INDEX 



Crepicephalus — Continued. page 



upis, new species, described 218 



figured pi. Z2), figs. 4, j\a-d 248 



compared with Crepicephalus liliana and C. coosensis 218 



formation and locality 218 



listed 204 



stratigraphic range 202 



? wisconsensis Owen, in synonymy 198 



referred to Lonchocephalus 204 



related to L. hamulus 188 



sp. undt. (i), described 218 



figured pi. 2^, figs. 4, 40 246 



compared with Crepicephalus iowensis 218 



formation and locality 218 



sp. undt. (2) , described 218 



compared with Crepicephalus camiro 219 



Crepicephalus iowensis 218 



formation and locality 219 



undt. spp., stratigraphic range 202 



listed 204 



{Bathyurus?) angulatus Hall and Whitfield, referred to Ptychoparia 



(Emmrichella) 204 



(Loganellus) granulosus Hall and Whitfield, referred to Inouyia. . 204 

 (Loganelhis) haguei Hall and Whitfield, referred to Ptychoparia. . . 204 

 (Loganellus) maculosus Hall and Whitfield, referred to Ptychoparia 204 



(Loganellus) montanensis Whitfield, discussed by Whitfield 202 



referred to Ptychoparia 204 



(Loganellus) nitidus Hall and Whitfield, referred to Ptychoparia. . 204 



(Loganella) planus Whitfield, referred to Ptychoparia 204 



? (Loganellus) quadrans Hall and Whitfield, referred to Ptycho- 

 paria 204 



(Loganellus) simulator Hall and Whitfield, referred to Inouyia... 204 

 (Loganellus) unisulcatus Hall and Whitfield, referred to Ptycho- 

 paria 204 



Ctenocephalus exsulans Linnarsson, compared with Acrocephalites 176 



Cub Creek, Hamblen County, Tennessee, Upper Cambrian locality 



119 20s, 215, 218 



Curtice, Cooper, acknowledgments 169 



collections by 210 



Daly, R. A., acknowledgments 228 



danace, see Crepicephalus texanus. 



Dearborn River section, Powell County, Montana, Lower Cambrian 



locality 4v 222 



Dicellomus politus Hall, associated with Lonchocephalus chippcwaensis. . 256 



Dikelocephalus, species referred to by Owen 202 



and other genera of the Dikelocephalinse, pubUcation 160 



? dalyi Walcott, associated with Tsinania elongata 228 



latifrons Shumard, in synonymy 198 



F iowensis Owen, discussed 202 



genotype of Crepicephalus 201 



in synonymy 207 



