TYl'K SPECIMENS OF INVERTEBRATE FOSSILS. 409 



17445. Modioloides prisca Walcott. Holotype. 



Lower Cambrian. Near Whitehall, Washington County, 

 New York. 



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



fig- 3- 

 = Modiolopsis ?? pri.sca. 



46201. Modiolopsis alata Ulrich. Cotypes, 



Lorraine (Ord. ). Covington, Kentucky. 

 Ulrich, Ainer. (leol., V, 1890, j). 280, figs. Sa-c. 

 = Eurymya alata. 



46241. Modiolopsis angustata TTlrich. Holotype. 



Utica (Ord.;. Co\-ington, Kentucky. 



Ulrich, Anier. Geol., V, 1890, p. 283, fig.s. loa-e. 



46242. Modiolopsis arguta Ulrich. Cotypes. 



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



nesota. 



Ulrich, Geol. and Nat. Hist. vSnrv. Minn., hinal Rept., Ill, Pt. II, 

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



46244. Modiolopsis chatfieldensis Ulrich. Holotype. 



Black River (Ord.). Chatfield, Mituiesota. 



Ulrich, Geol. and Nat. Hist. vSurv. Minn., Final Re])t., Ill, I't. II, 

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



46246. Modiolopsis concava Ulrich. Holotype. 



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



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

 1892, p. 227, fig. 13; Geol. and Nat. Hi.st. Surv. Minn., l-'inal 

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



46245. Modiolopsis concentrica Hall and Whitfield. Plesiotypes. 



Richmond (Ord. ). Wayncsville, Ohio. 



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

 I '"^94, P- 5K'- pl- 37. fi.i?s. 15. 16. 



46247. Modiolopsis ? consimilis Ulrich. Holotype. 



Stones River (Ord.;. Murfreesboro, Tennessee. 



Ulrich, (.ieol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pl. II, 

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



46248. Modiolopsis milleri Ulrich. Cotypes. 



Lorraine (Ord.). Cincinnati, Ohio. 



Ulrich, Amer. Geol., V, 189^), p. 274, figs. 3a-d. 



46249. Modiolopsis modiolaris Conrad. Ple.siotype. 



Lorraine (Ord.). Cincinnati, Ohio. 



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

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



