EXPLANATION OF PLATE LXXX\'L 



KaSSA Cl.iiJuiSA Calih p. 73S 



1. Lateral \-ii.'W ^f a MiiiKAvhal criisliei.l internal eaht. 



]]'cni:ihih sand: r.car Marlbnr,,. U30). 



PVR'lI'SlS klCMARti^llXI ( TlKiiUe}" I p. 739 



2. Lateral view :jf a sni:i,ll internal east. 



Xavciiiil; marl: .-lllanii: Hi\^hlands. iioS). 

 3-4. Lateral ami wrtical views nf a jilaster cast fnim a natural 

 niimlil I'artially shewing the external characters of the 

 shell. 

 5. Lateral \'iew cf tlie inlerml cast nf the same imlividnal. 



ilcrcJianlvUlc cluy-niurl : near Mataicaii. iioi). 



PviiOPSIS PVKUt.niDEA ( Ciabh ) p. 742 



6-7. Twi.j lateral views cif the type specimen. 



Xavcsiiih- r,nr< I : I! urliiigtiJii Cinnily. 



PMsripsis SEi'TE.vii,ik.\'r.\ Gabh p. 744 



8-10. A'erlical am! two lateral views of an internal cast, illustrated 

 as /'. lU-rhilii l.iy Whilfield. 



XiiZ'rsiiiL- marl: I'rcclinld 



Pvri(ips:s PLANi:ii.\i:e';ix.\T.\ ( W liitfield I p. 745 



li-i-i. Three lateral views and one \-ilieal \dew of the t\pe specimen. 

 Xavcsiiil; marl; Crosswicks Creek. 



io=;6 



