318 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



28942. Homomya gallatinensis Stanton. Holotype and paratypes. 

 Jurassic. Yellowstone National Park. 



Stanton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 625, 

 pi. 74, figs. 6, 7. 



43304. Homotrypa arbuscula Ulrich. Cotypes and figured sections. 

 433°5- Stones River (Ord.). Dixon, Illinois; High Bridge, Ken- 



tucky. 



Ulrich, Geol. Surv. 111., VIII, 1890, p. 409, pi. 33, figs. 3, 3c. 



41762. Homotrypa austini Bassler. Cotypes and figured sections. 

 Richmond (Ord.). Dutch Creek, four and one-half miles 

 west of Wilmington, Ohio. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 584, pi. 24, 

 figs- 5-9- 



4357S. Homotrypa callosa Ulrich. Cotypes and figured sections. 



43579- Trenton (Ord.). Near Burgin, Kentucky, and Cannon 



Falls, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 243, pi. 20, figs. 15-21. 



41744. Homotrypa cincinnatiensis Bassler. Cotypes and figured 



sections. 

 Lorraine (Ord.). Cincinnati, Ohio. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 576, pi. 21, 

 figs. 4-10. 



41755. Homotrypa communis Bassler. Cotypes and figured 



sections. 

 Richmond (Ord.). Oregonia, Ohio. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 581, pi. 23, 

 figs. 1-4. 



41729. Homotrypa curvata Ulrich. Cotypes and figured sections. 

 Lorraine (Ord.). Covington, Kentucky. 



I'lrich, Journ. Cincinnati Soc. Nat. Hist., V, 1882, p. 242, pi. 10, 

 figs. 7, 7d. 



41735. Homotrypa curvata praecipta Bassler. Holotype. 



Utica (Ord.). West Covington, Kentucky. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 575, pi. 23, fig. 15. 



41758. Homotrypa cylindrica Bassler. Cotypes and figured 



sections. 

 Richmond (Ord.). Richmond, Indiana. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 585, pi. 22, 

 figs. S-13. 



41749. Homotrypa dawsoni ( Nicholson). Plesiotypes and figured 



sections. 

 Richmond (Ord.). Waynesville, Ohio. 



Bassler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 581, pi. 25, 

 figs. 9-10. 



