1911J Teller, Fossils front, the Palmozoic Formations. 219 



GALLEY TWENTY-FOUR— WIS. NAT. HIST. 



Locality — Horicon, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Triplecia niagarensis Hall and Clarke. Niagara (Sil.) 



Pal. of N. Y., Hall and Clarke, 1894, Vol. 8, Pt. 2, pi. 83, figs. 16-20. 

 Locality — Wauwatosa, Wis. 

 Types — Univ. of Chicago. 



Triplesia primordalis Whitfield. Upper Cambrian. 



Ann. Eept. Geol. Surv. Wis., Whitfield, 1877, p. 51. 

 Geol. of Wis., Whitfield, 1882, Vol. 4, p. 172, pi. 10, figs 1, 2. 

 Locality — ■ Roche a Cris Bluff, Adams Co.. Wis. 

 Types — Univ. of Wisconsin. 



LAMELLIBRANCHIATA. 



Ambonychia acutirostra Hall. Niagara (Sil.) 

 Geol. Eept. Wis., Hall, 1860, p. 2. 

 Eighteenth Rept. N. Y. State Cab. Nat. Hist., Hall, 1864, p. 336, 



pi. 14, fig. 2. 

 Locality — Milwaukee, Wis. 

 Type— Am. Mus. of Nat. Hist. 



Ambonychia altenuata Hall. Trenton (Ord.) 



Geol. Surv. Wis., Rept. of Prog., Hall, 1861, p. 33. 



Geol. of Wis., Whitfield, 1882, Vol. 4, p. 206, pi. 5, fig. 6. 



Mem. Am. Mus. of Nat. Hist., Whitfield, 1895, Vol. 1, Pt. 2, p. 59, 



pi. 7, figs 8-11. 

 Locality — Beloit, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Ambonychia cancellosa Hall = Ambonychia lamellosa. 



Ambonychia erecta Hall. Trenton (Ord.) 



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



Mem. Am. Mus. of Nat. Hist., Whitfield, 1895, Vol. 1, Pt. 2, p. 59, 



pi. 7, figs. 1, 2. 

 Locality — Beloit, Wis. 

 Types — Am. Mus. of Nat. Hist. 



