NEPHROPS. 



209 



will be on the basal joint of the anti-penultimate leg. 

 In front of the legs are the chelce^ or pincers, usually asym- 

 metric, as one is modified for cutting and the other for 

 crushing. They are evidently large legs and do not differ 

 essentially from a typical leg. 



Fig. 132. — A Chela of Nephrops (9th appendage). (Adnat.) 



Fig. 134. — A Non-Chelaie Leg of 



Nephrops (12th appendage). 



(Ad nat.) 



In front of the chelse are three pairs of maxillipedes 

 or foot-jaws. The second maxillipede may be examined 

 first. It has a leg-like five-jointed endopodite, a two-jointed 

 protopodite and a long filamentous exopodite Finally 

 there is a long epipodite, but no gill."' The third maxilli- 

 pede is like it, but can be easily distinguished by the serrated 



* In Astacus there is a gill on this appendage. 



