1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 291 



Proc. U. S. Nat. Mus. = Proceedings of the United States National Museum, Washing- 

 ton, D.C. 



Eep. Expls. & Sui'vs. li. R. R. Mississippi River to the Pacific Ocean = Reports of Ex- 

 l)lora1ious and Surveys to Ascertain the Most Practicable and Economical Route 

 for a Railroad from the Mississii)pi River to the Pacific Ocean, Washington, 

 D. C. 



Hep. Expl. Great Basin of Utah, J. H. Simpson ==: Report of Explorations across the 

 Great Basin of the Territory of Utah for a Direct Wagon-Route from Camp Floyd 

 to Genoa, in Carson Valley, in 1859, by Capt. J. H. Simpson, Washington, D. C. 



Rep. Geogr. & Geol. Expl. & Surv. West 100th Meridian = Report upon Geographical 

 and Geological Explorations and Surveys West of the One Hundredth Meridian, 

 in charge of First Lieut. George M. Wheeler, Washington, D. C. 



Kep. Geol. Black Hills of Dakota = Report on the Geology and Resources of the Black 

 Hills of Dakota, J. W. Powell in charge, Washington, D. C. 



Rep. Geol. Eastern Uinta Mts., J. W. Powell ;= Report on the Geology of the Eastern 

 Portion of the Uinta Mountains and a Region of Country Adjacent Thereto, by J. 

 W. Powell, Washington, D. C. 



Eep. Geol. Expl. 40th Parallel = Report of the Geological Exploration of the Fortieth 

 Parallel, by Clarence King, U. S. geologist, Washington, D. C. 



Rep. U. S. Geol. & Geogr. Surv. Terr., 4to, Vol. IX = Report of the United States 

 Geological Survey of the Territories, F. V. Hayden, U. S. geologist in charge, 4to 

 series, Washington, D. C. 



Rev. Foss. Ostreida) N. A. := A Review of the Fossil Ostreidse of North America, and a 

 Comparison of the Fossil with the Living Forms, by Charles A. White, in Fourth 

 Annual Report of the Director of the United States Geological Survey, Wash- 

 ington, D. C. 



Rev, Non Marine Foss. Moll = A Review of the Non-Marine Fossil Mollusca of North 

 America, by Charles A. White, in Third Annual Report of the Director of the 

 U. S. Geological Survey, Washington, D. C. 



12th Ann. Rep. U. S. Geol. & Geogr. Surv. Terr. = Twelfth Annual Report of the United 

 States Geological and Geographical Survey of the Territories, by F. V. Hayden, 

 U. S. geologist, Washington, D. C. 



U. S. & Mex. Bound. Survey, Vol. I =; United States and Mexican Boundary Survey, 

 Report of William II. Emory, Washington, D. C. 



TRIASSIC SPECIES. 



Acrochordiceras hyatti Meek. 



Rep. Geol, Expl. 40th Parallel, vol. iv, part i, p. 124, pi. xi, figs. 5, a. Mus. No. 

 12514. 



Arcestes ? White. 



12th Ann. Rep. U. S. Geol, & Geogr, Surv, Terr,, p. 117. Mus. No, 8194. 

 Arcestes ? cirratus White, 



12th Ann, Rep. U. S. Geol. & Geogr. Surv, Terr,, p, 116, Mus, No. 8192, 

 Arcestes gabbi Meek, 



Rep, Geol, Expl, 40th Parallel, vol, iv, part i, p. 121, pi. x, figs, 6, a. Mus. No, 12523. 

 Arcestes ? perplanus Meek, 



Rep. Geol. Expl. 40th Parallel, vol. iv, part i, p. 120, pi. xi, figs. 7, a. Mus. No. 12531. 

 Aviculopecten ? altus White, 



12th Ann. Rep. U, S, Geol, & Geogr. Surv. Terr., p, 110, pi, xxxii, fig. 3a. Mus. 

 No. 8189. 

 Aviculopecten ? idahoeiisis (Meek) White. 



12th Ann. Rep. U. S, Geol, & Geogr. Surv. Terr,, p, 110, pi. xxxii, fig. 2a. Mus. No. 

 8187. 



