NO. 1368. 



DESCRIPTIONS OF ARGULIJJJ:— WILSON. 



639 



em])rvo in a mnch smaller space, with a resultant confusion of the 



parts. 



Such close packing explains, furthermore, the small size of the egg, 

 and ^ye are forced again to the conclusion that the size of a copepod's 

 eoo- has very little to do with the size of the adult female. It is, 



PlO. It;.— NKWI.Y IIATCIIKII I.AUVA OF AROrlTS AMKKirANVS. 



rather, dependent upon the length of time the em))ryo is to roniain 

 within the eg^ and the degree of development it is to attain before 

 liatching. An adult amerkana.s is much larger than a nn<iiih>ps^ and 

 yet the eggs of the two are about the same size. This is explained l\v 

 the fact that the megalojys larva spends sixty days or more inside the 

 Proc. N. M. vol. xxvii— 03 45 



