TYPE- SPECIMENS OF INVERTEBRATE FOSSILS. 123 



28933. Camptonectes bellistriatus distans Stanton. Cotypes. 



Jurassic. Yellowstone National Park. 



Stanton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 614, 

 pi. 72, fig. 13. 



221. Camptonectes? extenuatus (Meek and Hayden). Cotypes. 

 Jurassic. Southwest base of Black Hills, South Dakota. 



Meek and Hayden, Pal. Upper Mo., Smithsonian Cont. to Knowl., 

 No. 172, XIV, 1864, p. 78, pi. 3, fig. 6. 



See Pecten extenuatus. 



12335. Camptonectes extenuatus Meek and Hayden. Plesiotype. 

 Jurassic. East of Belle Fourche River, near Bear Lodge, 

 Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources, Black Hills, Dakota, 1880, 

 . p. 353, pi. 4, fig. 4. 



12552. Camptonectes extenuatus Meek and Hayden. Plesiotype. 

 Jurassic. Northwest of Ra wrings, Wyoming. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. II, 

 1S77, p. 290, pi. 7, fig. 18. 



12535. Camptonectes pertenuistriatus Hall and Whitfield. 



Holotype. 

 Jurassic. Northwest of Rawlings, Wyoming. 



Hall and Whitfield, Rept. U. S. Geol. Expl., 40th Par., IV, Pt. II, 

 1877, p. 291, pi. 7, fig. 17. 



28934. Camptonectes pertenuistriatus Hall and Whitfield. 



Plesiotype. 

 Jurassic. Yellowstone National Park. 



Stanton, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 614, 

 pi. 72, fig. 11. 



8643. Camptonectes platessa White. Holotype. 



Colorado (Cret.). Five miles west of Mineral Spring, 

 Arizona. 



White, Prelim. Rept. U. S. Geogr. Surv. W. 100th Merid., 1874, 

 p. 25; Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 

 1S76, p. 176, pi. 18, fig. 5a.— Stanton, Bull. No. 106, U. S. 

 Geol. Surv., 1893, p. 72, pi. 9, fig. 6. 



8179. Camptonectes platessiformis White. Holotype. 



Jurassic. North base of Aquarius Plateau, Southern Utah. 



White, Twelfth Ann. Rept. U. S. Geol. Surv. Terr., 1878 (1883), 

 Pt. I, p. 143, pi. 37, fig. 5a. 



8580. Camptonectes stygius White. Cotypes. 



Jurassic. Bluff south of Dirty Devil River and North Fork 

 of Virgin River, Utah. 



White, Prelim. Rept. U. S. Geor. Surv. W. iooth Merid., 1874, 

 p. 23; Rept. U. S. Geogr. Surv. W. iooth Merid., IV, Pt. I, 

 1876, p. 164, pi. 13, figs. 2a-c. 



