264 



INDEX 



morrowensis (Platystrophia), 65 

 munsteri (Conchidium), 181 

 Muir-Wood, H. M., 158 

 mullochiensis (Mendacella), 127 

 multicosta (Vellamo), 114 

 multicostata Dunbar (Gypidula), 174 

 multicostatum Hall (Rhipidium), 181 



MULTICOSTELLA, 94, 98 



multilirata (Stricklandia), 187 



multiplicata Bancroft (? Wattsella), 125 



multiplicata Hall and Clarke (Parastrophinella), 169 



multisecta Meek (Dalraanella), 120 



multistriata Hall (Schizophoria), 143 



multistriata Roemer (Sieberella), 175 



muralis (Pomatotrema), 109 



Muscle impressions, 9, 30, 39 



musculosa (Rhipidomella), 134 



Myophore, 9, 35 



Mystrophora, 17, 22, 39, 119, 131 



Mystrophorids, 39, 119, 131 



nautes (? Nisusia), 45 



navis (Dalmanella), 120 



neglecta Barrande (Isorthis), 150 



neglecta James (Plectorthis), 58 



nettelrothi Foerste (Dolerorthis), 89 



nettelrothi Hall and Clarke (Conchidium), 181 



nevadensis (Rhipidomella), 134 



newsomensis (Orthostrophia), 71 



newsomensis (Rhipidomella), 134 



newtonensis (Finkelnburgia), 55 



nicklesi (Eridorthis), 91 



NiCOLELLA, 24, 74, 77 



nikschitschi (Enteletella), 148 



nisis (Schizoramma), 87 



Nisusia, 26, 27, 34, 44 



Nisusiida:, 37, 43, 44, 50 



nitida (Platystrophia), 65 



nodocostata (Ptychopleurella), 92 



Noetling, F., 103 



NoETLINGIA, 101, 105 



nonus (Clarkella), 156 

 norwoodi (Stricklandia), 187 

 Notothyrial platform, 9, 34, 39 

 Notothyrium, 9, 23 

 Novak, O., 177 



nucella (Lycophoria), 105, 106 

 nucleolata (Gypidula), 174 

 nucleus (Gypidula), 174 

 nundina (Syntrophina), 156 

 nympha (? Eoorthis), 51 

 nysius (Rhipidium), 181 



oakensis (Polytoechia), 110 

 oblata (Rhipidomella), 134 

 oblongus Pander (Clitambonites), 1 13 

 oblongus Sowerby (Pentamerus), 162, 178 



subrectus, see subrectus 

 obsoletum (Conchidium), 181 

 obtusa (Productorthis), 82 

 obtusus (Hemipronites), 116 

 occasus (Rhipidomella), 134 

 occidentale Hall 18 52 (Conchidium), 181 

 occidentalis Hall 1858 (Gypidula), 173, 174 



occidentalis Hall 1847 (Hebertella), 60 



sinuata (Hebertella), 60 

 occlusa (Isorthis), 150 

 ochus (? Eoorthis), 51 

 oehlerti (Enteletes), 146 

 Old-age characters, 42 

 Oligomys, 50, 53 

 Onniella, see Dalmanella 

 opercularis (Platyorthis), 135 

 Opik, A., 69, 79, 100, 112, 114, 117, 118 

 ops (Parastrophinella), 169 

 optatus (Brooksina), 183 

 orbicularis (Hemipronites), 116 

 oriens ("Nisusia"), 46 

 orientalis (? Nisusia), 45 

 Orientation, 18 

 oriskania (Schizophoria), 143 

 Ornamentation, 162, 165 

 Orthacea, 43, 154 

 orthambonites (Orthis), 76 

 Orthambonites crassicosta, see Orthis 



parvus, see Paurorthis 



rotundata, see Orthis 



trigona, see Paurorthis 

 Orthidje, 33, 34, 35, 37, 39, 42, 44, 48, 73, 94, 101, 119 

 Orthinx, 37, 74, 75 

 Orthis, 18, 21, 26, 32,* 35, 37, 40,* 74, 75, 86 



acton iae, see Nicolella 



{squivalvis, see Mendacella uberis 



annamitica, see Dinorthis 



anticostiensis, see Plasiomys 



apicalis, see Hesperorthis 



areola, see Mystrophora 



attenuata, see Heterorthis 



balclatchiensis, see Glyptorthis 



basalis, see Parmorthis 



bellarugosa, see Glyptorthis 



biforata, see Platystrophia 

 lynx, see Platystrophia 



bouchardi, see Ptychopleurella 



calligramma subplicata, see Schizoramma 



canalicula, see Isorthis 



canaliculata, see Levenea 



canalis, see Dalmanella 



carinata, see Cariniferella 



carleyi, see Retrorsirostra 



circularis, see Platyorthis 



concava, see Cyrtonotella 



concinna, see Levenea 



corpulenta, see Dalmanella 



costalis, see Hesperorthis 



crispa, see Glyptorthis 



davidsoni, see Hesperorthis 



decipiens, see Isorthis 



dimera, see Bilobites 



disparilis, see Hesperorthis 



dorsoplicata, see Fascicostella 



edgelliana, see Idiorthis 



eifelensis, see Aulacella 



elegantula, see Parmorthis 



ellipsoides, see Heterorthina 



emacerata, see Dalmanella 



euryone, see Archxorthis - 



