EXPLANATION' OF PLATE XXXIX. 



Inoceramus quadrans W'biififlcl p. 426 



1. View ("if tlu' lyjic siiLx-iiiKH. (After WliitficLL ) 



Mcrchaitti'iUc clay-marl'.' ; near Burhni^toir 



iNOCERAltUS CONFERTIII-ANXULATL'S RoeilH.r p- 4-7 



2. View of an iiicnnipLlu specimen. 



Mcrcliiinlvillc clay-marl: near MaUrwaii, iioo'). 



3. \'ie\v of an incimipLtc specimen illustrated liy \A'liilheld. 



Xaz'csinlc mail: Hohndrl. 

 4-5. Two views of a left \al\e. I .Vfler Whitfield.) 

 Nai'csiiik marl: Mai'lboru. 



960 



