3 



Icid the rnodusr. ron;ains at ono soot, unless disturbed .a-^d 

 Izeens \xv^ a continuous and rhyth:'io contraction and expan- 

 sion of the bell and oroboscis. Thuo as the- eprrs are liber- 

 ated, one, tv/o, or three at a time, they arc- alnost iri-iediate- 

 ly pass;:d out with the ..iection of ".he water from the bell 

 cavity. Thin process of dehiscence lasts for a few ninutes 

 durin.c^ which the iri^dusa remains at t-he bot^O" of .he aquar- 

 iun. All the nature eg£^s are discharged without inter- 

 niission in the process, unless the medusa is disturbed. In 

 that case it frecuently swins to another oart of the aquar- 

 ium and in a short tine comrences to discharge the egqs again, 

 The eggs i . the ovaries of Stomotoca anicata are usually 

 all der^osited at one time. Occasionally a fe;; inmaturo/ones 

 are left in ohc^ ovaries after i-he process of dehiscence, 

 y/hether these nature and are laid r.t a later tine, or -.vhether 

 they are reabsorbed I a:.: not able zo decide. 



As stated above, the egjTS are laid at about five A. iJ. 

 On several occasions I observed the ■ rocess of dehiscence and 

 found that the tine was always Dractically the sane, Sone 

 nedusae wore watched all night, July 14. At five o'clock 

 in the norning they began to lay their eggs. They all began 



