INDEX 



259 



clcobis (Rhipidomella), 133 



clermontensis (? Hebertella), 60 



Clinambon, 107, 115 



Clitambonacc.1, 22, 28, 43, 44, 48, 107 



Clitambonites, 21, 22, 27, 29, 38, 107, 113 



amcricanus, see V'ellamo 



complectens, see \'ellamo 



diversa altissima, sec \'cllamo 



multistriata, sec \'ellamo 



planus rctroflcxus, see Billlngsella reflexa 



rogerscnsis, see Vellamo 



ruedemanni, see Vellamo 



semiconvexus, see Pomatotrema 



trentonensis, see Vellamo 

 Clitambonitidae, 17, 22, 27, 33, 35, 37, 42, 48, 110 

 Clitambonitin.-e, 107, 113 

 Clorinda, 162, 163, 165, 166, 171, 178 



becsciensis, see Stricklandia 



fornicata, see Barrandella 



ventricosa, see Barrandella 

 cljnie (Heterorthis), 40,* 137 

 coejTnanensis (Gypidula), 174 



prognostica (Gypidula), 174 

 colbiensis (Platystrophia), 65 



mutata (Platystrophia), 65 

 coUctti (Conchidium), 181 

 coloradocnsis (Billingsella), 41, 48, 49 

 Columbia (Pla^siomys), 94 

 comis (Gypidula), 17+ 

 Commissure, 7, 19 

 complectens (Vellamo), 114 



albida (Vellamo), 114 

 compressus (Pentamerus), 178 

 compta ("Nisusia"), 46 



concava Holtedahl (Palxostrophomena), 100 

 concava Schmidt (Cyrtonotella), 77 

 concavoconvexa (Parmorthis), 129 

 concavus Pahlen (? Clitambonites), 113 

 Conchidium, 162, 163, 164,* 165, 166, 172, 178, 181 

 concinna (? Levenea), 123 

 conradi (Pionodema), 141 

 contractus (Entelctes), 146 

 Convexity, 7, 19, 165 

 convexus (Clitambonites), 113 

 cooperi (Parenteletes), 147 

 cora (Schizophoria), 143 

 cornuta (Gypidula), 174 



parva (Gypidula), 174 

 corpulenta (Dalmanella), 120 

 corrugatus (Pentamerus), 178 

 corrjTillensis (Platj-strophia), 65 

 Costaa, 7 



costalis (Hesperorthis), 86 

 costata (Platystrophia), 66 

 costata (Productorthis), 82 

 Costell^e, 7 



craigensis (Skenidioides), 72 

 crassa (Platj-strophia), 66 

 crassicosta (Orthis), 76 

 crassicostata (Parmorthis), 129 

 crassicostella (Planidorsa), 101 

 crassiplica (Plat>-merella), 183, 184 

 crassiplicata (Cyclocoelia), 64 

 crassoradius (Conchfdium), 181 



crispa (Glyptorthis) , 90 

 crispata (Glyptorthis), 90 

 Crura, 7, 37 

 Crural fossettes, 7, 25 



plates, 7, 165 

 Cruralium, 7, 39, 166 

 cumberlandix (Rhipidomella), 133 

 cumberlandicum (Conchidium), 181 

 Cumings, E. R., 55, 67, 68, 131 

 cumingsi (Platystrophia), 65 

 Cycloccei.ia, 58, 64 

 Cyclococliinas, 56, 58, 64 

 Cyclospira, 6, 27 

 cylindricus (Pentamerus), 178 

 CvMBiDiUM, 29, 166, 178, 183 

 cypha (Platystrophia), 66 



arcta (Platystrophia), 66 



bellatula (Platystrophia), 66 



tumida (Platystrophia), 66 

 Cyrtonotella, 74, 77 



Dalmanella, 33,* 36, 58, 39, 119, 120, 133, 135 



bellula, see Pionodema 



carinata epsilon, see Cariniferella 



cimex, see Platyorthis 



circularis, see Pionodema 



concavoconvexa, see Parmorthis 



conradi, see Pionodema 



crispata, see Glyptorthis 



danbyi, see Thiemella 



deshayesi, see Mystrophora 



edgewoodensis, see Wattsella 



electra, see Archjeorthis 



Ixvis, see Archararthis 

 major, see Archasorthis 



elmira, see Cariniferella 



fairmountensis, see Heterorthina 



lucia, see Platyorthis 



macra, see Levenea 



perelegans, see Isorthis 



planoconvexa, see Platyorthis 



pygmaea, see Isorthis 



rockhousensis, see Isorthis 



springfieldensis, see Parmorthis 



sub^equata, see Pionodema 

 gibbosa, see Doleroides 

 perveta, see Doleroides 



Virginia, see Cariniferella 



waldronensis, see Parmorthis 



wemplci, see Finkelnburgia 

 Dalmancllacea, 22, 43, 119 

 Dalmanellid.-c, 34, 42, 119, 125, 137 

 dalyana (Rhipidomella), 133 

 danbyi (? Thiemella), 136 

 dartae (Orthostrophia), 71 

 daunus (Archxorthis), 81 

 Davidson, T., 66, 92, 103, 104 

 davidsoni Billings (Stricklandia), 187 

 davidsoni Verneuil (Hesperorthis), 86 

 Davies, A. Morley, 14 

 Dayia, 6, 27 

 daytonensis (Platystrophia), 65 



laurelensis (Platystrophia), 65 

 daytonensis (Glyptorthis), 90 



