108 REPORT OP THE 



Locality — Unknown. Supposed to be with the last. 



219. Athyris, sp ? 



Considerably resembles Terebratula rhomboidea. Phillips. 

 Also has some affinities with McChesney's A. obmaxima 

 from the Keokuk limestone 

 Locality — Grand Rapids. 



220. Athyris Roysii (?) JDeKoninck. 



Closely related to smooth specimens of this species. (Op. 

 cit, PL XX, Pig. 1 ) 

 Locality — Grand Rapids. 



221. Athyris, sp ? 

 Locality — Grand Rapids. 



222. Athyris, sp ? 

 Locality — Grand Rapids. 



223. Athyris, sp ? 



Locality — Grand Rapids. 



225. Athyris? sp ? 



Bears considerable relationship to Terebratula Roysii, var, Le- 

 veille, (DeKoninck, PL XXI, Fig. 1,) but it is somewhat 

 broader and more quadrate. It resembles A. obvia McChes- 

 ney, (p. 81,) but differs in having its two valves equally 

 convex, and in its faint radiating lines. It is less sinuate 

 than A. differentius, McChesney. 



Localitiesr— Grand Rapids, Pt. au Gres. 



229. Athyris? sp? 



Locality— Ferris' limekiln, 2 miles north of Jackson. 



224. Terebratula sacculus, var. hastata (?) JDeKoninck. 

 Locality — Grand Rapids. 



226 Terebratula subretziseforma (?) McCliesney. . 



It is broader proportionally than this species from the Kas- 

 kaskia limestone, but otherwise it agrees closely. The cor- 

 respondence is also very good with T. subtilita, Hall, (Stans- 

 bury's Rep., p. 409,) but our shell is smaller. It is smaller, 

 thinner and less deeply sinuated than specimens of T. subti- 

 ilita, Hall, from the coal measures of La Salle, 111. 

 Locality — Grand Rapids, 



227. Terebratula, sp? 

 Locality — Grand Rapids. 



228. Terebratula, sp ? 

 Locality — Grand Rapids. 



