220 Bulletin Wisconsin National History Society. [Vol. 9, No. 4. 



Ambonychia lamellosa (Hall.) Trenton (Ord.) 



Ambonychia cancellosa, Geol. Surv. Wis., Eept. of Prog., Hall, 1861, 



p. 31. 

 Ambonychia lamellosa, Geol. of Wis., Whitfield, 1882, Vol. 4, p. 205, 



pi. 5, fig. 5. 

 Ambonychia lamellosa, Mem. Am. Mus. of Nat. Hist., Whitfield, 



1895, Vol. 1, Pt. 2, p. 57, pi. 7, figs. 5-7. 

 Locality — Mineral Point and Beloit, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Ambonychia planistriata Hall. Trenton (Ord.) 



Geol. Surv. Wis., Eept. of Prog., Hall, 1861, p. 32. 



Mem. Am. Mus. of Nat. Hist., Whitfield, 1895, Vol. 1, Pt. 2, p. 58, 



pi. 7, figs. 3, 4. 

 Locality — Mineral Point, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Amphicoelia leidyi Hall. Niagara (Sil.) 



Eighteenth Ann. Kept. N. Y. State Cab. of Nat. Hist., Hall, 1864, 



p. 339, pi. 14, figs. 13-15. 

 Locality — Eacine, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Clidophorus neglectus Hall. Trenton (Ord.) 



Pal. of N. Y., Hall, 1847, Vol. 1, p. 150, pi. 34, figs lg, h. 

 Geol. of Wis., Hall. 1862, Vol. 1, p. 55, figs. 2, 3. 

 Locality— Sinsinawa Mound and Mineral Point, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Conocardium ornatum Cleland. Hamilton (Dev.) 



Wis. Geol. and Nat. Hist. Surv., Cleland, 1911, Bull. 21, p. 108, 



pi. 21, figs. 9, 10. 

 Locality — Milwaukee, Wis. 

 Types— Collection of Edgar E. Teller. 



Cypricardites megambonus Whitfield. Trenton (Ord.) 

 Ann. Eept. Geol. Surv. Wis., Whitfield, 1877, p. 73. 

 Geol. of Wis., Whitfield, 1882, Vol. 4, p. 210, pi. 5, figs. 7, 8. 

 Locality — Beloit, Wis. 

 Types — Univ. of California. 



Cypricardites ? modesta Ulrich = Staffordia modesta. 



