460 INDEX 



Marrclla — Continued. page 



splendens — Continued. 



compared with Apus and Lcpidurus 192 



compared with the Trilobita (footnote) 162 



epipodite and protopodite of 159 



interior structure 193 



stratigraphic position and association 153 



mentioned 149, 151, 152 



Marrellidse, new family described t iga 



classification of 154 



Maiherella Walcott, new genus described 263 



compared with Sccevogyra 263 



genotype, Maiherella saratogeiisis 263 



geographic distribution 263 



stratigraphic range 263 



saratogeiisis (Walcott), described 264 



figured, pi. 41, figs. 18-21 288 



Cambrian facies questioned 255 



genotype of Maiherella 263 



listed from Potsdam-Hoyt fauna 254 



previously referred to Billiiigsia and Trochus 264 



in synonymy 264 



matheri, see Ptychoparia. 



Matthevia Walcott, genus named and in synonymy 265 



variabilis Walcott, species named and description referred to 265 



figured, pi. 42, figs. 1-15 290 



listed from Potsdam-Hoyt fauna 254 



from " Saratogian," Hoyt quarry 253 



in synonymy 265 



Matthew, G. F., cited on Orthotheca cornigata 124 



cited on Paleozoic tube-Hke fossils 122 



discussion of Dikelocephahis by, cited 366 



Maxillae, Branchiopoda and Malacostraca 159 



Maxillulse, Branchiopoda and Malacostraca 159 



Mayer, A. G., cited on medusa-like holothurian 50 



media, see Opahinia. 



Medusa, from British Columbia 42 



Medusae, second paper, mentioned 148 



Mcdusina .costata (Torell), compared with F\'yto{a nathorsti 57 



megalops, see Dikelocephalus. 



megalurus, see Anomocare and Liostracus. 



melie, see Agraiilos and Inouyia. 



Memoir on Cambrian faunas of China, mentioned 73 



Mendota formation, in provisional classification 354 



Mendota limestone, listed with Upper Cambrian of Wisconsin 353 



Menocephalus abderus (Walcott) (=iSo!eiioplettra abderus Walcott), 



present and former generic reference 72 



acantha (Walcott) (=Solenopleura acantha Walcott), present and 



former generic reference 72 



acidalia (Walcott) (=SolenopIeura acidalia Walcott), present and 



former generic reference 72 



