TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 409 



17445. Modioloides prisca Walcott. Holotype. 



Lower Cambrian. Near Whitehall, Washington County, 

 New York. 



Walcott, Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 615, pi. 73, 



%• 3- 

 = Modiolopsis ?? prisca. 



46201. Modiolopsis alata Ulrich. Cotypes. 



Lorraine (Ord.). Covington, Kentucky. 



Ulrich, Amer. Geol., V, 1890, p. 280, figs. 8a-c. 



= Kurymya alata. 



46241. Modiolopsis angustata Ulrich. Holotype. 



Utica (Ord.). Covington, Kentucky. 



Ulrich, Amer. Geol., V, 1890, p. 283, figs. loa-e. 



46242. Modiolopsis arguta Ulrich. Cotypes. 



46243. Black River (Ord.). Near Fountain, and Chatfield, Min- 



nesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 506, pi. 36, figs. 3-6. 



46244. Modiolopsis chatfieldensis Ulrich. Holotype. 



Black River (Ord.). Chatfield, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 508, pi. 36, figs. 9, 10. 



46246. Modiolopsis concava Ulrich. Holotype. 



Black River (Ord.). Near Cannon Falls, Minnesota. 



Ulrich, Nineteenth Ann. Rept. Geol. and Nat. Hist. Surv. Minn., 

 1892, p. 227, fig. 13; Geol. and Nat. Hist. Surv. Minn., Final 

 Rept., Ill, Pt. II, 1894, p. 509, pi. 36, figs. 15, 16. 



46245. Modiolopsis concentrica Hall and Whitfield. Plesiotypes. 



Richmond (Ord.). Waynesville, Ohio. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 510, pi. 37, figs. 15, 16. 



46247. Modiolopsis ? consimilis Ulrich. Holotype. 



Stones River (Ord.). Murfreesboro, Tennessee. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 505, pi. 42, figs. 17, 18. 



46248. Modiolopsis milleri Ulrich. Cotypes. 



Lorraine (Ord.). Cincinnati, Ohio. 



Ulrich, Amer. Geol., V, 1890, p. 274, figs. 3a-d. 



46249. Modiolopsis modiolaris Conrad. Plesiotype. 



Lorraine (Ord.). Cincinnati, Ohio. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 481, figs. 37a, b. 



