TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 327 



1 539 1. Hyolithes impar Ford. Plesiotype. 



Lower Cambrian. Troy, New York. 



Walcott, Bull. Xo. 30, U. S. Geol. vSurv.. iS,S6, p. 139, j)!. 14, fi^s. 

 lb. 1(1, le; Tenth Ann. Rept. I'. S. Geol. vSurv., 1.S91., p. 621, 

 pi. 77, figs. lb, id, le. 



14995. Hyolithes neapolis Clarke. Cotype. 



Naples (Dev.). Parri.sh Gully, Naples, New York. 



Clarke, Bull. Xo. 16, I". S. Geol. Surv., 18S5, j). 56. ])1. 3, figs. 4, 5. 



23848. Hyolithes newtoni Walcott. Cotypes. 



Upper Cambrian. Near Deadwood, Black Hills, vSouth 

 Dakota. 

 Walcott, Proc. U. S. Xat. Mus., XIII, 1S90, p. 270, j)l. 20, fig. 4. 



8579. Hyolithes primordialis Hall ? Plesiotypes. 



15377. Lower Cambrian. Pioclie, Nevada. 



White, Prelim. Rept. U. S. Geogr. Surv.. W. looth Merid., Svo., 

 1S74, p. 6; Rept. V. S. Geogr. Surv., W. looth Merid., IV, 

 Pt. I, 1877, p. 37, pi. I, figs. 5-5e. 



= Hyolithes billingsi. 



35218. Hyolithes primordialis Hall. Plesiotypes. 



35219. Flathead (Mid. Cambrian). Yellowstone National Park. 

 St. Croix (Mid. Cambrian). Wisconsin. 



Walcott, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 454, 

 pi. 63, figs. 2, 2a. 



14885. Hyolithes princeps Billings. Plesiotype. 



18320. Lower Cambrian. Bic Harbor, Quebec, Canada, and Con- 



ception Bay, Newfoundland. 



Walcott, Bull. No. 30, U. S. Geol. vSurv., 1886, p. 135, pi. 13, 

 figs. 5-5b; Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 621, 

 pi. 76, figs. i-ie. 



18318. Hyolithes quadricostatus vShaler and Foerste. Plesiotype. 



Lower Cambrian. Conception Bay, Newfoimdland. 



Walcott, Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 621, pi. 78, 

 figs. i-iV). 



1 83 1 7. Hyolithes similis Walcott. Cotypes. 



Lower Cambrian. Conception Bay, Newfoundland. 



Walcott, Proc. U. S. Nat. Mus., XII, 1889, p. 38; Tenth Ann. 

 Rept. r. S. Geol. Surv., 1890, p. 622, pi. 75, figs. 3-3d. 



183 19. Hyolithes terranovicus Walcott. Cotypes. 



Lower Cambrian. Conception Bay, Newfoundland. 



Walcott, Proc. IL S. Nat. Mus., XII, 1889, p. 37; Tenth Ann. 

 Rept. r. S. Geol. Surv., 1890, p. 623, pi. 78, figs. 3-3d. 



17375. Hyolithes vanuxemi Walcott. Cotypes. 



Upper Pogonip ( Ord. ). Northeast of Adams Hill, Eureka 

 District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 85, i)l. 11, 

 figs. i6-i6b. 



