(96) 

 v/hich Mdrev/s describca mv^t have been c onaiaorably more extena- 

 ed tn^M aiiy 1 have kiliea. When the aiiimal io in .its natural 

 habitat aiici uuais turbed, however, it ii. capable; of ^reut exten- 

 sion; stretchin<_i ti:^ whole lonj^th of the tube and even consid- 

 erably farther .so that ito lophophoral end may project above ti.e 

 surface of tne sand ana reach for some covisiderablo distance 

 alonr, its surface, 1 nave not been ablo lo preserve specimens 

 in their extendea conaition and 1 find that they usually con- 

 tract to -''rom kO to 25 irai, in len^jth. 



The anterior tv;o-tniras or tne li vin^^ specimen has a flesn 



color, v/rxile ti:e posterior oiie-third is dark yellowish rea and 



to the fact that 

 ::u.ie opaque which is due^ .he ^^onads and blooa caeca ,aro sit- 



uac-eo. in t hj .i re^;ion. In preserved specimens, the body v/all is 

 annulatea (l^i,,.61) but such is not tne case pro bau.- in the -ully 

 extended inaividual. 



The crown of tentacles is .iuite simple comparea to the 

 crown 0^ tentacles in P. Australia, P. Eusxii and P. Pacifica. ' 

 A cros. section shows that it i. crescentric ana that the e.as 

 are not spirally coiaea. ( Fi^^a . 62-63- 64) 



Anarewo (1) has ^iven us a description of the principal 

 POi.ts in the anatomy o- Phoronis arcnitecta wnicn n. has un- 

 ^oubtealy maae ,.ief because of the rese..lance to t .e anatomy 

 0^ Phoronis Australia as aescribea by Eenham (.). i, ,,,,,^, 



