ATTACH' FI T. 

 Vhrr thp larvr is rbout forty-eipht to fifty hours 

 eld it sPttlPE tc the bettor, loses its cili?. ?r>d thus its 

 ncveTer:ts eesse. It is vor rerdy to hercr-e cttacher' . 

 Tho -ethod of r.ttrohrert ir. Sto-otcoa differs fro- th?t usu- 

 ally described r.-d rhi.:!. -1" - rrrarded as tyrlcal for the 

 hydrold larvr; in v,-hich ease they settle dowri on the bread 

 a'-tericr e-d, frcr rhieh the hydrorhiza are piver off, 

 v.'hile the c^rosite end forrs the hydrarth a-d develors 

 the -outh and tentacles. The rlrrula of Sto^otppa instead 

 of settlinr down o^ the anterior end, beceres attached by 

 the vhole le^^.rth of the larva. That ir, the rlanula does 

 net becoTe trarsfrrred into a hydrarth but fcr'-s the root; 

 arc the first hydrrrth is piven off frcr. the root ar a bud. 

 The nla-ula chnnpes its sha^e about the ti-e it is readi f or 

 attachrfrt. The e'larfred anterior end is reduced in sir.e 

 a-^d the ^ arva becer-pc snindle shaned. Then usually about 

 the tir-p tho bud vhich will forr the hydra'^th annears, the 



