232 



KpoBeHOCHaa cHCTeiwa coctoht'b H3t> cnHHHaro h ôpiom- 

 earo npoiiojîbHbixT) cocyaoBT) ct> nonepe^HbiMH, oneub 

 H3BHJHCTbiMH cocy/iaMH Bt Ka^OMi) cerMeHT'E. Bt> 7, 8 

 ei 9 cerMeHT'B sth nonepeHHbie cocyiibi pacmepeHbi, ho 



Ha CKOJIbKO il MOrB yÔ'BjieTbCa y H'BCKO.ilbKRX'L JKHBblXt 

 9K3eMnJIHpOBT>, MHOK) H3CJI*BilOBaHHtIXT), nyjbCHpyK)TT> He 



TOjibKO 3TH pacujupeHHbie coeyabi, ho h bcb ocTaJibebie 

 nonepe^Hbie cocyiibi bo Bceivn> TisjrE. KaKT> to, Tain> h 

 «apyroe 6BiBaeTT> y Oligochaeta. PacuiEpeme cocyjioB'b 

 bt> 7, 8 h 9 cerMeHTaxT) 3aM , BHaeTea y Tubifex, Limno- 

 drilus h Clitellio, ho y hhxt> nyjbcnpyiorb He bcb co- 

 cyjibi; nyjibCHpoBaHie cocyjioB^ bo bcbxt> cerMeHTax-b 3a- 

 M"B4aeTca y .apyron rpynnbi, ktj KOTopofi Kjanapejrb ot- 

 hochttj Lumbriculus Grube h Stylodrilus Clap. 



CerMeHTajbHbie opraHbi mh'B y^aBajiocb BHiTETb bt> pa3- 

 hb^x^ cerMeHTaxi>, h 0xt> HapyjKHbia OTBepcria nacTo 

 BecbMa aBCTBCHHbi . EHOi\na bth OTBepcria jieîKarb Ha Ma- 



JieHbKHXT> B03BblIUeHiiîX r b KOJKH, npeflCTaBJiaiOlHHXCa Bt 



bha'b npyrjibix^ m TynbixT> cocohkob'b. KpoM'B 3tmxt> ot- 

 Bepc™ Ha MHorHXT> ceraieHTax^ aaivrETHb] em,e npe3Bbi- 

 ^aHHO HeôojibLuie, coBepinetiHO npaBHjibHbie KpyjKOHKH. 

 4iaMe , rp'b hxt> paBeHi> 0,004 mm. Hxi HapyjKHbiti koh- 



Typi> «BCTBeHHO ABOHHOH; BT> H.eHTp'E MXTï SaM'BHaeTCfl 



enj,e MeHbuiin KpyjKeirb. Ha eHbixT> cerMeHTaxT> ohm pac- 

 nojioHîeHbi ao nam b-b oahh'b paxh Ha ôpioiHHoii CToponfe. 

 4to 3'io 3a vkâbixa, CKa3aib oneHb TpyAHo. 



IIojioBbie opraHbi a Morb oTbieEtaTb, TaKij KaKi> sepBw 

 nonajiajiHCb mh*b B r b anp'BJi'B M'fccaH.'B, yjKe AocTuruiHMH 



( l ) KpoBb y Haiiiero nepBa h-pacnaa, ho npn3HaKi> ochob3hh lih Ha 

 UBliTt KpoBH ynoTpeô^eHi. bt> KwiaccH*HKauiH K.iauape^a «itiiub 

 AJin OTJiunm Enchytraeus on» Pachydrilus, BuponeMij h -ryi-h Me»c/iy 

 BH43MM Pachydrilus ct> KpacHOio KpoBbio Kjaua|ie4"i' oiiHcWBaeTb 

 P. lacteus, HMiiomaro KpoBb 6e3HBtTHyio. 



