nAPAaHTUSMT) .iflqHDOKi Anodonta. 73 



ocBoSoHtAaJHct ottj BC'fcsx iiapasiiTOB^. Ci Apyroji CTopoHti npn ecrecTBeHnoMi xoAt Bemea 

 rjioxHAin, KOToptiMt yAa.iocb obi npo^HO ocHOsaTtcfl ea rojioaacTHKaxi, AOJiamti Gti.iH 6bi no- 

 raSByTb, bo Bpema MeTaMop<i>03a h nepexoAa rojiOBacTHKa k^ naseMHoii aiHSHH (He roBopfl y«e 

 o6i> aTpo*iH XBOCTa!), — ecjia 6bi hxt> napaanTHqecKaa ^khshb He ycnijia aaKOHinxbca panbine. 

 3thmT) ate oSiflCHflexcfl h to, hto nocjit OToaAeeia rjioxe;iieB^ na xBOcraxi ocrawTca 

 TaKia cpaBUHxejibHO oojbmia paaopBannbia paHKH; ekiOBaxoe noMyTHinie Koa;H 3aBHcnxT> OTh 

 CKonjieiiia JieHKOuHXOBi; y rojiOBacxnKOBx> 3xo MoacHO BDAtTb, 6jaroAapa iipospaqHOcxH xKaeii 

 XBOCxoBaro njaBHHKa (oco6euuo y E. temporaria) noAt M0KpocKonoMT> Ha acBBOMX) h;hboxhomi> 

 (pHC. 2; jierKiS roJiySoBarbin oxT-feeoK^, npHAaHHbifi xyAoatHHKOMT> JieHKor^Hxaiii ua pncyaKt, h 

 cooxBtxcTByiomin A'tHCXBHxe.'ibiiGcxn, Bt nenaxH BbimGjn> cjhuiko pisKo). SaaiiiaxejibHO ixo 

 pa3pocxanie annAcpMbi n CKonjieiiie jieHK0u,HT0BT3 nocjii oxnaAeHia rjioxnAieB-L ue npoxoAan> 

 cpasy; xanx. Ha rojoBacxHKaxt, oSpaooxanHbixi. lepesb HeA'feJuo nocji-fe aapaacenia, h yase H-fe- 



CKOJbKO AHSH KaKT> COBepmCHHO 0CB060AHBmHXCa 0XX> r-IOXHAieBi, BbipOCXbl 3nHAepMbI SblJIH 



3HaMHxe.ibHte Hfewi y rajJOBacTBHOB-L nepBbixx. ahch, h SHaqaxejibHoe xaKate 6biJio CKonjieuie 

 jieHKOunTOBi. noc.it yAaJienifl rjioxHAifl ocxaexca eme AJiHTejibHoe pasApaaceHie, 



06pa30BaHie uncibi. Ha npenapaxaxx rojiOBacxHKa xopomo MoajHO 0biJio snAixb caMwii 

 npoueccT) o6pa30BaHia aocxw. ToHKaa anHAepiaa KoatH Ha xBocit rojiOBacxoKa cocxohxt> Bcero 



H3T5 AByXX> CJI0eBT> KJlixOKX: HHacniH CJIOH H3T> UIHpOKHXX), HH3KHXT> atHBblXl KJltxOKl, H Bepxnift 



H3T) iiJiocKHxi, 0TMHpaK)in,HX'b, CT. xeMHO KpacflmHMHCH cMbHO BbiraH3'XbiMH aApajiH. rioAt 

 3CHxejiieM^ jemnxi AOBO.ibHO xopomo BbipaateHHaa, na irtKoxopbixi nperiapaxaxX) CMbHO 

 Kpacamaaca reMajiaynoMX) ocHOBHOBnaa uepenoHKa, Basal membran; HenocpeACXBenHO noAX> 

 Hcio, H njiOTHO Kt HBH DpHJjeraa, pasSpocaubi wfecxaMH nHrMeaxobia KxfexKn (BixBHCXbia, 

 KaKT. BOAUO Ha ajHBbixX) rojioBacxHKaxT.). M'fecxaMH nnrMeHXT) bhaghx h bi aoHAepjit. Hpn- 

 KptnjflflCL KT) XBOCxoBOMy HjaBHHKy, MH ApyroMy M'hcxy xijia ro;iOBacxnKa, rjoxBAiii saxBa- 

 xbiBaexx. H ymcMJiaexij KycoqeKT> Koa;H (annAepMy BJitcxt c^ Basalmembran) naKXi 6bi 

 oxxarHBaa ero on. ocxajbHon noBepxuocxH Koacn, h pa3pbiBaa npn 3xomX) cbohmh aySaawH 

 soHAepiviy (pnc. 73, 74). HeMeAJieHHO nocjit 3Xoro no Kpaajix, paHKH Ha^HHaioxca n3MiHeHia 

 hi, snBAepM'fe; ya;e ^epeax. ABa ct noiOBHeoS qaca nocjit sapaacenia MoacHO BHA^Tb bx> M-fecxt 

 ripHKp-fenjieHia rjioxHAifl, ceiiqacX) ace no 6oKaMT> ero, bmLcxo o6biqHbixx> n.tocKHXx. KJiixoKX. 

 siiHAepMhi, KJitxKH ropasAO Cojiie Kpynsbia h coiHbia, BbixaHyxwa bx Bbminay hjih jiea<ain,ia 

 OAHa HaAx> ApyroH, bt, bha^ 6yropKa hjh ho^kh. TaKx. KaKx> 3x0 KapxHHbi noBxoparoxca Ha 

 Bcixx. pasptaaxxj AaHuaro rjioxHAia,xoHacaMOMXA'feJi'fe mh bhahmx cjiiAOBaxejibHo oSpaaoBaHie 

 KOJibi^a onHAepMHiecKHXx. KJitxoKX> HeoocpeACXBeHHO BOKpyrx. npHKptnHBinaroca rjoxHAia. 

 y casiaro Kpaa paHKH noaBJiaioxoi SHaqnxejibHO fio.ite Kpynabia h KpynnoaAepHbia KJitxKH 

 ariHAepMbi, Koxopwa OKpya;aK)xx> Micxo npnKptnjieHia rjioxHAia bx. bha£ BajiHKa. BajHKT> 3toxX) 

 HaHHHaexx> uepeABnraxbca BBepxx>, x. e. AHCxajibHO oxx> KoatH njiaBHHKa, noAbiaiaacb baojb 

 CTBopoKx> paKOBHHbi rjioxHAiH. Ha npeoapaxaxi lepeai cyxKs Mbi bhahmx. cjitAywmyK) Kapxaay 

 (pnc. 75, 76): soHAepsmqecKin Ba.iHKX> o6pocx> rjioxHAia noqxn ao nojOBHHbi; ohx. cocxohxx. 

 H.jx> KJi-fexoKX, pacnojioa?enebixx> bx 2 — 3 CJioa; oxAtJibHbia IuI^xo^kh npnnoAbiMaioxca naAX> 



Skhhcse 4ii3.-MaT. Ota. 10 



