FERTILIZATION IN LERN.EOPODA EDWARDSII OLSSON. 121 



EXPLANATION OF PLATES. 



All drawings were made with the aid of the camera-lucida. The magnification 

 is given'after the description of each figure. 



Abbreviations. 



a.f. = attachment filament. 

 ant. i first antennae. 

 ant. 2 = second antennae. 



b. = brain. 



c. = cement-like substance of spermatophores. 

 can. = canal of v. d. 3. 



c. g. = cement gland. 



ch. = chitinous covering of spermatophore. 



d. g. = digestive gland. 



e. p. = ejaculatory pore. 

 e. s. = egg-sacs. 



/. g. = frontal gland. 



g. = gill. 



g. p. = genital pores. 



i. = intestine. 



m. = mouth. 



mx. 2 = second maxillae. 



mx. g. = maxillary gland. 



mxp. = maxillipeds. 



mxp. g. = maxillipedal gland. 



o. = eggs. 



od. = oviduct. 



ov. = ovary. 



5. = spermatheca. 



j. g. = shell gland. 



sp. = spermatophores. 



sz. = spermatozoa. 



t. = testis. 



v. d. = vas deferens. 



v. d. i = first branch of vas deferens. 



v. d. 2 second branch of vas deferens. 



v. d. 3 = third branch of vas deferens. 



