INDEX 479 



Ptychaspis — Continued. page 



miniscaensis (Owen), listed from Franconia formation 357 



speciosus Walcott, described 272 



figured, pi. 43, figs. 16-19 ^92 



compared with Ptychaspis granulosa (Owen) 273 



Dikdocephalus lodensis (Whitfield) 273 



from Hoyt limestone, named and discussed 253 



from Hoyt quarry fauna 252 



in synonymy 272 



hsted from Potsdam-Hoyt fauna 254 



striata Whitfield, listed from Franconia formation 357 



new species, listed from St. Lawrence fauna 356 



sp. undt., listed from Jordan formation 355 



sp., listed from locality 113 360 



with St. Lawrence fauna 35*5 



Ptychoparia Corda, genus named 267 



appendages of 190 



associated with Eldonia ludwigi 50 



association of, with Conokephalina 362 



compared with Olenopsis 241 



Olcnopsis ? agnescnsis 242 



from Ottertail formation 230 



listed in stratigraphic section 337, 338 



relation of Conokephalina to ... 3^7 



relation to Olenopsis 239 



f annectans Walcott, related to Ptychoparia niinuta 268 



.? batia Walcott, genotype of Chiiangia 84 



figured, pi. 15, figs. 3, 3a 104 



(=Chuangia batia (Walcott)), former and present generic 



reference 71 



? binodosa (Hall), listed with St. Lawrence fauna 356 



f bronius Walcott (= Ptychoparia (Emmrichella) broinus (Wal- 

 cott) ), former and present generic reference .... 71 



calcifera Walcott (=Lonchocephalus), synonymic references 270 



listed from " Saratogian," Hoyt quarry 253 



? calymenoides Whitfield, listed from Eau Claire formation 358 



ecus Walcott (=: Liostracus krausei Monke), former and present 



generic reference 71 



chippewaensis Owen, listed from Eau Claire formation 358 



comus Walcott {^=^ Anomocarella comus (Walcott)), former and 



present generic reference 71 



constricta WdXcoit {=1 Ptychoparia {Emmrichella) constricta (Wal- 

 cott)), former and present generic reference... 71 



cordillercB ( Rominger ) , appendages of 190, 192 



associated with Peytoia nathorsti 57 



diadematus (Hall), listed from Franconia formation 357 



dryope Walcott {=: Conokephalina ? dryope (Walcott)), former 



and present generic reference 71 



