HAEJUOAEHIfl HAftl nPOnECCOSTb PErEHEPAn,IH y ENTEROPNEUSTA. 29 



ihhxt, Ha cpfe-b, bcho Bbipaacena — oht, ein,e npeACTaBjaerb co6ok> HacToamyw cjiinyio 

 TpySKy, noiTH jHineHeyto KJTBTOiBbix'b 9JieMeBTOBi BHyipH. Ctehkh stoh Tpyfan o6pa30BaBbi 

 601^ hjih MeHte njiocKHiwi, oahocjiohblimi annTejiieivn,. 



Hapnc. 56-mt, npeACTaBjeaw oo"a nepnxsiuajibHbie Kanaka pereBepnpywmaro BopoTBHKa aa 

 6ojite no3AHeH cxaAin pa3BHTia. Mm bhabmt, Mea^y hhmh chbhhoh KpoBenocHbifi cocyAX, a BHy- 

 Tpn nepnxaMajiLHLixTj hojio- 

 CTen — KJi-BTOHHyK) Maccy . 

 Ha stoh CTaAin BHyrpn 3thxt> 

 opraBOBt j r ace aaqajra ah#- 

 *epeBn;npoBaTT)Cfl Mbirue 1 !- 

 Hbie siejieHTbi bx bha'b kji'b- 



TOKT> CT> A-IHHHblMH OTpOCT- 



KaMB, nepenjieTawmHMHCfl 

 MeatAy coSok). 



YnoMBBy, MeatAy npo- 

 qHM"b, enje o6t> oahomi *aK- 

 tb, oieHb iweHa 3anBTepeco- 



coel/ ... 



BaBHieMT), ho noKa He HaiueA- 

 meM-b HOATBepatAeHia. Mh-b 

 yAaiocb Ha oahoh cepin cpi- 

 3081. Ha6jK»AaTb coBepuieBHO 

 bhoh cnoco6"b oo"pa30BaBia 

 nepnxsiviajibHbix'b nojiocTefi, 

 a HMeHHO, Dyreurb onuHypo- 

 Baflifl KaatAaro M-kuKa orb 



COOTB-BTCTBeHHOH H0JI0BHHKH 

 H,eJIOMa BOpOTHHKa Ha Aop- 



3ajibHofi ero cropoHE. Ha- 

 6jiK)AeHie sto, noBTopaw, 



CTOHTb COBepiUeHHO H30J1H- 



poBaHHbiMi> n a He pBina- 



K>cb HacTaHBaTb Ba Heurb — 



npn Ha6jiK)AeniH HBiema 



tojbko Ba OAHofi cepin pa3- 



p r B30BTb Morjra BKpacTbca 



ouraSKa b-b xoiKOBaHiB npenapaia. 06pain,aK>, OAHaKO, BHHMame AaJibH-MuiHXT. HsciiAOBa- 



Tejiefi na 3Torb ^aKTb wh bkjlj Toro, qxo anajiornqHbiH cnyqan onecajTb Bstcohi. (Bateson), 



H3yqaBuiiH 3M6piona.ibHoe pa3BBTie Balanoglossus KowalevsJcii Ag., o hcm^ eiu,e unate 



GyAcrb pf.qb. 



Phc. 24-fi. CaniTTajiEHbaS pa3pi3X 4epe3T> nepeAHioio nacTt pereHepiipyioineii 

 Ptychodera. Xo6ott> y»e buojih'e ,n,n<t>*epeHuwpoBajicjj, BopoTHiiK'b bt> Ha^aat 

 CBoero o(5pa30BaHiH. coeZ,— u.ejiOM'b xo6oTa; coel 2 — aejiOMt BopoTHiiKa; coel 3 — 

 TyjiOBnu;Hwfl nfiaowh; pre — nepjiKapAifi, HaxoAflmjiicfl bt> HeiiocpeACTBGHHofi 

 CBH3H cu nepHxaMajitHtiM-b KaHajiOM-b — ph; ^—glomerulus; nth— HOTOxopAa; 

 les — wafiepHbie m^iukh b-b naiajrh CBoero o6pa30BaHifl; m — port; gon— rosaAPj; 

 en — KHuie'iHHKi.. }Khbotbog 6ujo aaiuyTHpoBaHO MentAy JKa6epHUM'b 11 neie- 

 homhumh oTA'feaaMH — bt> odjiacTu roHaAi'- Leitz. Obj. 2, ocul. 1. 



