518 GEOLOGICAL SURVEY OF THE TERRITORIES. 



EXPLANATION OF PLATE II. 



Details of Limnetis gouldii Baird. (For figure of the entire animal, female, see 



Fig. 1 in text.) 



Fig. 1. First leg of female, X i A. Lettering as in Plate I. The lower branchial lobe 

 (ir") very slender, and subjointed, as in the fifth and sixth endites (i*, P). 



Fig. 2. First leg of male. 



Fig. 3. Second antenna, X i A. 



Fig. 4. First antenna, from the same specimen as Fig. 3. 



Fig. 5. Eyes (double), with the optic nerves ; the cornea and retina removed. 



Fig. 5a. A portion of the optic nerve situated half-way between the brain and eye, 

 magnified ^ B Tolles, to show the ganglion cells, constituting the greater 

 » portion of the optic nerves. 



Fig. 6. Cornea, with the peripheral circle of crystalline cones, and the retina in the 

 middle of one of the double compound eyes. 

 Drawn, with the details filled in with the camera Inoida, by the author. 



