214 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



9850. Cytherea texana Conrad. Holotype. 



Washita (Lower Cret.). Between El Paso and Frontera, 

 Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. II, 1857, 

 p. 153, pi. 6, fig. 2. 



136468. Cytherea ( Ventricola) ucuttana Dall. Holotype. 



Red Bluff (Eocene). Ucutta Creek, Clarke County, Ala- 

 bama. 



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

 p. 1276, pi. 57, fig. 14. 



109234. Cytherea willcoxi Dall. Holotype. 



Pliocene. Caloosahatchie River, near site of old Fort 

 Thompson, Florida. 



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

 p. 1276, pi. 53, fig. 3. 



35451. Cythereis alaris Ulrich and Bassler. Holotype. 



Chesapeake (Miocene). James River, Virginia. 



Ulrich and Bassler, Maryland Geol. Surv., Miocene, 1904, p. 123, 

 pi. 38, figs. 34-36. 



41801. Cythereis bassleri Ulrich. Cotypes. 



Eocene. Upper Marlboro, Maryland. 



Ulrich, Maryland Geol. Surv., Eocene, 1901, p. 120, pi. 16, figs. 

 19-21. 



35452. Cythereis cornuta americana Ulrich and Bassler. Cotypes. 



Calvert (Miocene). Plum Point, Maryland. 



Ulrich and Bassler, Maryland Geol. Surv., Miocene, 1904, p. 122, 

 pi. 37, figs. 29-33. 



41806. Cytherella marlboroensis Ulrich. Cotypes. 



Eocene. Upper Marlboro, Mandand. 



Ulrich, Maryland Geol. Surv., Eocene, 1901, p. 117, pi. 16, figs. 

 9-13- 



41809. Cytherella ovatiformis Ulrich. Cotypes. 



Chester (Miss.). Gra3^son Springs Station, Kentucky. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII, 1890, p. 17, figs. 

 3. 4a-c 



41S14. Cytherella ? rugosa Jones. Plesiotypes. 



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



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

 1894, p. 686, pi. 43, figs. 21-24. 



41815. Cytherella? rugosa arcta Ulrich. Holotype. 



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



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

 1S94, p. 6S6, pi. 43, fig. 25. 



