Manchester Memoirs, Vol. L V. {lYo. 11> 



Plate. 



in. 



IV 



VI. 



\ II. 



\"iii. 



IX. 



Fig-. I. = M. Uiuala flank ( AI . M. ). 

 ,^ II. = J/, liueata area (iM.M..). 



,, III. = Cast from impression from the St<:)nesfield slate, laljelled 

 T. Moretoni (M.M.). 

 1\'. Cast of young T. ^I'hbosa Portland st<:)ne (M. }.!.). 



A I. .-(Trowth stages of 7. ^il'bosa from Portland stone (M.M.). 

 VII. J 



VIII. Adult form, labelled 7'. giMosa (M.M.). 

 IX. 7". Dauiouiaua & (M.M.). 



