HABJIIOAEHItf HAA'b npOUECCOMl PErEHEPAUJH V ENTEROPNEUSTA. 39 



Kaia> Mbi yBHAHMt ^ajitine, noAo6Hbie cisam SHAOTejiia yate 6huu Ha6jiK)AaeMbi Bate- 

 son'oMT> a Spengel'eMi,, KOTopbie, OAHaKO, H3o6pa3HBi> sth kjietkh Ha cbohx-b pncyHKax"b, He 

 oSparajra Ha mxb AO-nacHaro BHHMama. 



Bt> KOHn,-B kohhobt. #yHKn,ioHHpoBaHie cepAua Enteropneusta o6ycjoBJHBaeTCfl acKJiioan- 

 TejBHO coKpain,eHieMi> Mbimirb HHBarnHnpoBaBniefi ctbhkh nepuKapAia. Bt> text* cnyaaax'b, 

 Korjia cymecTByeTrb cepAeiHbifi aHAOTejifi, oht> KbdTOWb nponecd;, B-fepoaTHO, Toate nrpaeTi pojb. 



MeHfl oaeHb HHTepecoBajT> Bonpocb, OTKy^a npoHcxoAarb bo BpeMH pa3BHTia KapAio- 

 nepHKapjifl aieMeHTbi, o6pa3yK)in,ie 3Ty BbiineonHcaHHyio SHAOTeiiajbHyio BbicTHJiKy nojiocTii 

 cepAH,a. 



OKOHiaTeibHO p^mHTb 3Torb Baambin Bonpoci> Mfffe He y^aiocb. 



H Ha6jnoAajn> HeoAHOKpaTHO npncyrcTBie wb SjiacTouexE, Meauy aoTOxopAoii h neJiOMiiae- 



CKOH HOJOCTbH), OTA"BJIbHbIXT> KJTETOK'b Me3eHXHMaT03HarO XapaKTepa. 3th H30JHpOBaHHbIfl KJrETKH 



3aiacTyio HaSjnoAaiOTca Ha bcbx'b cTaAiax-b AH^epeHaapoBaHia KapAio-nepnKapAiajibHaro 

 ny3bipbKa (Hanp. cm. pnc. 33-h). H canraK) oaeHb B03MoatHbiM , b, Aaace hoith HecoMH'EHHbiM'b, hto 

 onncaHHbie Me3eHX0MajbHbie 3JieMeHTbi n AaioTx Haaajio SHAOTejuio, BbicTnjiaK)in,eMy ncuocTb 

 cepAHa. Hto KacaeTca npoacxoatAeHia caMnxT> Me3eHXHMajibHbix'b kxetokt,, to, BBpoarao, oak 

 OAHoro nponcxoatAeHia ct> 3JieMeHTaMH, o6pa3yioin,0Mn KJiBToaHyio 6a3ajbHyK) naeHKy, bbicth- 

 jaiomyio cb BHyTpeHHeft CTopoHbi xo6ott>. 



TaKOBbi npoueccbi o6pa30BaHia KapAio-nepHKapAia bt> pereHepHpyioineM'b xo6ote Ptycho- 

 dera, wb cBoen HaaSo-HTse TnnaaHon •topM'E. 



ynoMHHy em,e o6t> oahomtj BHAOH3M , EHeHiH 3Toro nponecca, KOTopbifi 0HorAa Ha6jiOAaeTca 

 npn pereHepaiuH, a hmchho: oSbiKHOBeHHO coBepraeHHO 3aMKHyTbifi, o6oco6jieHHbra orb n;e.iOMa 

 KapAio-nepnKapAiajibHbiH ny3bipeKi HHorAa bi HeHopMaibHbix'b dyaaax'b Moaterb oaeHb AOiroe 

 BpeMH ocTaBaTbca bt> coeAHaeHin cb nejiOMaaecKoio nojiocTbio. Bt> acKjiioaHTejibHbix'b cnyaaaxx 

 nepHKapAifi coooinaeTca cb oabhmt> H3T> AHBepTHKy.noB'b neJOMHaecKoii nojiocTH Aaate Ha caMbixt 

 H03AHHXT> CTaAiax'b AH^epeaaapoBaHia "xo6oTa. 



YnoiviaHy eine, aTO yate Ha nepsbix-b CTaAiax-b pa3BHTia KapAio-nepHKapAiaibHaro 

 uy3bipbKa BHyTpn ero Moamo Ha6.noAaTb cBO^OAHO-njiaBaiomia kji-btkh Me3eHXHMaT03Haro xapaK- 

 Tepa — 3to kjtetkh nejeaxnMbi, nonaBHiia BHVTpb ny3bipbKa bo BpeMH npouecca ero OTnmypo- 

 BaHia OTb aeiOMa (pnc. 27, 29 h ap-)- Bt> Teaeme AaJibBMrnefi AH*<i>epeHHHpoBKH opraHa, orb 

 ero CTiHOKT) npoAOiacaioTx OTA'EJHTbca KJiBToaHbie sieMeHTbi n nonaAaTb BHyTpb uojiocth. 

 HHorAa npoueccb oTA^ieHia ott> cT'feaoK'b ny3bipbKa KJiiTOK-b aejieHXHMbi HAerb CTOJb hhtch- 

 chbho, hto Ha hosahext. CTaAiax'b o6pa30BaHia KapAio-nepHKaAia ero nojrocTb a-BJinKOMT), hjh, no 

 KpaHHen M-Bp'fe, 'wb 3HaaHTejibH0H cTeneHH 3anojHaeTca aeJieHXHMOH (pnc. 34-fi), o6pa3yK)m,efi 



H-EHTO BpOA'B COeAHHHTeibHOH TKaHH. 



3anojiHeHie ho-iocth nepHKapAiajbHaro ny3bipbKa aejreHXHMaT03H0H TKaHbio HMBerb m-bcto 

 h bt. HopMajibHbiXT. ycjiOBiaxT,: 3aqacTyro nojiocTb nepnKapAia xo6oTa Enteropneusta HacTOJibKO ate 

 BbinojiHeHa neJieHXHMoa, KaK-b h caMa aejioMHaecKaa nojiocTb — 3to o6cTOHTejibCTBo yaie AaBHO 

 o6paTHJio Ha ce6a BHHMaHie IIlHMKeBHaa (89), KOTopbin, npeAHOJiaraa a priori aejiOMoaecKoe 



