122 University of Michigan 



Plate XX 



Dromodesmus longipcs, sp. nov. 



■Fig. 134. Leg of fourth to last pair of male type, in outline, x 13. 

 Fig. 135. Left gonopod. ectal view, x 33. 



Coloinbodcsiiius catharus, sp. nov. 



Fig. 136. Left ends of collum and succeeding two tergites in outline, 

 the tubercles, etc., not represented, x 17. 



Fig. 137. Tentli left keel in outline, x 17. 



Fig. 138. Left side of caudal end of body, dorsal view, in outline, x 17. 



Fig. 139. Right sternal spines of last two pedifcrous segments, witU 

 bases of legs. X30. 



Fig. 140. Anal scale, x 30. 



