542 GEOLOGICAL SURVEY OF THE TERRITORIES,, 



EXPLANATION OF PLATE XIV. 



Thamnockphalus platyurus Packard, detailH 



Fig. 1. An anterior leg. 



Fig. 2. A middle leg. 



Fig. 3. A posterior leg. 



Fig. 4". Section through the body, showing the relation of the heart, intestine (ini), and 



nervous cord (« g, a pair of nervous ganglia cut through) to the body walla 



and the appendages, l^, P, the two last pair of endites, Jm-, the gill. 

 Fig. 5. The male frontal appendage ; ,5«, end of a branch showing the twigs, and the 



wrinkles and spinules with which the appendage is armed. 

 Fig. 6. The female frontal appendage. 

 Fig. 7. Side view of the head of the female without the frontal appendage, at, first 



antenna ; at^, claspers or 2d autennie ; eye, — the eye and eye stalk. 



