210 Bulletin Wisconsin National History Society. [Vol. 9, No. -t. 



Lingula aurora var. Hall = Lingulella stoneana. 



Lingula milwaukeensis Cleland. Hamilton (Dew) 



Wis. Geol. and Nat. Hist. Surw, Cleland, 1911, Bull. 21, p. 69, pi. 12, 



figs. 3, 4. 

 Locality — Milwaukee, "Wis. 

 Types — Mil. Pub. Museum. 



Lingulella stoneana Whitfield. Upper Cambrian. 



Lingula aurora var., Sixteenth Ann. Kept. N. Y. Cab. Nat. Hist., 



Hall, 1863, p. 127, pi. 6, figs. 6-8. 

 Lingulella stoneana, Geol. of Wis., Whitfield, 1SS2, Vol. 4, p. 344, 



pi. 27, figs. 6, 7. 

 Locality — Mazomanie, Wis. 

 Types — Am. Mus. of Nat. Hist. 



LinguJepis pinniformis (Owen.) Upper Cambrian. 



Lingula, pinnaformis, Geol. Surw Wis., Iowa and Minn., Owen, 



1852, p. 583, pi. IB, figs. 4, 6, 8. 

 Lingula pinnaformis, Geol. of Wis., Hall, 1862, p. 21 and 435, fig. 3. 

 Orbicula prima, Geol. Surv. Wis., Iowa and Minn., Owen. 1852, 



figs. 17, 19. 

 Lingulepis pinniformis, Pal. of N. Y., Hall and Clarke. 1892, Vol. 8. 



Pt. 1. p. 60, figs. 22, 23, and pi. 1, figs. 35, 36. 

 Locality — Falls of St. Croix and Hudson, Wis. 

 Types—? 



LinguJodiscina marginalis (Whitfield.) Hamilton (Dev.) 



Discina marginalis, Ann. Eept., Geol. Surw Wis., Whitfield, 1879, 



p. 70. 

 Discina marginalis, Geol. of Wis., Whitfield, 1882, Vol. 4, p. 325, 



pi. 25, fig. 11. 

 Orbiculoidea marginalis, Pal. of N. Y., Hall and Clarke, 1892. 



Vol. 8, Pt. 1, p. 127, pi. 4F, fig. 17. 

 Lingulodiscina marginalis, Wis. Geol. and Nat. Hist. Surv., Cleland, 



1911, Bull. 21, p. 84, pi. 12, figs. 11, 12, 13. 



Locality — Milwaukee, Wis. 

 Types — Univ. of Wisconsin. 



