NO. 13 DIKELOCEPHALUS AND OTHER GENERA 



Dikelocephaltis — Continued. page 



t limbatus Hall — Continued. 



in synonymy 369 



listed from locality 78 361 



from locality 78b 361 



under description of genus 367 



with St. Lawrence fauna 356 



cf. limbatus Hall, in association with Saiikia fcpincnsis 382 



listed from Jordan formation 355 



lodensis Whitfield, genotype of Saukia 374 



magnificus (= Apatokcphaliis ??), species referred by Billings.... 365 



megalops {^ AnomocareUa), species referred by Billings 365 



miniscacnsis (= Piychaspis), species named by Owen in 1852 365 



referred by Hali to Ptychaspis 2i^ 



minnesotensis Owen, described and discussed 369 



figured, pi. 60, figs. 1-8 392 



pi. 61, figs. 1-7 394 



pi. 62, figs. 4-6 396 



pi. 66, fig. I 404 



as now restricted 360 



compared with Dikeloccphalus^ ? dalyi 367 



Dikclocephalus f limbatus 369 



Dikelocephahts te.vanus 372 



Dikclocephalus vanhornei 372 



Dikclocephalus sp. undt. ( footnote) 391 



Saukia 370 



comparison of size with Saukia 374 



doubtful identifications 370 



earliest illustrations of 365 



form of dorsal shield possibly like that of Saukia crassimar- 



ginatus . . .'. 347 



formation and locality 370 



fragments of, associated with Saukia pepinensis 370 



genotype of Dikclocephalus 364 



greatest development of 356 



in association with Saukia pcpinoisis 381 



in synonymy 369 



listed from localities 85, 86, and 113 360 



from locality 78b 361 



with description of genus 367 



with St. Lawrence fauna 356 



size of, discussed 364 



species named by Owen in 1852 365 



minnesotensis van, described and discussed 371 



figured, pi. 61, fig. 4 394 



compared with Dikclocephalus minnesotensis 371 



formation and locality 371 



listed with description of genus 367 



misa Hall, referred to genus Conokephalina 3^7 



{^= Coiiokcphalina), species referred by Hall 365 



