PLATE 69. 



Fig. 1. 672. 1. LicHAs BOLTONi. (Pag. 311.) 



A large indivMual of this species, as perfect as usually found of this size. The eye tubercles are crushed, and 

 so much mutilated that their form is not well preserved. The extent of the scabrou.s outer crust can 

 be inferred from the patches still remaining. 



