(97) 

 1 fiiio that rro' observations aj^ree with these o^ Aiidre-.vs tut 

 there are a fev: points wnivAi it seems to ine wortn while ai scus- 

 B i ng . 



Lo J ho j: ho r al r .^ an s . _ 



These peculiar organs ("Fig. 62) have been observea in sev- 

 eral aif*"erent opeties of Fhoronis ana althou^J- "^rnctiono for 

 them have been suggestea yet tie observations do not seem to 

 have extended over a lon^ enoiii.v'i period, in the aault life of 

 tiie v-onri to "/arrant a aefinite st ^t'^r.icnr ^t. to tnoi r ■■'■'i_i. ti on. 



The lophophoral or^^ans (Fig. 62) lie one on each side cf 

 the median line within the concavity of the lophophore. They 

 are outgrowths from tiie base of tiie inner ro v.' of tentacios ana 

 in seme species, at least, are quite conspicuous organs, but 

 they do not arise until the Fnoronis has readied its aault siiie. 

 Organs locatea in the above region have been describea for 

 eight species but the si^e and shape do not aeern to be the saine 

 in all. V/hetlier tl,ese differences are specific or v/noths'- the 

 observations have been made at different perioas Jn the aault 

 lif-, it is hard to say. lophopncral organs, like ti:ose pres- 

 ent in Phoronis architecta ar- fbund in P. To .mmopMla, P. P..- 

 cifica, P. Mfille.i .na, I suppose, i. some otuer specie, also. 

 It seems, i,o.ever, probable fVom the aescripticn of the anatomy 

 Of P. Pus.ii an, P. Australia t.at in these spece., .he loph- 



