INDEX TO VOLUME VIII. 703 



PAGE. 



Devonian System, Sponges of 218,233,215 



Dictyophyton Hal) 216.218,236 



abacus Hall 236 



annulatum Hall 236 



baeulum Hall 236 



cinctum HalL 23C 



conradi HalL 235 



cylindrieum "WhitfieM 236 



fenestratum Hall 236 



filitextile Hal! 236 



hamiltonense Hall 236 



irregulare Hall ^36 



nodosum Hall . f 236 



parallelum Hall 236 



patulum Hall 236 



prismaticum Hall 236 



? redfieldi Hall 236 



rude Hall 237 



sacculus Hall 237 



telum HalL 237 



tenue HalL 2:~ 



tuberosum Conrad 237 



Dietyospongidae Hall 236 



Dystactospongia Miller 215,217.23 1 



insolens S. A. Miller 239 



minima Ulrich 23.1 



minor Ulrich and Everett 239,278* 



rudis ririch and Everett 239,279* 



Ectenodictya Hall 237 



burnngtonensis Hall 237 



eccentrica Hall 237 



expansa Hall 237 



implexa HalL 237 



Edriospongia Ulrich and Everett 217,235,271 



basalis Ulrich and Everett 23.'. 272* 



Eocoryne Matthew 240 



' ' gemina Matthew 240 



Eospongia Billings 217, 234 



rremeri Billings 234 



varians Billing? 234 



Ethmophyllum Meek .' 216,240 



minganense Billings, sp 240 



profundum Billings, sp 240 



rarum Ford, sp 240 



rensselaericum Ford, sp 240 



whitneyi Meek 240 



Euretidae Zittel 22 



Fenestella, associated with sponges 2 '5,249 



Fossihzation of Sponges 212 



Geological Distribution of Sponges 211,215 



Heterospongia Ulrich 21 " . C " _ 



aspera Ulrich 239 



knotti Ulrich 236 



subramosa Ulrk-h . . 239 



