INDEX 545 



Pelagiclla — Continued. page 



willisi (Walcott), discussed as coiled gastropod 59 



(^=Platyceras ■millisi), generic references 15 



listed, Kiu-lung 65 



stratigraphic and geographic position 46 



sp. undt., listed 322 



Peltura, compared with Corynicxochus bubaris 315 



scarabceoidcs Wahlenberg, compared with Marjiiiiiia 401 



Pennsylvania, Lower Cambrian locality i2x 220 



Middle Cambrian locality lojd 178 



Millardia in 164 



Upper. Cambrian locality 107k 165 



pertexa, see Gallatinia. 



Phacopinse, compared with Norwoodidse 168 



pholus, see Lonchocephalus. 



Pilgrim limestone, described 269 



Beaver Creek section 271 



Little Belt section 273 



Pilot Knob, Adams County. Wisconsin, Upper Cambrian locality 99a. .. . 199 

 pinnaformis, see Lingulepis. 



Pinnatopora sp., identified from Half Moon Pass locality 276 



Pioche, Nevada, Middle Cambrian locality 31 344 



t3'pe locality of Chisholm shales 409 



Pioche formation, Lower Cambrian locality 31a 205, 209 



Planolites corrugatus Walcott, figured, pi. 21, fig. 8 152 



associated with Bcltina danai 152 



discussed 98 



superbus Walcott, figured, pi. 21. fig. 9 152 



associated with Bcltina danai 152 



discussed 98 



? listed, Indo-China 13, 62 



Platyceras chromis Walcott {:=Pclagiclla chronus), generic references.. 15 



clytia (= Pelagiella clytia), generic references 15 



pagoda (^= Pelagiella pagoda), generic references 15 



primcEvum Billings, listed 317 



li'illisi (^ Pelagiella Tmllisi), generic references 15 



{^Raphistoma broggeri) , listed, Lai-wu 10 



Platycolpus 'Rd.ymonA ? (=Dolichonictopus (f) gibberulus BiWmgs) . . . . 359 



Plectorthis kayseri, listed, Shan-tung and Shan-si 71 



pleyia, see Lonchocephalus. 



Pogonip, f acies, compared Tsi-nan 42 



Pole Creek, Montana, Middle Cambrian locality 352 



Poliella, new subgenus, described 349 



compared with Dolichometopus 359 



genotype, 5a//!3'Mn.yc"K.j (Poliella) a 11 teres Walcott 349 



observations 349 



species, named 349 



compared 349 



stratigraphic range and geographic distribution 330 



see Bathyuriscus. 



