250 



THE ORIGIN OF VERTEBRATES 



Ce. 



Fig. 107. — Phrynus Margme-Maculata. 

 Cc, median eyes ; lc, lateral eyes ; glab., median plate over brain ; Fo., fovea. 



supr.0es.gl--/ 



Fig. 108. — Phrynus sp. ('?). Cahapace removed. 

 cam., camerostome ; pi., plastron. 



