INDEX 495 



Corynexochus— Continued. ^^^^ 



(Bonnia) Heldensis — Continued. 



discussed 307, 3o8 



Rocky Mountain representative of Corynexochus (Bonnia) 



parvulus 2-° 



synonymy 327 



(Bonnia) parvulus (Billings), described 328 



figured, pi. 57, figs, i, ib-c ; pi. 64, fig. 6 436, 451 



associated fauna named 329 



chaxacterized 320 



compared with Corynexochus brennus 3^4 



Corynexochus senectus 321, 328 



Corynexochus (Bonnia) busa 326 



Corynexochus (Bonnia) heldensis 327 



Dorypyge and Pagodia 328 



Marjumia callas 402 



Menocephalus salteri Devine 329 



discussed 307, 308 



listed 322 



Matthews' variety angifrons 329 



represented in Rocky Mountain fauna by Corynexochus 



(Bonnia) Heldensis 328 



synonymy 32o 



Coscinocyathus Bornemann, cited, China 7i 



discussed under Anthozoa 58 



calathus, listed, Siberian Cambrian 8 



campanula, listed, Siberian Cambrian 8 



cancellatus, listed, Siberian Cambrian ° 



corbicula, listed, Siberian Cambrian 8 



dianthus, listed, Siberian Cambrian 8 



elongatus, listed, Siberian Cambrian 8 



elvira Walcott, cited, China 7i 



listed, lower Kiu-lung ^4 



stratigraphic and geographic position 44 



irregularis, listed, Siberian Cambrian ^ 



vesica, Hsted, Siberian Cambrian 



Coulouma, " Montagne Noire," Herault, France, Middle Cambrian local- 

 ity I52d 319 



Craigs Mountain, Coosa Valley, Cherokee County, Alabama, Middle Cam- 

 brian locality 90 near 178 



Craniella ? ? sp. Walcott (z=Discinopsis sulcatus), generic references. . . 15 

 crassa, see Shantungia. 



Crepicephalus Owen, genus described ^99 



American species now referred elsewhere 204 



cephala of species compared 200 



cited, Gottsche 7 



compared with Ptychoparia 200 



comparison of species 203 



equivalent to subgenus of Loganellus 202 



