SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 53 



PAGE 



Bathyurus, eye of compared with that of Liinulus 239 



Beecher, C. E., bibliographic references 372 



definition of Opisthoparia 235 



on facial sutures of OlaicUus 242 



on Olendloidcs 347 



on the Paradoxinje 314 



Beltina, a fresh water form 252 



Bernard, H. M., bibliographic reference 372 



on the eyes of Liniitliis and Apits 239 



Bic, fossils from 279, 339 



bicensis, see Olcncllus. 



Big Cottonwood Canyon, fossils from 330 



Billings, E., bibliographic references 372 



Billingsella bhna, mentioned 300 



highland cnsis, mentioned 345 



billingsi, see Hyolithes. 

 bivia, see Billingsella. 



Bj orkelunda, fossils from 264 



Bonne Bay, fossils from". 266, 310 



Botsfordia ccclata, mentioned 279 



Brantevik, fossils from 34^ 



Brogger, W. C, bibliographic reference 372 



broggcri, see Callavia. 



Brontcus, intergenal spines of 237 



Burr, H. T., bibliographic reference 372 



burri, see' Callavia. 



Butts, Charles, mentioned 308 



ccelata, see Botsfordia. 

 callavei, see Callavia. 



Callavia Matthew 274 



anterior glabellar lobe in 242, 243 



compared with Holmia 276, 288 



JVanncria 297, 299 



delimitation of genus 247 



development of, shown in diagram 249 



geographic distribution of 253 



in synonomy 275 



mentioned 236, 248, 250, 295 



note regarding proposal of term 276 



species referred to the genus listed 232 



stratigraphic distribution tabulated 251 



stratigraphic range 276 



zone, definec 250 



bicensis, new species 277, pi. 41, figs. 9 and 9a 



associated fossils 279 



compared with Callavia crosbyi 278 



mentioned 247 



segmentation of ccphalon 238 



