(101) 

 soirie srecimeiiS until by the first of May, they were -ull 3ik:e. 

 At tius time, another lot of live material was receivea from 

 Eeaufort V7hich affordeci some ver;/ interea tin-, obBervations. The 

 nuTTiber o^ ir-aividuals v/i th aria -^-ithout lophophoral o rgarib were 

 in about the same ratio as aurin,.; the oUirLTier months. At this 

 time, in specimens with lojhophoral or^rans, the testes are presenb 

 tid, ti:e ovaries are not, Y/i:ile specimens v/i thou t loi:hothoral 

 orgaiiS possess ovaries arxCi contain ovariaii ej-^s. Quite often, 

 specimens with lophophoral orf.ans have lart-'e bunches of sperma- 

 toiioa -^loatinc; freely in the boay cavity, and in some cases, 

 these occur inside the nephridia. (slide V/l' ) In one individual, 

 1 have found a large bunch of spermatozoa lodjjed iii the end of 

 the lophoral or/ran*s pocket-lifc: cavity. 



Judginj: from the obgervativns tl-iat 1 have made, it seems 

 to me that the relation of the lophophoral organs to the breeding 

 season is as follows:- Some adults are giving rise to eggs through- 

 out the irionths of M.ay, June, July, August, September and October, 

 Hone of ti:e individuals arising from these eggs become sexually 

 mature until I.^arch o^ April of the next year. Those which are 

 the oldest; i. e. , those born in the early months of the year 

 I before, develop testes ana lophophoral organs in j.iarch or April. 

 Then they lose their lophopnoral organs, ihe testes disappear and 

 ovaries begin to aevelop about the first o ^' May. Y/hile this 



