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 {ip — dp) smaller and 

 softer ; and, -while the ischiopodite (ijj) is the longest 

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

 which is longest in the second. In the first maxillipede 



Fia. 45. — Adacvs flurlatilts. — K, the first ; B, tlie second maxillipede 

 of the left side { x 3). cxj), coxopodite ; hji, basipodite ; e, hi; po- 

 dobranchia ; rj), epipodite ; en, endopodite ; rx, exopodite ; q>, is- 

 chiopodite ; mj), meropodite ; cp, carpopodite ; j'P, propodite ; dji , 

 dactylopodite. 



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

 coxopodite {cxp) and the basii)odite (bp) are broad thin 

 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 



