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MANUAL OF ZOOLOGY. 



of these being called the " exopodite," and the inner the 

 " endopodite." In this particular segment, the exopodite and 

 the endopodite are greatly expanded, so as to form powerful 



Fig. 157. Morphology of Lobster, i. Lobster, with all the appendages, except the ter- 

 minal swimmerets, removed, and the abdominal somites separated from one another : 

 ca Carapace ; t Telson. 2. The third abdominal somite separated : ^Tergum ; ^ Ster- 

 num ; / Pleura ; a Protopodite ; b Exopodite ; c Endopodite. 3. One of the last 

 pair of foot-jaws or maxillipedes : e Epipodite ; g Gill ; the other letters as before. 



paddles, and the exopodite is divided into two by a transverse 

 joint. In the succeeding somites of the abdomen with the 

 exception of the first, in which there is some modification 

 the appendages are in the form of swimmerets, essentially the 

 same as those attached to the penultimate segment, and differ- 



