54 



HISTORY OF CRUSTACEA. 



Chap. VII. 



^^^^^^^ 



Fig. 25. 



those of the true Crabs, which it likewise resembles 



in its mode of locomo- 

 tion. The carapace 

 possesses only a short, 

 broad frontal process ; 

 the posterior margin 

 of the tail is edged 

 with numerous short 

 setse. 



The Zoea of the 

 Hermit Crabs (fig. 26) 

 possesses the simple 

 inner antennae of the 

 Zoea of the true Crabs ; 

 the outer antennae bear 

 upon the outside on a 

 short stalk a lamella of 

 considerable size ana- 

 logous to the scale of 

 the antennae of the 

 Prawns ; on the inside, 

 a short, spine-like pro- 

 cess ; and between the 

 two the flagellum, still 

 short, but already fur- 

 nished with two apical 



8 Fig. 25. Zoea of the Ta- 

 tuira {Hippa emeritd), magn. 

 45 diam. 



9 Fig. 26. Zoea of a small 

 Fig. 26.' . Hermit Crab, magn. 45 diam. 



