418 



ARTHIIOPOBA. 



Fig. &i).—Daplinia pulex. b, brood chamlicrs with embryos; a, brain ivith nniipiius 

 eye; go, 0])iir ixaJiu'lion; /(, Iieart; o, ovary; s, sbell salami. The ei-^irs arise at k, and 

 separate, forming' in groups of four, as at '■, of whieb one beronies tile e,i^^^ wliile 

 the others aliort (o) and form food. The eitf; tlien passes to tlie brood chamber. 

 /, 3, tirst and second antennae; J, mandible (maxilhi rudimentary and in\-isible); 

 .^-.'', legs. 



