40 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



20II0. Ammonites i Amaltheus ) whiteavesii White. Cotypes. 



Jurassic. Wrangell Bay, Alaska. 



White, Bull. No. 51, U. S. Geol. Surv., 1889, p. 69, pi. 13, figs. 

 ■-5- 



28949. Amnicola? cretacea Stanton. Cotypes. 



Dakota? (Cret. ). Fawn Creek, Yellowstone National 

 Park. 



Stanton, Mon. XXXII, Pt. II. U. vS. Geol.vSurv., 1899, p. 6vv pi- 



75, fig- 8. 



1 1 3565. Amnicola floridana convexa Pilsbry. Plesiotypes. 



Pliocene. Caloosahatchie River, near Fort Thompson, 

 Florida. 



Pilsbry, Trans. Wagner Free Inst. vSci. Phila., Ill, Pt. II, 1892, 

 P- 338. 



1 13567. Amnicola omphalotropis Pilsbry. Holotype. 



Pliocene. Caloosahatchie Ri\-er, near Fort Thompson, 

 Florida. 

 Pilsbry, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. 11, 1892, 

 P- 339' Pl- 21, fig. 13- 



1 1 1588. Amphidesma burnsi Whitfield. , Cotype. 



Miocene. Shiloh, New Jersey. 



Whitfield, Mon. XXIV, U. S. Geol. vSnrv., 1894, p. 79, pi. 14, figs. 

 16-18. 



= Semele burnsi. 

 See Abra sequalis. 



158260. Amphihelia natchitochensis \'anghan. Cotypes. 



IvOwer Claiborne. Natchitoches, Louisiana. 



Vaughan, Mon. XXXIX, U. vS. Geol. vSurv., 1900, p. 124, pi. 12, 

 figs. 12-18. 



24645. Amphion nevadensis Walcott. Cotypes. 



lTpi)er Pogonip (Ord.). Bellevue Peak, Eiu'eka District, 

 Nevada. 

 Walcott, Mon. VIII, IT. vS. C^eol. Surv., 1884, p. 94, pi. 12, fig. 13. 



162550. Amphissa ventricosa Arnold. Holotype. 



Pleistocene. Deadman Island, off San Pedro, California. 

 Arnold, Mem. Calif. Acad. Sci., Ill, 1903, p. 242, pi. 5, fig. 11. 



43769. Amplexopora affinis Ulrich. Figured .sections of holotype. 

 Richmond (Ord. j. Wilmington, Illinois. 



Ulrich, (;eol. Surv. 111., \'III, 1890, p. 450, pi. 36, fig. 2a. 

 = Heterotrypa aflinis. 



42313. Amplexopora ampla Flricli and Ba.ssler. Coty])es and figured 



.section. 

 Lorraine (Orel.). Nashville, Tennes.see. 



Ulrich and Bassler, Smithsonian Mi.sc. Coll., Oviart., XLVlI, 1904, 

 p. 42, pi. 13, figs. 7, 8; pi. 14, fig. 3. 



