EXPLANATION t)F PLATE NCT\'. 



A^OLUTOMORPHA CONRADl ( ("',abb ) 



]-2. Two lateral views i<{ a very lirnail iiUernal cast. 

 Cliffzciiod clay: Clilfwoud I'ljiiit. {105). 



3. Lateral view of one of the type specimens of J', gahbi 



Whift. 



Xa-Ci'siiik marl: Miilllca Hill. 



4. Lateral view of one iif the type Sjieciniens of / ". gabbi. (After 



\Mntiieltl. ) 



A'az'csliik marl, Holmdcl. 



5. Lalca'al \iew of an internal east pre^erxing Sijnie of the sur- 



face markings, 



Nai'csiiik marl: }lulllca Hill [ihg). 



6. Lateral view of a small internal cast illustrated by Whitfield 



as /'. iiahhl. 



Navcsinh mail: Marllh.rn. 



p. 780 



