io6 Uniicrsity of Michigan 



Plate XII 



Xanostrcf^tus orthacanth.us, sp. nov. 



Fig. ~~. Gonopods of male, anterior view. x22. 



Fig. 78. Right gonopod. posterior view, x 22. 



Fig. 79. Leg of sixth segment of male, x 45. 



Fig. 80. Caudal end of body, dorsal view, x 17. 



Fig. 81. Anal scale, x 17. 



Xanostrcptus astix, sp. nov. 



Fig. 82. Collum. lateral view, x 17. 



Fig. 83. Outer face of cardo of mandible, in outline, x 45. 



Fig. 84. Anal scale, x 17. 



