68 K. H. JABH^OBt, 



TaKi, ecjiH odaBajcfl caMbra 3aAHin KOHen,i> — t. e. 3-h cenneHrb, to HOBbia, BBOBb 

 o6pa3yioiii,iflca nejioMnqecKia iiojiocth xo6*OTa n BopoTHHKa pereHepnpyiOTT, iiacqerb nejiOMa 3Toro 

 3aAHHro cerMeeTa. 



Ecjih aMnyTairja 6biJia npoH3BeAeaa Ha ypoBH-fc BopoTHHKa, to bt> pereHepnpyioin,eMT, 

 xo6"ot'£ (h qacTH BopoTHHKa) nejiOMT. oSpasyeTi. nacqeTt nejioua BopoTBHKa, a TaKHte h Tyjio- 

 BHin,a (nepnxaMajibHbifl iiojiocth, nam. mh bha^jih, TO>Ke npnunMaiorb yqacrie bt> o6pa30Bauin 

 uejiOMnqecKOH iiojiocth xo6oTa). 



TaKHMi> o6pa30Mi> mmodepMa uuKOida ne npunuMacmz yuacmin oz npoueccn pexene- 

 pauiu ueAOMa. 



Ilpn aMopioHajibHOMT, ace pa3BHTin Enter ojmeusta nejiOMnqecKia dojiocth hxi, Kaicb 

 H3BBCTBO, 6"epyTT> oSbiKHOBeiino iiaiajio h3t> ajieMeHTOBT. uepBHinaro KHineqHHKa, npHqeMx wb 

 oahhxt. cjiyqaaxx na6jiK>AaeTca nponeccb HacToamen, THnnqnofi SBarnHaain ct1;hkh nepBHqiiofi 

 khoikh (y B. kowalewskii), bt> iipyrnxT. ate, KaKT> Hanp. y HT>KOTopbix'b Tornaria, npoueccb 

 3TOTb H-fecKOJibKO 3aTeMHenT>, a HHorAa h CHJibHO BHAonsMiHein.. TaKi, nanp., y H3yqenHbixi 

 Mopranonn. aiwepHKaHCKHxi Tornaria Mbi nafijiiOAaeM'L yate nponeccb o6pa30Bauia uejiosia 

 ne 3HTepou;ejibHbiMT> nyTeMT,, a nyTenn> npocTon npojin*epau,in 3JieMeHTOBT> 3HTOAepiubi. 

 nocxEAHie cuaqaJia o6pa3yK)Ti njiOTUbia KJiIvroqiibia cnonjieBin, BiiyTpn KOTopbixt BTopnqHbiMt 

 nyTeMT, o6pa3yeTca nojiocTb. 



HTaKi,, npu peienepauiu Enteropneusta ue.ioMi 6epcmz umiaAO U3Z dAemeumooz cmapaio 

 ueAOMa, npu OHmoieuiu — U3Z dumodepMbt. nojuiaro cooTBBTCTBia iweauy oSohmh nponeccaiwH 

 Mbi bt> AaHHOMT> cjryqafc KaKi) 6y^TO ne naxoAHM'L, OAHano mht> Kaatercn, pa3Jinqia 3A'kcb He 

 cTOJib 3HaqHTejibHbi, KaKT> KaatyTca Ha nepBbin b3i\jha , i>. 



IlpeJKAe Bcero HyjKHO 3aMfVnrrb, qTO h npn 3M6piouajibHOMi> pa3BHTin, Hanp. y Tornaria, 

 nejiOMHqecKia nojiocTH BopoTHHKa h TyjiOBnma o6pa3YK)TCfl ne bt> brat, caMOCTOATejibHbixT> 

 BbiiiaiHBaHiH CTiHKH nepBHqHaro KnmeqHnKa, Kant sto onncano Estcouomt, ajih B. koivalew- 

 sJcii, a H'fecKOJbKO HHaqe. ,3,-fejio nponcxoAHTL TaiCL. CnepBa oo"pa3yerca napa nejiOMHqecKHXT> 

 ny3bipbK0BT), cooTB-feTCTByKDUAHXi. nejioaiy TyjioBHmnaro cerMenTa, KOTopbie yjKe AaiOTt bt> 

 cbok) oqepeAb naqajio nejiomy BopoTnnKa. TaKi. nponcxoAHTb nponeccx o6pa30BaHia n,ejio- 

 MnqecKHXt m'Bidkobt> BopoTHHKa h TyjiOBHu;a y cpeAHseMHOMopcKHX-L Tornaria no HaSjiio- 

 AeniaMTj Ulnenrejifl (Spengel, 93, CTp. 427 — 431), KOTopbia BnojiHi noATBepAHJin 

 anpiopiioe npeAnojioateHie MeqHHKOBa (Metschnikoff, 70, CTp. 132) o tomt., *qTO nejio- 

 innqecKia nojiocTH BopoTHHKa npeACTaBJiaioTi co6ok> OTAiJinBimeca yqacTKH nejioma TyjioBnnA- 

 Haro ceriaeHTa. 



TaKHMT> o6pa30MT> mbi bhahmi, qTO h npu oumoieHe3ib ueAOMz eopommiKa o6pa3yemcn 

 uuoida ne Henocpedcmeenuo U3z ;mmodepMu, a oepemz uauaAO usz dAeMewmoez yowe ccfiopMupo- 

 eaewaiocH ueAOMa myAoeniua. 



3HaqHTejibH0 TpyAflte KaateTca Ha nepBbiii BsrjjflAt npoBecTH napajuiejib nieatAy pereHe- 

 pau,iefi h oiiToreHien bt> nponeccaxi> o6pa30BaHia xo6oTiiaro n,ejioina. 



Mbi BHA'feJiH, qTO npn pereiiepauin nejioMi, xoGoTa BcerAa SepeTi. naqajio H3T, nejioMa 



