64 



K. H. # A B H # B T>, 



HHTepecHO, hto HtKOTopbie npenapara (Hanp. H3o6pa»eHHbiH Ha pnc. 56-mt>) roBopBTt 

 3a to, mo npn btomtj npon,eccE aepBHaa njiacTHHKa HHor^a OTin,eiuiHeTCH cSokob-b orb 3kto- 

 AepMbi, norpyacaeTCfl BHyTpb BopoTHHKa h npeBpam,eHie ea bt> Tpy6Ky npoHCxoAnn> Tannm ate 



1 ft 



Phc. 56-h. HacTb nonepeiHaro pa3p§3a nepe3T. ,u,n<i><j>epeHii,npyK)miiicfl bc-pothhk-b pereHepupyiomefi 



Ptychodera bt> oSjiacm o6pa30BaHia Aop3ajibHaro nepmi. ndk — Aop3aJibHaa HepBHaH njiacTHHKa bi> 



MOweHTT. o6pa30BaHia HepBHofi TpyoKH; ph — nepnxajiaabHbifl dojioctii ct> cocyAOMX uexny hiimii (dg); 



en — 3nHTeflifi nnin,eBO,na; coel 2 — uejioMt BopoTHHKa. Zeiss. Obj. Horn. Imm. 1, 5, ocul. 2. 



cnocoooMi, KOTopbin HMieri m-ecto y Amphioxus, nweimo, nyTeMi 3arn6aHifl npaeBx eepBuofi 

 njacTHHKH HaBepxi) n cpoc'rams hx^. 



<1'A- 



