(6) 



During the month of January the feritoneal tissues sur- 

 rounding the bloou caeca is very abundai.t but as a rule at this 

 time no e^t^s or sFermatoaoa arc founa to be present in it. In 

 one indiviaual out of some twenty or thirty a few ovarian 6(^,^3 

 v/ere found, iiowever. All of these specimens collectca in Jan- 

 ua.ry were without lophophoral ort,ans and i kcrt n.any o "" them in 

 aquaria until t..e 1st of May, At this time lophophoral or-t^ans 

 began to make their appearaiicc in some, v,i;ile in others they were 

 absent. In ail the specimens, nov;ever, eitlier ovaries or testes 

 were present as was also the case in specimens collectea at Beau- 

 fort in the early part of May. 1 sliall liave so.uething fur- 

 ther to say in reference to tjie lophophoral organs ai£i their re- 

 lation to the breedin>^ season under the section v.hich aeals v/ith 

 tiie structure of the adult. 



The breeding season of Pi-.oroiiis architecta exte^^ds f^om 

 LTarch or April to ITovember or Decenber, Ikeaa (9 ) has stated 

 that "the breeding season of Phoronis IJimai raiiges ti:roUfc,n about 

 half of the year, say from llovomber to June or July". There 

 seems to be a surprising difference in the time of breeding be- 

 tween these two species. The Actino tro chae of Phoronis are 

 found throughout the suruirier and autumii but they are especially 

 abunaant during August and September, Ixeaa has suggested that 

 Phoronis annually "cnanges its generation." It does not seem 



