B. 



35408. Platystrophia lynx (Von Buch). Plesiotype. 



Lorraine (Ord.). Cincinnati, Ohio. 



Hayes and Ulrich, U. S. Geol. Surv., Folio 95, 1903, illustration 

 sheet, figs. 21, 22. 



158057. Platytrochus claibornensis de Gregorio. Plesiotypes. 



158065. Claibornian (Eocene). Claiborne, Alabama. 



158066. Vaughan, Mon. XXXIX, U. S. Geol. Surv., 1900, p. 77, pi. 5, 



figs. 10-12. 



158040. Platytrochus goldfussi (Lea). Plesiotypes. 



Claibornian (Eocene). Claiborne, Alabama. 



Vaughan, Mon. XXXIX, U. S. Geol. Surv., 1900, p. 76, pi. 5, 

 fi gs. 2-5, 7. 



158012 Platytrochus stokesi (Lea). Plesiotypes. 



to Claibornian (Eocene). Claiborne, Alabama. 



158015. Vaughan, Mon. XXXIX, U. S. Geol. Surv., 1900, p. 74, pi. 4, 



figs. 20-24; pi. 5, fig- 8. 



25596. Plecia pealei Scudder. Cotypes. 



Older Tertiary. Twin Creek, Wyoming. 



Scudder, Thirteenth Ann. Rept. U. S, Geol. Surv. Terrs., 1890, 

 p. 585, pi. 4, figs. 10, 12. 



46278. Plethocardia suberecta Ulrich. Holotype. 



Trenton (Ord.). Near Cannon Falls, Minnesota. 



Ulrich, Nineteenth Ann. Rept. Geol. and Nat. Hist. Surv. Minn., 

 1892, p. 245, fig. 29; Geol. and Nat. Hist. Surv. Minn., Final 

 Rept., Ill, Pt. II, 1894, p. 577, pi. 40, figs. 25-27. 



