INDEX 



269 



Socket plates, 37 

 Sockets, 10, 25, 34, 35* 

 sob (Pionorthis), 95 

 Solaris (Plxsiomys), 95 

 solitaria (r Lcvenea), 123 

 solus (Zdimir), 177 

 sordida (Cyclococlia), 64 



multiplicata (Cyclococlia), 6+ 

 SowerbvcUin.'c, 112 

 spcncci (? Nisusia), 45 

 spherica (Hemipronites), I 16 • 



Spirifer, 22, 87 



aperturata, see Platystrophia 



chama, see Platystrophia 



liratus, see Stricklandia 



tridens, see Platystrophia 



tscheffkini, see Noetlingia 

 Spirifera biforata fissicostata, see Platystrophia 

 Spondylium, 10, 26, 162, 164 

 Spondyloid, 1 1 



springfieldensis (Parmorthis), 129 

 squamata (V'ellamo), 114 

 stracheyi (Austinella), 99 

 Stris, 1 1 



striata Pander (Angusticardinia), 84 

 striata Pander (Nicolella), 77 

 striata Twenhofel (Stricklandia), 187 

 striata Walcott (Billingsella), 49 

 striato-costatus (PL-Esiomys), 95 

 striatula (Schizophoria), 143, 144 



marjlandica (Schizophoria), 143 

 Stricklandia, 161, 187 



balclatchiensis, see Metacamerella 

 Stricklandidx, 161, 186 

 strigosa (Platystrophia), 65 

 Stropheodonta, 22 

 Strophomena, 19, 97, 165 



aurora, see Eostrophomena 



ventrocarinata, see Valcourea 

 Strophomenacea, 21, 22, 48 

 strophomenoidcs Hall (Orthostrophia), 33,* 70 

 strophomenoides Raymond (Valcourea), 97 

 subaequata (Pionodema), 141, 142 



gibbosa (Dolcroides), 63 



perveta (Doleroides), 63 

 subsequivalvis (Enteletes), 146 

 subcarinata Dunbar (Levenea), 123 

 subcarinata Hall (Levenea), 36, 123 

 subcordiformis (Rhipidomella), 134 

 subdivisus (PK-esiomys), 95 

 subelliptica (Schizophoria), 143 

 subfissicosta (Schizoramma), 88 

 subglobosa (Gypidula), 174 

 subjugata (Hebertella), 60 

 sublsevis (Enteletina), 148 

 sublamellosa (Ptychopleurella), 92 

 sublaticosta (Plat)-strophia), 65 

 sublimis (Platystrophia), 66 

 sublinguifer ("Penfamerella"), 176 

 suborbicularis (Rhipidomella), 134 

 subplicata Bancroft (Harknessella), 138 

 subplicata Reed (Orthis), 76 

 subquadrata Bancroft (Harknessella), 138 

 subquadratus Hall (Plxsiomys), 32, 32,* 94, 95, 96 



subrcctus (Pcntamcroides), 178, 179 

 subrossicus (Enteletoidcs), 149 

 Suess, E., 103 

 sucssi (Parentclctes), 147, 148 



acuticosta (Parentclctes), 147, 148 

 sulcata (Eoorthis), 51 

 Sulcus, 1 1 



swallow! (Schizophoria), 143 

 Swantonia, 44, 159 

 sweeneyi (Dinorthis), 23, 94 

 symmetrica (Polytoechia), 110 

 Syntrophia, 40, 154, 158 



campbelli, see Syntrophina 



isis, see Syntrophina 



nona, see Clarkella 



nundina, see Syntrophina 



palmata, see Syntrophina 



perilla, see Syntrophina 



rotundata, see Syntrophina 

 Syntrophiacea, 43, 48, 154 

 Syntrophiids, 154, 158, 161, 167 

 Syntrophina, 154, 155 

 Syntrophinella, 156 

 Syntrophioides, 40, 154, 155 

 szajnochai (Isorthis), 149 



tacens (Glossorthis), 78 

 Taffia, 85 

 Taffiinx, 74, 85 

 Teeth, 1 1 , 24 

 Teichert, C, 104 

 tenuicosta (Rhipidium), 181 

 tenuicostata Eichwald (Platystrophia), 66 

 tenuicostata Weller (Rhipidomella), 134 

 tenuilineata Foerste (Mendacella), 127 

 tenuilineata Hall (Thiemella), 136 

 tenuilineata Savage (Rhipidomella), 134 

 tenuis (Productorthis), 83 

 tenuistriatum (Conchidium), 181 

 tenuistriatus (? Hemipronites), 116 

 Terebratula lynx, see Platystrophia 



tenuicostata, see Platystrophia 

 Terebratulitcs xquirostris, see Porambonites 



biforatus, see Platystrophia 

 teretior (Porambonites), 102, 103 

 tersa (? Dalmanella), 120, 121, 133, 135 

 tesluJinaria Hall and Clarke, see Orthis rogata 

 testudinaria Dalman (Wattsella), 120, 121, 125, 126 

 tetragonum Pander (Clitambonites), 113 

 tetragonum Pander (Orthis), 76 

 tetragonum Pander (Panderina), 82 



lata (Panderina), 82 

 tetragonum Roemcr (Isorthis), 150 

 texana Girty (? Orthotichia), 144 

 texana Walcott (Eoorthis), 51 

 texana Walcott (Huenella), 159, 160* 



Ixviuscula (Huenella), 159 

 thakil (Dinorthis), 94 



convexa (Dinorthis), 94 



trifida (Dinorthis), 94 

 Thiemei.i-a, 19, 133, 136 

 thiemi (Rhipidomella), 134 

 Thomas, I., 25, 26 

 Thomson, J. Allan, 14, 30, 32, 33 



