KXPLANATIOX OF I-M. ATI-: XC\"II 



RiiSTF.I.i.ITKS NASL'Trs Cialili p. 786 



1-2. Two lateral views nf the t>-pe ^]itcimens. 



XavcsiiiL- marl : M^niiin'iilh L miiily. 



RnSTEI.r.lTI'> AKGULATl'S Wllllllelil, p. 7^7 



3-4. Twii lateral views ui the type speeimeii. 

 NiTL'i'siiiL' imii'L 



RdSTEIJ.ITF.S r.ICnNICL'S Whittielcl p. 78S 



5-6. T^vn lateral view's of an internal east. 

 7-8. Lateral \iews ejf two imperfeet casts. 



Maiitisijiiaii marl; Farmiiigjalc. 



TuitRicur.A i,i;ii,\ W'lntlield Ij. 790 



g. View of the type specimen 



Nai'i'siiih- laarl : I'rcchoUI. 



TuRRICL't.v KEli.KVi WhilfieM p. 791 



10. View of the type speenneii. 



Xai'cstiik laarl : frcrhalil. 



TuRRICOL.\ SC-\l..\RIl'OKMIS Whitfield p. 789 



11. View of the type speeimen. 



A'ai'csiiil; marl; Ili'Imdcl. 



I07y 



