336 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



182. Inoceramus ventricosus Meek and Hayden. Holotype and 



paratypes. 

 Fox Hills (Cret.). Mouth of Judith River, Montana. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., VIII, 1856, p. 87. 

 = Inoceramus pertenuis. 



30210. Inoceramya concentrica Ulrich. Cotypes. 



Lias ? Woody Island, Kadiak, Alaska. 



Ulrich, Harriman Alaska Exped., IV, 1904, p. 135, pi. 12, figs. 1, 2; 

 pi. 13, fig. 1. 



43378. Intrapora cosciniformis Nicholson. Plesiotype and figured 



section. 

 Hamilton (Dev.). Arkona, Canada. 



Ulrich, Geol. Surv. 111., VIII, 1890, p. 532, pi. 43, figs. 6, 6a. 



7864. Iphidea (??) sculptilis Meek. Cotypes. 



Upper Cambrian. Above Gallatin City, east side of Galla- 

 tin River, Montana. 



Meek, Sixth Ann. Rept. U. S. Geol. Surv. Terr., 1873, p. 479. 



= Iphidea sculptilis. 



See Kutorgina sculptilis and K. minutissima. 



35212. Iphidea sculptilis Meek. Plesiotypes. 



Flathead (Mid. Cambrian). Gallatin Range, Yellowstone 

 National Park. 



Walcott, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 447, pi. 

 60, figs. 5, 5a-c. 



See Iphidea (??) sculptilis and Kutorgina sculptilis. 



1 13486. Isapis caloosaensis Dall. Holotype. 



Pliocene. Caloosahatchie River, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, pi. 9, 

 fig. 10. 



= Fossarus (Isapis) anomala. 



1 12607. Ischnochiton tampaensis Dall. Holotype. 



Oligocene. Ballast Point, Tampa, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. II, 1892, p. 434, 

 pi. 23, fig. 23. 



46204. Ischyrina winchelli Billings. Plastotype. 



Upper Ordovician. Anticosti Island, Gulf of St. Law- 

 rence. 

 Billings, Cat. Sil. Foss. Anticosti, 1866, p. 16. 



46205. Ischyrodonta decipiens Ulrich. Cotypes. 



46206. Richmond (Ord.). Oxford, Ohio, and near Richmond, 



Indiana. 

 Ulrich, Geol. Surv. Ohio, VII, 1893, p. 673, pi. 54, figs. 16-19. 



