524 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



6568. Pleurotomaria inornata Meek. Holotj^pe. 



Upper Carboniferous. Mortons Shaft, Nebraska City, 

 Nebraska. 



Meek, Final Rept. U. S. Geol. Surv. Nebr. (Hayden), 1H72, p. 232, 

 pi. 4, fig. 14. 



34126. Pleurotomaria isaacsi Hall and Whitfield (?) Plesiotype. 

 Three Forks (Dev.). Wall Canyon, Clark Fork \^alley, 

 Yellowstone National Park. 



Girty, Mon, XXXII, Tt. II, U. S. Geol. Surv., 1899, p. 505, pi. 

 66, figs. 5a, 5b. 



1 733 1. Pleurotomaria lonensis Walcott. Cotype. 



Upper Pogonip (Ord.). L,one Mountain, near Faireka, 

 Nevada. 

 Walcott, Mon. VIII, U. S. Geol. vSvirv., 1S84, p. 80, pi. 11, fig. 22. 



19506. Pleurotomaria marrotiana D'Orbigu}'. Holotype. 



Turonien (Cret.). Riberac, Dordogne, France. 



D'Orbigiiy, Paleont. Francaise, Terr. Cret., II, 1842-43, p. 267, pi. 

 202, figs. 5, 6. 



3628. Pleurotomaria niorrisiana McCoy. Plesiotypes. 



Carboniferous. Harpers Hill on the Hunter, New South 

 Wales, Australia. 



Dana, Wilkes U. vS. Expl. Exped., X, 1S49, p. 706, Atlas, pi. 9, 

 figs- 15, 15a, 16. 



17900. Pleurotomaria muralis Owen. Holotype. 



Ordovician. lyower Fort Garry, Red River of the North, 

 Manitoba, Canada. 



Owen, Rept. Geol. Surv. Wis., Iowa, and Minn., 1852, p. 5S1, 

 pi. 2, fig. 6. 



14413. Pleurotomaria nevadensis Walcott. Cotype. 



Lower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 259, pi. 24, figs. 

 2, 2a. 



14414. Pleurotomaria nodomarginata McChesney. Plesiotjpe. 



I^ower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 259, pi. 18, fig. 15. 



3661. Pleurotomaria nuda Dana. Holotype. 



Carboniferous. Harpers Hill on the Hunter, New South 

 Wales, Australia. 



Dana, Wilkes U. vS. Expl. Exped., X, 1S49, p. 706, Atlas, pi. 9, 

 figs. I7a-c. 



659H. Pleurotomaria perhumerosa Meek. Cotypes. 



7025. Upper Carboniferous. Mortons vShaft, Nebraska City, 



Nebraska, and Rulo, Kansas. 



Meek, Final Rept. U. S. Geol. Surv. Nebr. (Ilaj'den), 1872, j). 232, 

 pi. 4, figs. I3a-I3b. 



