INDEX 



383 



Randall, F. A., mentioned, 214, 260 

 Rays, characters of, 95 

 Redfield collection, Yale, 257, 261 

 Redpath Museum, McGill, flsh remains 



in, 264 

 Regan, C. T., cited, 67, 160 

 "Reorganizing ideas", 36 

 Retzius, cited, 270 

 Rhadinichthys, characters of genus, 



2.57 

 Rhadinichthys sp., 260 



aloerti, 261 



antiquits, 282 



cairnsi, 261 



deani, 261f 



dcvonicus, 258, 282 



elegantulus, 260 



modulus, 262 



reticulatus, 282 

 "Rhamphodus", 121, 145. J 46 

 Rhamphodus tetrodon, 126, 127 

 Rhineland, Germany, fish remains 



from, 227 

 Rhinestreet shale, New York, fish re- 

 mains in, 113 

 Rhinochimaera, 143 

 Rhipidistia, 69 

 Rhynchodus, 119, 120, 136, 149 



characters of genus, 123 



dermal plates of, 144 



fin-spines accompanying, 139, 142 



in Iowa Devonian, 48 

 Rhynchodus sp., 132, 277, 281, 287 



emigratus, 127 



excavatiis, 12J h 127, 132, 145, 277 



major, 127. 132. 146 



occidentalis, 124 



pertenuis, 131, 287 



rostratus. 127 



secans. 123, 128, 131, 145, 277 

 Riprap, production of, 23, 24 

 Roadmaking, stone for, production of, 



23, 24 

 Roads, gravel, advantages of, 6 

 Rock Island, Illinois, fish remains 



from, 49, 196 

 Rockwood, Colorado, fish remains 



from, 94, 285 

 Rocky river, Ohio, fish remains 

 from, 282-284 



Rohon, mentioned, 139 



Rubble, production of, 23, 24 



"Ruderorgan" of Coccosteus, 185 



Russia, fish remains from, 112, 119, 147, 

 163, 226, 228 



S 



Sagenodvs angustus, 212 

 pertenuis, 163 



St. John, O. rl., cited, 49, 126, 194 



St. John and Werthen, cited, 106 



St. Louis beds, Iowa, fish remains in, 

 156 



Salina beds, flsh remains in, 73 



Sand and gravel, production of, by 

 counties, 26 

 by years, 13 



Sand-lime brick, production of, by 

 years, 13 

 classified, 28 



Sandstone, production of, 23 



Sauripteris taylori, 290 



Sauripterus, 236 



Sauripterus taylori, relations to Rhiz- 

 odonts, 238 



Savage, T. E., mentioned, 49 



Scat Craig, Scotland, fish remains 

 from, 228 



Scaumenac Bay, fish remains from, 74, 

 91, 213, 236, 256, 280 



Scaumenacia, absence of ossified cen- 

 tra in, 147 

 characters of genus, 235 

 relations to Arthrodires, 235 

 to Dipterus, 235 



Scaumenacia curta, 213, 235, 280 



Schuchert, Charles, acknowledgments, 

 291 

 mentioned, 45, 111, 196, 224, 257 



Schwalbe, G., cited, 270 



Scombroids, 64 



Scotland, fish remains in, 55, 60, 104, 

 210, 226, 228, 231, 234, 236, 238, 

 246, 250, 256, 258, 261, 273 

 Ostracophores from, 54 



Scott county, Iowa, flsh remains in, 

 48-50, 213, 219 



Selachii, 68, 69 



Selenosteus kepleri, 285 



Senckenburg Museum, Frankfort, Ger- 

 many, 167 



