32 



In Cunina, which falls into Haeckf^l's order, the 

 "Narcomedusae" , the ciliated, tentacled larva multiplies by 

 buds, i^roduced from an aboral stolan. These buds are not 

 detached until mouth, digestive cavity, and tentacles are 

 well developed. Several are produced simultaneously, and 

 are attached to the parent by the oral extremity. The de- 

 scription of this remarkable process is given by Dr. W, K. 

 Brooks, in "The Life History of the Hydromedusae" , (1S86), 



It is my puii)ose in this section to give an account 

 of a process of budding in a very diffei'ent medusae from 

 Cununa, and one in v/hich the asexual multiplication takes 

 place quite differently. In Gonionema the buds are produ- 

 ced in a manner which reminds one very strongly of the sim- 

 ilar process in Cassiopea . 



In the course of my general study of the embryology 

 and development of Gonionema I came upon the budding larvae 

 (Figs. 14 -23). From a lot of eggs obtained at Wood's Mole 

 in Aiigust, 1901, a large number of polyps developed and 

 were kept alive in a "balanced" aquarium for several months. 

 This lot was left at V/ood's Hole in as nearly natural con- 

 ditions as possible until the last of November. The water 

 was kept fresh by frequently r-enewed supplies of diatoms 



