258 



INDEX 



bassleri (D.ilmanella), 120 



Bather, F. A., 1 3 



Bathycoelia, see Pionodema 



battis (? Huenella), 160 



baueri (Porambonites), 102, 103 



bavarica (? Archasorthis) , 81 



beaumonti (Schizophoria), 143 



becsciensis (Stricklandia), 187 



Beecher, C. E., 16, 130, 131, 167 



Belanski, C. H., 175 



bella Fenton (Rhynchocamara), 189 



bella Schuchert and Cooper (Planidorsa), 101 



bellarugosa (Glyptorthis), 90 



bellula (Pionodema), 14-1 



biforata (Platystrophia), 64 



fissicostata (Platystrophia), 66 



lynx reversata (Platystrophia), 65 



sardoa (? Platystrophia), 66 

 BiLLiNGSELLA, 22, 27, 28, 32, 37, 40, 41, 48, 76 



alberta, see Nisusia 



billingsi, see Protorthis 



bivia, see Nisusia 



dice, see Deltatreta 



exporrecta, see Oligomys 



festinata, see Nisusia 



harlanensis, see Syntrophioides 



hlcksi, see Oligomys 



latourensis, see Protorthis 



orientalis, see Nisusia 



quacoensis, see Protorthis 



romingeri, see Bohemiella 



rugicostata, see Oligomys 



saffordi, see Syntrophioides 



transversa, see Nisusia 

 Billingsellids, 22, 27, 32, 34, 35, 37, 39, 41, 44, 48, 107 

 billingsi Hartt (Protorthis), 46 

 billingsi Schuchert and Cooper (Skenidioides), 72 

 billingsi Walcott (Huenella), 159 

 billingsiana (Stricklandia), 187 

 bilobata (ReuscheUa), 139 

 BiLOBlTES, 119, 130 



Bilobitids, 119, 130 



bilobus (Bilobites), 130 



biloculare (Conchidium), 163,* 181, 182 



bivia (? Nisusia), 45 



Bohemiella, 50, 52 



Booker, F. W., 163, 172, 173, 176, 181 



borealis Eichwald (Pentamerus), 178 



borealis Walcott (Wimanella), 50, 51 



borussica (Branconia), 168 



bouchardi (Ptychopleurella), 92 



Brachidia, 6 



Brachiophore processes, 6, 37 



supports, 6, 37 

 Brachiophores, 6, 37 

 brachynota (Platystrophia), 65 

 Branconia, 167, 168 

 brevirostris (Anastrophia), 170 

 brevis Billings (Stricklandia), 187 

 brevis Pander (Hemipronites), 116 

 brevis Pander (Productorthis), 82 

 brevis Willard (Multicostella), 98 

 breviuscula (Stricklandia), 187 

 broggeri Bancroft (Dalmanella), 120 



broggeri Lamansky (Porambonites), 102 

 Brooksina, 163, 165, 166, 178, 183 

 bubo (Clorinda), 172 

 Buckman, S. S., 14, 16, 17,20 

 burgessensis (Nisusia), 45 

 burlingtonensis (Rhipidomella), 133 

 Butts, C, 109 

 buttsi (Orthis), 75,86 



caducus (Gypidula), 174 

 callactis (Orthis), 7, 37, 75, 76 

 calligramma (Orthis), 37, 76 



subplicata (Schizoramma), 88 

 Caiman, W.T., 12 

 Camarium, 6 



camerata (Platystrophia), 65 

 Camerella, 162, 164, 166, 167 

 bella, see Rhynchocamara 

 ottawaensis, see Orthorhynchula 

 varians, see Rhynchocamara 

 Camerellids, 161, 162, 163, 164, 165, 166, 167, 171 

 campbelli (Syntrophina), 155 

 canadensis Billings (Stricklandia), 187 

 canadensis Clarke (Orthostrophia), 71 

 canalicula (Isorthis), 150 

 canaliculata (Levenea), 124 

 canalis (Resserella), 126 

 Cafellinia, see Capelliniella 

 Capelliniella, 163, 165, 166, 178, 179 

 carbonaria (Rhipidomella), 133 

 Cardinal angles, 6 

 area, 6 



process, 6, 34 

 Cardinalia, 34, 164 

 carinata (Cariniferella), 122 



epsilon (Cariniferella), 122 

 carinatus (Tropidoleptus), 152 

 Cariniferella, 30, 39, 119, 122 

 carletona (Pionorthis), 95 



carleyi (Retrorsirostra), 95 



insolens (Retrorsirostra), 95 



carrickensis (Estlandia), 115 



castellana (Stricklandia), 187 



Cella, 6, 30 



celsa (Schizoramma), 87 



chama (Platystrophia), 66 



chapmani (Stricklandia), 187 



chekiangensis (Orthotichia), 144 



Chilidial plates, 6, 24 



Chilidium, 7, 23 



choristites {Enteletes), see Enteletes lamarcki 



chouteauensis (Schizophoria), 143 



christianize (Archaeorthis), 81 



cimex (Platyorthis), 135 



circularis Pander (Hemipronites), 116 



circularis Savage (Stricklandia), 187 



circularis Sowerby (Platyorthis), 135 



circularis Winchell (Pionodema), 141 



circulus (? Mendacella), 127 



Clarkella, 30, 154, 156 



Clarkellidae, 154, 155 



clarkensis (Rhipidomella), 133 



clarksvillensis (Platystrophia), 65 



Clements, F. E., 15, 16 



