xxiv 



CONTENTS. 





Page 



Martinia 



- 337 



Stringocephalus 



- 337 



Family II. Rhynchonellida 



- 338 



Rhynchonella - 



- 338 



Hemithyris - 



- 338 



Camerophoria - 



- - - 339 



Uncites - 



- 339 



Pentamerus - 



- 340 



Family III. — Product idee 



- 340 



Productus - 



- 340 



Strophalosia 



- 340 



Chonetes - 



- 341 



Aulosteges - 



- 341 



Leptsena 



- 341 



Davidsonia - 



- 342 



Orthis 



- 342 



Orthisina 



- 342 



Str nnli nm pn n _ 



- 343 



Calceola - 



- 343 



Family IV. — Craniadce 



- 343 



V>1 cllilcl - 



_ °.A A 

 - o44 



Family V. — Discinida 



- 344 



Discina - 



- 345 



Siphonotreta - 



- 345 





- - ■ o-to 



Family VI. — Lingulidce 



- 346 



Lingula - 



- 346 



Obolus .... 



- 346 



Order III. — Ivitdistje - - - 



Q/4 7 



- o4r/ 



Family I. — Radiolitidce 



- 347 



Radiolites - - - 



- 347 



{^Inrn'iTin — - - 



- 348 



Family II. — Hippuritidce 



- 348 



Hippurites - - - 



- 349 



Family III. — Caprotinadce - 



- 349 



Caprotina - - - 



- 349 



Caprinula - 



- 349 



Caprinella - 



- 350 



Explanation of Terms - 



- 351 



Index -------- 



- 359 



