NORTH AMERICAN SHELLS. 



15 



GROUP OF H. STRIGOSA. (Continued). 



1 179 H. strigosa, var. Binneyi, depressed. 



Utah 



n8o H. " var. Binneyi, elevated. 



Utah 



1 181 H. " var. Binneyi, depressed 



Utah 



1 182 H " var. Binneyi, dentate. 



Utah 



1 183 H. " var. Binneyi, elevateil, 



large. Utah 



1184 H. " var. Binneyi, depressed, 



large. Utah 



X. Banded (orms, ribbing variable. 



1 185 H. strigosa, var. albofasciata, Hemp- 



hill. Utah 



1 186 H. " var. albofasciata, large 



elevated. Utah 



1 187 H. " var. albofasciata, smaller 



depressed. Utah 



1188 H. " var. albofasciata. elevated 



Utah 



1189 H. " var. albofasciata, smaller 



Utah 



1 190 H. " var. albofosciata, dentate 



Utah 



1 191 H. " var. albofasciata. very 



small, Utah 



1 192 H. " var. castaneus, Hemp- 



hill. Utah 



1193 H. " var. castaneus, smooth. Ore. 



X. Shell keeled, ribbing irregular. 



1 194 H. strigosa, var. Wahsatchensis, Utah 



1 195 H. " var. " tall, 



narrow. Utah 



1 196 H. " var.Wahsatchensis.small, 



Utah 



1197 H. " var. intersum, Hemphill, 



Idaho 



1198 H. " var. intersum, small. Idaho. 



B. Shell smooth or with rough strite. 

 Keeled. 



1 199 H. strigosa, var. Utahensis, Hemphill, 



Utah 



1200 H. " var: Utahensis, small, Utah 



X. Subcarinated forms. 



1201 H." strigosa, var. subcarinata, Idaho.. 



1202 H. " var. picta, Hemphill, " 



1203 H. " var. bicolor, 



1204 H. " var. " depressed. " 



1205 H. " var. lactea, 



1206 H. " var. parma. Washington, 



X. Whorls convex, stria; rough. 



1207 H. strigosa, var. rugosa, Hemphill... 



1208 H. *' var. " depressed... 



1209 H. " var. " smaller 



1210 H. " var. " smallest 



1211 H. " var. Coopeii, W. G. Binn. 



1212 H. " var, 



1213 H. •' var. 



1214 H. " var. 



1215 H. '• var. fragilis. Hemphill... 



1 216 H. " var. " depressed... 



1217 H. " var. " small 



I2i8 H strigosa, var Buttouii, Hemphill, 



Utah 



GROUP OF H. STRIGOSA. (Continued). 



1219 H. strigosa, var.Buttonii,smaller.Utah 



1220 H. " var. " depressed. " 



1221 H. " var. " dentate. " 



1222 H. " var. " smaller. " 



1223 H. " var. " " 



1224 H. " var. " depressed. " 



1225 H. " var. " very small.," 



Typical forms of H. strigosa. 



1226 H. strigosa, Gld, Utah 



1227 

 1228 

 1229 

 1230 

 1231 

 1232 

 1233 

 1234 

 1235 



1236 



1237 



1238 



1239 



1240 



11241 



I 1242 



!I243 



1244 



1245 



II. 

 II. 

 II. 

 II. 

 H. 

 H. 



n. 



H. 

 H. 



H. 

 II. 

 H. 

 H. 

 H. 

 H. 

 H. 

 H. 

 H. 

 H. 



depressed. Utah... 



larger, 

 variable. 



" large. " 



var. jugalis, Ilemphill. Utah, 

 var. " medium. '• 

 var. " small. " 



Bandless forms. 



corneus, Hemphill. 



elevated. ... 



" depressed... 



" variable 



strigosa, var. 

 ' ' var. 



var. 

 var. 

 var", 

 var. 



" small 



" var. albida, Hemphill.... 

 " var. " depressed.... 

 " var. " smaller, ele'td 

 " var. " small 



C. Shell with revolving ribs, 

 Subangled or keeled. 

 1246 H. strigosa, var. hybrida, Ilemphill. 



1247 

 1248 

 1249 

 1250 

 1251 

 1252 

 1253 

 1254 

 1255 



1256 H. 



1257 H. 



H. 

 H. 

 H. 

 M. 

 H. 

 H. 

 H. 

 H. 

 II. 



var. ■■ elevated.. 



var. " small 



var. Ilemphilli, Newc 



var. " smaller... 



var.Oquirrhensis, Hemphill. 



var. " 



var. " small... 



var. Ilaydeui, Gabb 



var. " small... 



var. Gabbana, Hemphill. 



var. " small 



Section Mesodon. 



GROUP OF ir. GRISEOI,A. 



125S H. grisola. Pfr. Texas 



GROl'P OF H. AI.BOI.ABRIS. 



Albolabris. Say. Minnesota 



•' var. .\ndrewsi, W. .-V. Binn, 



Tennessee 



" var. major, Binn. Georgia. 



" var. exoleta. Say. Ohio 



" var. thyroides. saj-. Ohio. 



1264 H. niuUilineata, Say. ^Minnesota 



i 1265 II. Mitchelliana. Lea. Ohio 



; 1266 H. Wheatleyi, Bid. North Carolina.. 



1267 II. Pennsylvauica, Green. Ohio 



1265 H. profunda, Say. Minnesota 



1269 II. jeiuua, Say. Florida 



var. ■' 



GROUP OF H. PALI.I.\TA. 



palliata. Say. Tennessee 



var. appressa, Sav. N. C. 

 var. '■ ?;mall. " 



1259 

 1260 



1261 

 1262 

 1263 



H. 

 H. 



H. 

 H. 



II. 



1270 II. 



1271 

 1272 

 1273 



H. 

 II. 

 H. 



20 



35 

 20 



15 

 10 



15 

 20 



15 

 15 

 20 

 20 



15 

 10 



15 



