ButL. U. S. B. F., I 



909. 



Plate XXXIX. 

 EJui 



Fig. 3 



--.9 



pr'o 



Fig. 4. 



Fig. 7. 



Figs, i and. la. — Left first pleopod of female and male respectively, in the former representing a rudimentary endopodite, and 



in the latter a stylifomi process modified for copulation. 

 Fig. 2 and 2a. — Left second swinuneret of female and male lobster, respectively, the endopodite in the latter bearing a short spur. 

 Fig. 3. — Left third swimmeret, showing swimming setae («), and long, nonplumose hairs, modified for bearing the eggs, and 



distributed in 7 groups, marked a g. ' 



Fig. 4. — Left fourth swimmeret from egg-bearing female of approximately the same size as represented in preceding figure, and 



drawn to same scale. Hair clusters a, b, c, and d catch the greatest number of eggs. 

 Fig. 5. — Left fifth swimmeret of series 1-3. 

 Fig. 6. — Left uropod, or modified swimmeret of tail fan. seen from the under or anterior side, in position corresponding to that of 



preceding, showing a-jointed exopodite (Ex) and marginal fringe. 

 Fig. 7. — The same appendage reversed, and seen from the upper side. 



