524 
FIG. 
FIG. 
Fic. 
FIG. 
FIG. 
Fic. 
Fie. 
FiaG. 
FIG. 
GEOLOGICAL SURVEY OF THE TERRITORIES, 
EXPLANATION OF PLATE V. 
ESTHERIA COMPLEXIMANUS Pack., and details. 
. Male; much enlarged, ant!, Ist antennsz; ant*, second antenns#; md, mandi- 
ble; mus, adductor muscle; br, gill; br’, upper, and Or’, lower end of 
flabellum. 
. Second antenna of male. 
. First antenna of male; ain, antennal nerve; ol, olfactory process. 
. Five terminal joints of Ist male antenna, showing the terminal fibers of the 
2 
3 
4 
5. 
6 
7 
antennal nerve imbedded in the sense-cells; ol. pap, olfactory papille. 
First leg of male. 
. Second leg of male. 
. One of the foremost legs of the female; br’, broad, flat lower end of flabel- 
lum, closely resembling in form the sixth endite (1°). 
7a. First endite, or gnathobase of Fig. 7, forming the maxilla-like lobe situated 
on each side of the median ventral line of the body, just behind the mouth ; 
c 8, sete, XF A. 
7b. Five sete of the gnathobase still further enlarged, to show the musoular 
tissue (not nerves) entering base of the jointed sets; the outer joint fri 
Fig. 1 drawn by Mr. E. Burgess; the others by the author, with the camera lucida. 
