564 GEOLOGICAL SURVEY OF THE TERRITORIES. 



EXPLANATION OF PLATE XXV. 



ESTHERIA MEXICANA AND E. COMPLEXIMANUS, details. 



Fig. 1. Estlieriamexicana. Second antenna. 



Fig. 2. Leg of first pair; male; d, 1st endite. 



Fig. 2a. Hand, including the fourth endite with the palpiform thumb {p), and comb- 

 like edge of the endite. 



Fig. 3. Leg of second pair, male. 



Fig. 3a. Hand of second pair of male, leg; muse, muscles of hand. 



Fig. 3&. Comb, or spiney edge of the fourth endite. 



Fig. 3o. Palpus-like terminal joint of the fifth endite, showing the sense-cells with 

 which it is filled, and the tactile hairs at the extremity, X i A Tolles. 



Fig. 4. View of the head with the double-eye, from above. 



Fig. 4a. The same, seen from the side. 



Fig. 4&. Another lateral view of the head and rostrum. 



Fig. 5. End of the abdomen, including the telsou of the male (female the same). 



Fig. 6. Estheria compleximanns Packard. End of abdomen. 

 Drawn, and details filled in with the camera lucida, by the author. 



