76 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



33956. Athyris vittata Hall var. Plesiotype. 



Ouray (Upper Dew). Engineer Mountain, Colorado. 



Girty, Twentieth Ann. Rept. U. S. Geol. Surv., Pt. II, 1900, p. 47, 

 pi. 5, fig. 12. 



34127. Athyris vittata triplicata Girty. Holotype. 



Three Forks (Dev.). Soda Butte Creek, Yellowstone 

 National Park. 



Girty, Mon. XXXII, Pt. II, U. S. Geol. Snrv., 1899, p. 504, pi. 66, 

 figs. 4a, 4b, 4c. 



23075. Atresius liratus Gabb. Plesiotypes. 



Knoxville (Lower Cret. ). One mile northwest of Palmer's 

 Ranch, L,ake Count}^, California. 



Stanton, Bull. No. 133, U. S. Geol. Surv., 1S95 (Feb., 1896), p. 

 68, pi. 11, fig. 6. 



135834. Atrina (argentea var.?) chipolana Dall. Cot} T pes. 



Oligoceue. Santa Rosa Count}', Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1S98, p. 662. 



145988. Atrina harrisii Dall. Holotype. 



Miocene. Jones Wharf, Patuxent River, Maryland. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 663, 

 pi. 29, fig. 11. 



137831. Atrina jacksoniana Dall. Cotypes. 



136645. Eocene. Garlands Creek, Clarke County, and Jackson, 



Mississippi. 

 Dall, Trans. Wagner Free Inst. Sei. Phila., Ill, Pt. IV, 1898, p. 662. 



Atrypa (n. s.?) Owen, i852 = Pentamerella dubia Hall. 



1 166. Atrypa aspera (Schlotheim). Plesiotypes. 



Base of Upper Devonian. Anderson River, Mackenzie 

 River Basin, Canada. 



Meek, Trans. Chicago Acad. Sci. I, 1S6S, p. 96, pi. 13, fig. 12. 



633. Atrypa aspera (Schlotheim). Plesiotypes. 



Upper Devonian. Neils Valley, east of Eureka, Nevada. 



Meek, Rept. Expl. Great Basin of Utah, Simpson, 1876, p. 348, 



pi. I, figS. 2-2b. 



17928. Atrypa comis Owen. Holotype. 



Middle Devonian. Near Davenport, Iowa. 



Owen, Rept. Geol. Surv. Wis., Iowa, and Minn., 1852, p. 5S3, 

 tab. Ill A, fig. 4. 



= Gypidula comis. 



13848. Atrypa desquamata Sowerby. Plesiotype. 



Middle Devonian. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 150, pi. 14, figs. 

 4, 4a. 



= Atrypa missouriensis. 



See Atrypa reticularis Meek, 1877. 



