3rQ 



io 



Spirifer. 



lynx, Von Buch. Hall, Pal. N. Y., I. p. 133. Mineral Point, Doty's 



Island, Sturgeon Bay. 

 Niagarensis, Conrad. Hall, Pal. N. Y., II. p. 264. Milwaukee. 



Atbtpa. 



increbescenp. Hall, Pal. N". Y., I. p. 146. Mineral Point, Newark. < 

 reticularis, Dalman. Hall, Pal. N. Y., II. p. 72, (Anemia reticularis, 



Linn.) Milwaukee, 

 nitida, Hall, Pal. N. Y., II. p. 26S. Milwaukee, 

 obtusicplicata, Hall, Pal. N. Y., II. p. 279. Milwaukee. 



Pektamerus. 



Oblongus, Murcbison. Hall, Pal. X. Y., II. p. V9. Milwaukee, Blue 



Mounds, Bailey's Harbor, Door Co., Sturgeon Bay. 



cccidentalis, Hall, Pal. JN. Y., II. p. 341. On the peninsula between 



Green Bay and Lake Michigan. Mr. Hall. 



ACEPHALA. 

 NUCULA. 



levata, Hall, Pall. X. Y., I. p. 150. Platte Mounds, Hazel Green. 



Tellinomya, Hall, Pal. N. Y., I. p. 15l. 

 nasuta, Hall. Mineral Point. 



Amboyciiia, Hall, Pal. N. Y., I. p. 103. 



AmygdaUua, Hall, Pal. N. Y., I. p. 165. Mineral Point, Beetown, Beloit. 



MODIOLOPSIS. 



curta, Conrad. Hall, Pal. N. Y., I. p. 297. Mineral Point, 

 ovatus, Hall, Pal. N, Y., II. p. 101. Milwaukee. 



Pyrenomceus, Hall, Pal. N. Y., II. p. 87. 

 cuneatus, Hall. Milwaukee. 



V 



GASTEKOrODA. 



Maclurea, Laseuer. 



magna, Laseuer, Jour. Acad. Nat. Sc, vol. I., p. 313, pi. 13, figs. 1, 2, 3. 

 Hall, Pal. N. Y., I. p. 26, pi. 5, fig. 1. Newark, Rock county. 



Pleurotomaria. 



Uinbilicata, Hall, Pal. N. Y., L p. 43. Beloit, Fairwater, Doty's Island, 

 lenticularis, Conrad. Hall, Pal. N. Y., I. p. 172. Mineral Point, Exeter, 



Newark, Doty's Island, West side of Green Bay. 

 subconica, Hal), Pal. N. Y., I. p. 174. Mineral Point, Newark, Rock Co. 



