318 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



28942. Homomya gallatinensis Stanton. Holotype and paratypes. 

 Jurassic. Yellowstone National Park. 



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

 pi. 74. figs. 6. 7. 



43304. Homotrypa arbuscula Ulricli. Cotypes and figured sections. 

 43305- 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 milts 

 west of Wilmington, Ohio. 



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

 figs- 5-9- 



43578. Homotrypa callosa Ulrich. Cotypes and figured sections. 



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



Falls, Minnesota. 



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



1893, p. 243, pi. 2u, figs. 15-21. 



41744. Homotrypa cincinnatiensis Bas.sler. Cotypes and figured 



.sections. 

 I^orraine (Ord.). Cincinnati, Ohio. 



Bas.sler, Proc. U. vS. Nat. Mus., XXVI, 1903, p. 576, pi. 21, 

 figs. 4-10. 



41755. Homotrypa communis Ba.s.sler. Cotypes and figured 



.sections. 

 Richmond (Ord.). Oregonia, Ohio. 



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

 figs. 1-4. 



41729. Homotrypa curvata Ulrich. ■ Cotypes and figured sections. 

 Lorraine ( Ord. ). Covington, Kentucky. 



Ulrich, Journ. Cincinnati .Soc. Nat. Hist., V, 1882, ]). 242, pi. lu, 

 figs. 7, 7(1. 



41735. Homotrypa curvata praecipta Bassler. Holotype. 



Utica (Ord. ). We.st 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. 



Ba.ssler, Proc. U. S. Nat. Mus., XX\'I, 1903, p. 585, pi. 22, 

 figs. 8-13. 



41749. Homotrypa dawsoni (Nicholson). Plesiotypcs and figured 



sections. 

 Richmond (Ord. ). Waynesville, Ohio. 



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

 figs. 9-10. 



