GENERAL INDEX. 125 



Peronopora Nicholson VIII, 370, 412 



decipiens (Borainger) Vni,370 



Petalodontidae Newberry and Worthen 11.31 



Petalodus Owen 11,31,35,47,73; IV.355; 71,367,377,394,397,403,413 



acuminatus Ag 11,32,37; VI, 396 



alleghaniensis Leidy 11,32; VI, 396 



( " )bellulus St. J. & W VI,397,398* 



curtus? N. & W VI.394* 



destm.-tor N. & W II,32,35*,46; VI,3% 



bastings! Ow 11,32; VI.396 



hybridus 8t J. & W VI, 394* 



hevissimus Ag VI, 399 



linguifer X. & W 11,32,37*; VI.394,400 



proximus St. J. & W VI.395* 



Petalorhynchus Agassiz n, 32,40; VI, 405, 414 



distortus St J. & W "VI, 406* 



pseudosagittatus St J. & W : VI, 405* 



psittacinus Ag 11,32; VI, 408 



sagittatus Ag n,32,40; VI. 406, 408 



spatulatus St. J. & V? VI, 408* 



striatus N. & W 11,32,40*; VI, 406 



Petalotrypa Ulrich VIIE, 377,453 



compressa Ubr VIII, 377, 454* 



delicata Ulr Vm,454* 



Petigopora Ulr VIII, 372 



gregaria Ulr VHI.372 



Petrodus McCoy 11,70; IV,369; VI.314 



acutus N. & W II, 72* 



occidentalis N. & W. 11,70*; IV.370; VI, 461 



patelliformis McCoy 11,71 



" (?) pustulosus N. & W IV, 369* 



Petrospongiae II, 145,233,262 



Phacelopora Ulrich VIII, 368,406 



constricta Ulrich Vni, 406* 



pertenuis Ubrich VIH.368, 406* 



Phaceloporidae Ulrich Vni,368 



Phacops Emmerich 111,447 



rana (Green) Ill, 447* 



Phaenopora Hall Vm, 349, 392. 520 



constellata Hall VIH,392t 



expansa HaU and Whitfleld Vin,391,392t- 



explanata Hall VED,392 



( " fenestelliformis (Nich. sp.) Ulrich) Vin,526* 



lindstroml Ukich VIII, 392t 



( " ) multipora Hall VHI,520 



Phaenoschisma Etheridge and Carpenter VII,353,356 



verneuili Eth. & Carp VII, 356 



Pharetrones Zittel VIII.239 



Phi.lipsia Portlock : V.525.612 



bufo M. & W V.528* 



( " ?) eUiptica M. & W 111,462 



portlocki M. & W V.525* 



sangamonensis M. & W V.615* 



scitula M. & W V.612* 



Philocrinus de Koninck 11.315; V.446 



" (?)antiauus M. & W V.449 



( " Jconoideus M. & W II,318t 



