NO. 9 MUSCULATURE OF THE BLUE CRAB COCHRAN 



59 



.-A 



Fig. 24. — Appendages of Pcnaeus set if cms. 



A, the mandible. 



B, the first maxilla. 



C, the second maxilla. 



D, the first maxilliped. 



E, the second maxilliped. 



F, the third maxilliped. 



Add, tendon of the adductor muscle of the mandible ; Bnd, endite of . the 

 basipodite; Bspd, basipodite ; Ccx, exite of the coxopodite; Cxpd, coxopodite; 

 Expd, exopodite ; Prtpd, protopodite ; Scg, scaphognathite. 



