LIST OF ILLUSTRATIONS 



PLATES 



Facing page 

 New fossil land and frbsh-watek, mollusks from the Rettnosa 



FORMATION OF TeXAS 



By William B. Marshall 



1. New mollusks from the Reynosa formation of Texas 6 



Descriptions of new species of Foraminifeba of the genus 

 discocyclina from the bocene of mexico 



By Thomas Wayland Vaughan 



1. Discocyclina iceaveri and D. weaveri var. parvipapillata 18 



2. Discocyclina oristensis and D. perpusiUa 18 



3. Discocyclina cushmani 18 



4. Discocyclina zaragosensis and D. palenquensis 18 



5. Discocyclina cloptoni 18 



G. Discocyclina stephensoni 18 



7. Discocyclina palenquensis 18 



NoPvTH American species of the weevils of the Otiorhynchid 



GENUS MESAGEOICUS 



By L. L. Buchanan 



1. Mesagroicus herricki (Male). 2. M. elongatus (female) 14 



2. Parts of various species of Mesagroicus 14 



Three new land spiells of the genus Oreohblix from Arizona 

 By William B. Marshall 



1. New land shells of the genus Oreoheliw 4 



A NEW variety of the hexactinellid sponge Rhabdocalyptus 



DAWSONI (LAMBE) and THE SPECIES OF RhABDOCALYPTUS 



By H. V. Wilson and J. T. Penney 



1-2. A new variety of sponge 10 



New Lower and Middlei Cambrian Crustacea 



By Charles E. Resser 



1. Tuzoia retifera Walcott 18 



2. Middle and Lower Cambrian Crustacea 18 



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