EXPLANATION OV PLATE C. 



Nal'Tilis hKk.wi Mi.]- tun, p. 817 



I. Lateral \ icw nf an inconiplete internal cast. 



licJ l-!aiik siiiid : SlirciL'sbiiry Kii'cr, ilK/). 

 ^-^- Lateral anil (I'lrsal views nf a Nmall internal cast, illustrated 

 l,y Wliitliel.l, 



4. Ventral \'ie\v nf a tragmenlary internal cast, ilhi'-trated b>' 



A\'hitlielil. 



Xavcsiiik iiunl : Marlhurn. 



5. Drirsal A'iew of a fraenicntary internal cast illustrated by 



Whitfield. 



I lonicrslniv}) iiiurl: Cnnk's l^ils iicar Tinti'ii Fails. 



1084 



