U. S. NATIONAL MUSEUM 



BULLETIN 166 PLATES 



Species of Ranilia. Lyreidus, and Symethis. 



1, Ranilia constricia, female (4S642), X !}■> dorsal view; 2, same, ventral view; 3, R. fornicata, male (21710), 

 X 2, dorsal view; 4. same, ventral view; 5. Lyreidus bairdii, male (66639), natm-al size, dors il view; 6, same, 

 ventral view; 7. Symtthis rarinlnsa, female (47973), X 1 ' 2, dorsal view; 8, same, ventral view. 



