II^DEX. 



(Synonyms are in italics.) 



■ Page. 



abrupta, Corynotrypa 65 



acanthophora, Orbipora 255 



Acanthopores 48 



Acknowledgmente - 2,3 



Actinostroma 175 



sedilis, Cladopora 242 



sedilis, Eridotrypa 242 



minor, Eridotrypa 245 



xdilis, Monticulipora 242 



alveolaris, Calamopora 342 



Amalgamata 177, 178 



American and Baltic Ordovician Bryozoa, 



Summary of 32 



ampla, Callopora 329 



Amplexopora 178 



Amplexopora winchelli 278 



Araplexoporidse 178, 265 



Anaphragma 178,297 



mirabile 298 



cognata 299 



angulata, Retepora 169 



angulo?a, Arclicopora 341 



annulata, Dittopora 304 



annulatus, Chscietes 304 



Anolotichia 91 



brevipora 94 



impolita 97 



ponderosa 91 



revalensis 95 



rhombica 92 



sacculus 98 



antheloidea, Stellipora 221 



Anthozoa, List of 19 



antiqua, Gorgonia 175 



apiculata, Millepora 344 



apiculatus, Chxtetes 344 



apiculatus, Dianulites 344 



apiculatus, Orhitulites 344 



apsendesoides, Stellipora 223 



aracTinoidea, Aulopora 60 



arachnoidea, Stomatopora 60 



arborea bispinulata, Monticu lipora 179 



Monticulipora 179 



Archeopora 340 



angulosa 341 



lamella 340 



punctata ^ . . . 106, 341 



radians 342 



Arctic America, Ordovician and Early Silu- 

 rian strata of , 32 



armatum, Arthroclema 151 



Arthroclema 150 



armatum 151 



pulchellum 150 



Page. 



Arthronema 147 



Arthropora 119 



simplex 120 



Arthrostylidge 146 



Artbrostylus 147 



obliquus 148 



aspera, Spatiopora 106 



Aspidopora 177 



Atactopora 178 



Atactoporella 177 



A tactoporella crassa 193 



Aulopora S9 



araclinoidm 60 



Aulopora sp 68 



Baltic and American Ordovician and Early 



Silurian Bryozoa, Summary of 18 



Baltic area, Paleontology of. 19 



Baltic Ordovician and Early Silurian Bryo- 

 zoa, Table showing range of SO 



Baltic Sea area, General Geology of 4 



Baltic Sea area. Map of 5 



Baltic Sea area, preservation of fossils in 4 



barberi, Corynotrypa 63 



batheri, Hemiphragma 296 



Batostoma 178, 272 



Batoftoma 281 



Batostoma fertile 274 



circulare 275 



granulosum 280 



Batostoma irrasa 284 



Batostoma raagnopora 272 



mickwitzi 276 



winchelli 278 



Bpinulosum 279 



Batostomellidae 178, 240 



bicornis, Ceriopora 317 



Dianulites 317 



bicornis, Diplotrypa 317 



bifida, Pseudohornera 173 



Mfida, TMmniscus 173 



bifurcata, Pachydictya 143 



bifurcata, Stictopora 143 



Black River group 27 



Blue clay and associated strata 10 



bonnemai, Graptodictya 122 



boreale, Mitoclema 69 



Borkholm Bryozoa, List of 17 



limestone, F2 16 



Borkholrniensis, Rhinidictya? 143 



Brachiopoda, List of 20 



brevipora, Anolotichia 94 



Bryozoa in Cambrian strata 10 



Bryozoan faunas, American Black River and 



Trenton 27 



375 



