220 



HANDBOOK OF INVERTEBRATE ZOOLOGY. 



of a basal portion and two hairy paddles ; but the endopo- 

 dites of opposite sides join each other on the middle line. 



e. Observe that the abdomen 

 and abdominal appendages of the 

 megalops larva are much more like 

 en --VA/ V those of the adult female than those 

 of the adult male. 



FIG. 113. 



FIG. 113. First maxilla of the same larva. (FromClaus.) 

 1. Coxopodite. 2. Basipodite. en. Endopodite. ex. Exopodite. 

 /. Flabellum. 



FIG. 113. Second maxilliped of the same larva. (From Claus.) 



a. Coxopodite. b. Basipodite. c. Ischiopodite. d. Meropodite. 



e. Carpopodite. /. Propodite. g. Dactylopodite. en. Endopodite. 



ex. Exopodite. gi. Gill. 



/. Make drawings of the appendages of the megalops 

 larva. 



g. Carefully compare the various parts of the megalops 

 larva with those of the adult crab, and with those of a 

 lobster or crayfish, and notice that the larva resembles the 

 lobster in the following points of difference from the 

 adult : 



1. There is a rostrum. 



