OLENELLUS AND OTHER GENERA OF MESONACID^ 



Callavia — Continued. page 



broggcrl ( Walcott) 279, pi. 27, figs. 1-6 ; pi. 44, fig. 4 



Matthew, in synonymy 279 



compared with Callavhr burn' 281 



Callavia callavci 282 



Callavia crosbyi 284 



Holinia kjcnilH 276 



Peachella iddingsi 344 



Wanncria 297 



Wanneria zvalcottantis 303 



hypostoma of 244 



mentioned 245, 246, 247, 276, 277, 278, 293, 302 



stratigraphic distribution tabulated 251 



burri, new species 280, pi. 28, figs. 9-10 



compared with Callavia broggeri 281 



Callavia cartlandi as representatives of new? genus. . . . 283 



Callavia crosbyi 281, 284 



Callavia ? nevadensis 285 



mentioned 247, 276, 278, 302 



stratigraphic distribution tabulated 251 



callavei (Lapworth) 282, pi. 42, figs. 1-2 



Matthew, in synonymy 282 



compared with Callavia broggeri 282 



Wanncria zcalcottanus 303 



mentioned 247, 276, 283 



stratigraphic distribution tabulated 251 



cartlandi Raw MSS 282, pi. 42, figs. 3-4 



compared with Callavia biirri as representatives of a new ? genus 283 



Wanneria zvalcottantis 283 



mentioned 247 



stratigraphic distribution tabulated 251 



crosbyi, new species 284, pi. 28, figs. 1-8 



compared with Callavia biccnsis 278 



Callavia broggeri 284 



Callavia burri 281, 284 



Olenellus logani 334 



hypostoma of 244 



mentioned 247, 276, 278, 281, 302 



stratigraphic distribution tabulated 251 



nevadensis, new species 285, pi. 38, figs. 12-14 



compared with Callavia burri 285 



Olenellus gilberti 285 



geographic distribution of 253 



mentioned 247, 328, 345 



stratigraphic distribution tabulated 251 



canadensis, see Olenellus. 

 cartlandi, see Callavia. 



Castle Mountain, fossils from 319 



Cephalacanthus Lapworth, in synonymy 274, 275, 286 



17 — w 



