THE REPRODUCTIVE SYSTEM OF E. SUPERBA 



341 



the lobe into two parts (Fig. 19). In the adult, these two parts have been called by 

 Zimmer (19 13) the inner lobe il and the middle lobe ml, respectively. The inner lobe 

 carries the cincinnuli. 



The auxiliary lobe does not increase in length as modification continues, but it 



Fig. 21. Fig. 22. 



Fig. 21. Second pleopod, modification of the auxiliary lobe, x 30. c, cincinnuli; /, fold; il, inner 



lobe; ml, middle lobe. 



Fig. 22. Second pleopod, mature form, x 30. c, cincinnuli;/, fold; //, inner lobe; ml, middle lobe. 



becomes broader and gradually shifts farther towards the tip of the setigerous lobe si. 

 A fold/ arises on the inner lobe and extends downwards over the surface of the setigerous 

 lobe, beyond the junction of the auxiliary lobe (Fig. 20). 



The tip of the inner lobe extends outwards beyond the cincinnuli, and becomes blunt 

 and rather square, while the tip of the middle lobe remains pointed and reaches to the 



