166 



THE MORPHOLOGY OF THE COMMON CRAYFISH. 



The second maxillipede (fig. 45, B) has essentially the 

 same composition as the first, but the exopodite {ex) is 

 relatively larger, the endopodite (ij) — dj)) smaller and 

 softer; and, while the ischiopodite (?p) is the longest 

 joint in the third maxillipede, it is the meropodite (tup) 

 which is longest in the second. In the first maxillipede 



Fig. 45. — Afstocns fl7(viatnis. — k, the firpt ; B, the second maxillipede 

 of the left side ( x 3), c.vj), coxopodite ; h^y, basipodite ; e, b>\ po- 

 dobranchia ; ejj, epipodite ; en, endopodite; fa^, exopodite ; ij^, is- 

 chiopodite ; mj), meropodite ; cj), carpopodite ; J9/?, propodite ; dj>, 

 dactylopodite. 



(fig. 45, A) a great modification has taken place. The 

 coxopodite {cxp) and the basipodite (/_>/)) are broad tliin 

 plates with setose cutting edges, while the endopodite 

 (en) is short and only two-jointed, and the undivided 

 portion of the exopodite {ex) is very long. The place of 



