PLATE 81. 



Fig. 1. 707. 1. Megalomus canadensis. (Pag. 343.) 



1 a. C««t of a large individual, presenting the ordinary characters of specimens when not distorted. 



1 6. A cast of a much shorter specimen : probably the form is in part duo to pressure on the posterior end. 



1 c. View of tlie anterior extremity of the specimen 1 b. 



1 d. Dorsal view of the same. 



1 c. A cast of a specimen somewhat distorted by pressure, which has projected the lower anterior end beyond 



the beaks above. 

 1 /. View of the anterior end of the specimen fig. 1 e. 



