232 Bulletin Wisconsin Natural History Society. [Vol. 9, No. 4. 



Maclurea bigsbyi Hall. Trenton (Orel.) 



Ann. Eept. Geol. Surv. Wis., Hall, 1861. p. 37. 



Geol. of Wis.. Whitfield, 1882, Vol. 4. p. 222. pi. 6, figs. 17. 18. 



Mem. Am. Mus. of Nat. Hist,, Whitfield, 1895, Vol. 1, Pt. 2, p. 62, 



pi. 8, figs. 12-15. 

 Locality — Mineral Point and Janesville, Wis. 

 Types— Am. Mus. of Nat. Hist. 



Maclurea cuneata Whitfield. Galena (Ord.) 



Ann. Eept. Geol. Surv. Wis., Whitfield, 1877, p. 75. 



Geol. of Wis., Whitfield, 1S82, Vol. 4. p. 246, pi. 20. figs. 5. 6. 



Locality — Whitewater. Wis. 



Types — Whitewater High School. 



Maclurea subrotunda Whitfield. Galena (Ord.) 



Ann. Eept. Geol. Surv. Wis.. Whitfield, 1S77, p. 75. 

 Geol. of Wis., Whitfield. 1882, Vol. 4. p. 246, pi. 9, figs. 7, 8. 

 Locality — Whitewater. Wis. 

 Types — Whitewater High School. 



Maclurea wadsworthi Whitfield. Upper Cambrian. 



Bull. Am. Mus. of Nat. Hist., Whitfield. 1884, p. 153. pi. 14. fig. 16. 

 Locality — Mazomanie, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Metoptoma barabuensis Whitfield. Lower Magnesian. 

 Ann. Eept. Geol. Surv. Wis., Whitfield. 1877. p. 60. 

 Geol. of Wis., Whitfield. 1882. Vol. 4. p. 195. pi. 3, figs. 16, 17. 

 Locality — Baraboo, Wis. 

 Types — Univ. of California. 



Metoptoma ? peracuta Walcott. Upper Cabmrian. 



Proc. U. S. Nat. Mus.. Walcott, 1890. Vol. 13. p. 267. pi. 20. fig. 1. 

 Locality — Spoffords Bluff, Wis. 

 Type — U. S. National Museum. 



Metoptoma perovalis Whitfield. Trenton (Ord.) 



Ann. Eept. Geol. Surv. Wis.. Whitfield. 1877, p. 74. 



Geol. of Wis.. Whitfield. 1882. Vol. 4. p. 211. pi. 5. figs. 13, 14. 



Locality — Beloit. Wis. 



Types — Univ. of California. 



