25 155 Grammysia obsolcta, Hull. Hamilton group. Shore of Skawatile lake N.Y. 156 Grammysia arcuata, Conrad, Hamilton group. Pratt's Falls, N.Y. 157 Grammysia bisulcata, Conrad Hamilton group. Pratt's Falls, N.Y. 158 Grammysia bisulcata, Conrad. Hamilton group. Pratt's Falls, N.Y. 159 Grammysia bisulcata, Conrad Hamilton group. Pratt's Falls. New York. 160 Grammysia bisulcata, Conrad, Hamilton group. Vesper, Onondaga Co. N.Y. 161 Grammysia nodocostata, Hull. Hamilton group. Madison county, N.Y. 162 Grammysia subarcuata, Hall. Chemung group. Cortland N.Y. 163 Tenta culites gyracanthus, Eaton Lower Helderberg group. Jerusalem Hill, N.Y. 164 Tenta culites gyracanthus, Eaton Lower Helderberg group. Jerusalem Hill, N.Y. 165 Hyolithes n.sp. heros, Shaly limestone Lower Helderberg group. Clarksville, N.Y. 166 Hyolithes n.sp. Shaly limestone Lower Helderberg group. Clarksville, N.Y. 167 Conularia pyramidalis, Hall. Shaly limestone Lower Helderberg group. Clarksville, N.Y. 168 Conularia pyramidalis, Hall. Shaly limestone Lower Helderberg group. Clarksville, N.Y.