EXPLANATTON OF PLATE LXXXV. 



PEkIssi)[.AX iiit;1a (Cal)li) p. 730 



I. Lritcral view nf an internal cast. 



Xaz'i'siiik iJHU'l : M iillicij 1 1 ill. 

 2-3, Two lateral \ie\\s i-f an niterna! ca^t. 



Xavanik mail: near Crawfurds C'iriicr. (uO'). 

 4-5. Two lateral \'ie\\s of nne rif the tyjies of 1' rilnnidca tit'csa 

 Wliitf. 



Nai'csiiik marl: Cr:isswirks Creek. 



Perissolax tkivoia'a ('.alili, p. 731 



6. Lateral view nf the tyjie s]iecinien. 



r iiieeiilirzett luaesaiul. Tiinlwr Creek. 



Pyrifusus meekt Whitfield p. 73J 



7-8. Two lateral views of a nearly perfect internal cast. One of 

 the type siiecnnens. 



A'u\'esiiik marl; .Malliea Jlill. 



PyRiFfSL"s xii'i.ETC.xExsis (Oalili) p. 733 



9. Latei'al \']ew of an niternal cast, 

 lo-n. Two lateral \iews nf another nhernal cast. 



Na7'esiiik marl; .MiiHiea Hill. 

 12-13. Twii lateral views i,jf the type siiecinien of I'yrifusns euneits 

 Whitf. 



.\u;'esiiik marl; Freehohl. 

 14-15. Two lateral views of ihc type specimen of I-ripaeliya f'dliidi- 

 uafoniiis Whitf. 



Navesink marl: Crusszeteks Creek. 



Pyrifusus err.\ticus Whitfield p. 736 



16. Lateral \"iew "i an internal cast. 



Cliffie^'.iJ elay; Clilfieaad reiiil. ( /o s ) . 



Pyrifusus maci'^aklaxth Wliitfield p. 735 



17. Lateral \'iew "f ,an niternal cast. 



Natesink mail; Miilliea J J ill. { 160) . 



HEtlCnKI-lViXClIUS .lERSEVEX'SIS n. sp. p. 7:57 



18. Plaster cast of a natural mould r.f the exterior of this species. 

 ig-20. Two lateral ^icws of the internal cast nf the same individual. 

 21-22. Two lateral \iews of another internal cast. 



Cliffwaad elay: Cliffieeed I'oinl. (185I. 



1054 



