RESPIEATORY MECHANISM OF CORYSTES CASSIVELAUNUS. 291 



Fig. 4a. First maxillipede of Corystes. Fig. 4b. First maxillipede of Cancer. 



B. basipodite. /. flabellum. 



C. coxopodite. end. endopodite. 



ex. exopodite. " l special endopodite lobe, fringed 



Jl. flagellum. with straining hairs. 



Fig. 5a. First maxilla of Corystes. Fig. 5b. First maxilla of Cancer. 

 Lettering as for 4. 



Fig. 6. Part of antenna of Corystes, to show the two rows of simple hairs. 



Fig. 7. Straining hairs, such as fringe the endopodites of 4 and 6 in Corystes. 



