PLATE IX. 



Fig. 1. Trachodoti ( Plerojyelyx) inarginalus, Lainbe, right tibia, external view ; five twenty-thirds the 

 natural size. (Provisionally associated with T. iiiarginalus). Page 73. 



Fig. 2. Another tibia of the same species, posterior view ; similarly reduced. (Provisionally associated 

 with T. margiiiatus) 



