THE DEVELOPMENT OF MYSIS. 



Fio. 79. Continued. 



PIG. 79. The development of Mysis.A, side view of an eggr, in which the blasto- 

 derm has just appeared. B, side view further advanced. <7, front view of embryo 

 at the same a<*e, showins the procephalic lobes, here marked b. D, larva, ventral 

 view. E. side view. (These two figures have been inverted by the enirniver.) 

 F, youni? pupa. G, further advanced. H, young Mysis, which Ims left it> pupa 

 skin. 7, anterior portion of the same, enlarged, and with the carapace thrown 

 back. <t. vitelline inemhnine : 6, yelk ; r, central depression of the blastoderm ; 

 ef, procephalic lobes; /', larval inteifument; g, its caudal enlargement; h, cara- 

 pace. 1.9,8,4, etc., the somites and their appendaates, numbered from before 

 backward. 



