THE METAMORPHOSIS OF A CRAB. 



219 



and lacks the many-jointed tip which is found in the adult. 

 The endopodite (en) is free from the exopodite, and has 

 only a few hairs, but in other respects it is similar to that 

 of the adult, and very different from that of the zoea. 

 The appendage carries a long flabellum (/), which pro- 

 jects into the gill-chamber, and is like that of the adult, 

 but with only a few long 

 hairs. The basal joints 

 of the appendage (1 and 

 2} are very different from 

 those of the zoea, and are 

 very similar to those of 



the adult. 



FIG. 112. Second maxilla 



of the same larva. (From 

 Claus. ) 



1. Coxopodite. 2. Basipo- 



dite. en. Endopodite. sc. Scar 

 phognathite. 



1 



FIG. 112. 



7. The exopodite of the second maxilliped (Fig. 114, ex) 

 is like that of the zoea, but in other respects the append- 

 age is like that of the adult. 



8. The third maxilliped (Fig. 115) is fully developed, 

 and much like that of the adult, except that the basal 

 joints of the endopodite are not flattened to form a mouth- 

 cover, or gnathostegite, and the gill is carried upon the 

 basal joint of the limb, instead of upon the episternum. 



9. The pereiopods (Fig. 116) are essentially like those 

 of the adult, except that their gills are upon their basal 

 joints. 



10. The abdominal appendages. These are carried by 

 all or by the last five abdominal somites, and each consists 



