CLADOCERA 



327 



Fig. 234. Thoracic limbs of Daphnia pulex. After Lilljeborg. A, First. 

 B, Second. C, Third. D, Fifth limb. br. branchia; en. endopodite; ex. exo- 

 podite ; fr. fringe of bristles which strains out the food : normally this fringe 

 stands vertical to the plane of the hmb (see Fig. 235, hri.), but it has been 

 mounted flat for drawing; "^«." "gnathobase"; ^r.e^. proepipodite. 



