HABJlK),II,EHia HA^T. nPOAECCOMl, PErEHEPAU,IH V ENTEROPNEUSTA. 



89 



_.-ph 



pereHepauin Ptychodera, Tain, HasbiBaeMofi «supraoesophageal notochord», bt, oSmcth 



BOpOTBHKa. 



KaKi H3BtcTHO, 9 to oopasoBarie, HMiioiAee mjKh JKeioSKOoopasHoii CKJia A KH cnnHOOH 

 ctehkh DHmeBO^a Ha Bceiui, npoTBJKeHin 

 BopoTHHKa h cnyiKamen HenocpeACTBeH- 

 HtiMt npoAOJiaceHieMx npeApoTOBoir khiukh, 

 CBoficTBeHHa HiKOTopbinn. BH^aMi. Ente- 

 ropneusta (ceM. Harrimaniidae). Y Tty- 

 chodera stotl opraHt HopiwajibHO otcjt- 

 CTByeTT,. 



Dpn pereHepanjn bt> o6jacTH BopoT- 

 HHKa noiTH BcerAa mojkho Ha6jnoAaTb 06"- 

 pa30BaHie 9toh bopothhkoboh hotoxopam— 

 KOTopyio, Meauy npoquMi,, mojkho pa3- 



CMaTpHBaTb, KaKTb eAHHCTBeHHblH roMOJior-B 



xopAbi Vertebrata h Tunicata. 



Ha pnc. 62-iwb npeBocxoAHo brack, 



3T0TT, OpraiTL, HMBH)IIl,iH BEAT, JKeJIOO'KO- 



BHAHaro yrjiySjieeifl ctehkh KHiueiHHKa, 

 TBHym,arocfl Ha BceMt npoTAJKemn bopot- 

 HHKa ott, poTOBoro OTBepcrin ao Haqajia 

 ata6epHaro annapaTa. 



HeTepecHO, tto h npn sMopioHajib- 

 homt. pa3BHTin HHorAa noflBJiHeTca stott, 

 opraHT> y TaKnxi, Enteropneusta, KOToptm 

 bo B3pocjroM'L cocTOHHin hmtj He o6jiaAaioTi. 



M oes. nth/. 



Phc. 62-fl. nonepeiHbifl pa3p'E3T> Hepe3t pereHepupyiomiFi 

 BopoTHHKi. Ptychodera. Ha cniiimoii cropoH-fc niiujcBOAa o6pa- 

 30Bajicfl H<ejio6oKi>, Tant Ha3. «supraoesophageal notochord» 

 nan BopoTHHKOBan HOTOxop,na — oes.nth. nd — Aop3ajibH£jii 

 HcpBm.iii tjiwt. BopoTHHKa — bt> bh^'b weJioSKa; ph— nepnx3- 

 MajitHUH iiojiocth; coel 2 — n;e.JOM-b. Leitz. Obj. 2, ocul. 2. 



HiaKT>, mm bha'bjih, tto 1) npn pereHepauin Enteropneusta opraHoreneraqecKie nponeccbi 

 npoTeKaEOTTj GojTEe najrHHreneTHqecKnuix nyTeiu'b, tewl npn OHTorenin; 



2) Ilpn pereHepauin HafijiwAaioTCH cnyqan aTaBH3iua; 



3) IIpHHHHniajibHO Mea^Ay perenepauieft h OHToreHe30Mt sett, pa3jraqia. 

 IIonbiTaeMCfl Tenepb, npnnHMaa Bee 3to bo BHBJiaHie, Ha ocnoBanin coSpaHnaro Maiepiajia 



ocBiTnTb ntKOTopwe Bonpocbi, Kacaioinjeca Mop#o.!ioriH Enteropneusta. 



3an. $ns.-MaT. Otj. 



12 



