20 



A. r>0PIICÎIKT>. 



hijtch, ecjin npn3HaTL cymecTBOBanie tetartocon'a h y Broporo jioîKHOKopeniioro — HMemio, 

 m> Bnjifk Toro MOiiparo ôyropna, KOTopbiiî 6burb oimcairb Bbime, KaKT> deuteroconus; KaKi> 

 cleuteroconus, npiiUeTca b-l TaKOMt c-iy^at pa3CMaTpHBart B3AyTie KOHua iiepeAHaro rpeôHn, o 



KOTOpOMl ynOMHHaJIOCb, H TOr^a npOH,eCCb II3MT>HeHi& BT> KOpOHKT> JIOJKHOKOpeHHblX'b, HAfl 



cnepeAH Ha3aAt, ott. P 2 P 4 , ôyAeTi BbipajKaTbca He bt> OTAtaemii deuterocon'a orb tetar- 

 tocon'a, a BT> iixï> nocTeneHHOMi) Bce ôojbiueM'b ciiflHin npn OAnoBpeweHHoivrb yBeragemu pa3- 

 MtpoBij deuterocon'a. Hejibsa He npa3HaTb, wro cpaBHeme P 3 h P 4 cnopÈe roBopnrb btj uojibsy 

 3 r roro npouecca, weet* Bt nojb3y pasABjenia dtaxt, ajieMeHTOB'b npn oah o Bpe me h h o iwl yBejm- 

 nemn tetartocon'a. 



KapTHHa pa3BnTia JOJKHOKoperMbix'b bt> TaKOivit cjiyqa'È AOJiïKHa 6birb coBepmeHHO nepe- 

 CTpoena 1 ). 3thmt> yKasameM'b noAHmaeTca qpe3BbiqaHH0 cjioîkhbih h rpyAHbrâ Bonpocb; pa30- 

 6parbca Bt Henn> mojkho TOJbKO nyTeMT. nepecMOTpa oatcrniecKaro Maiepiajia, KOTopbiâ ne 

 mojkbttj 6biTb cefhacb AOCTyneiiiî. 



Ecjih ocTaTbca Ha nowfe naô'jiOAaeMOM Mop<i>ojioraqecKOH KapTinibi, to HaAO npn3HaTb, ^to 

 iiomhmo ôojbmeË MOAeJunpoBKH 6'yropKOB'b OHa bt. 3HaiHTe.ibiioii CTeneHH OTJinqaeTca ott> 



THDimHOH, KOTOpyK) npeACTaBJiaiOTT> JOiKHOKOpeHHbie CpHMHTHBHblX'b HOCOpOrOBl), CnJIbHblMT) 



pa3BirrieMT) BnyTpcnnaro ôyropna, c.iaôi,iMH noiiepeMiibiMii rpeÔHHMH, TpeyrojibHbiMT,, ho Haupa- 

 BJieHHbiMib «imiOTeHyaoH» bt> ouparuyio CTopoHy o'iep'ranieMb nepBaro JOîKHOKopenHoro, n 

 oojibuieîi oôineË npaBHJibiiocrbio, OAHopoAHOCTbio kopohkh y bcext> sjôobij. 



Ecjin OTjmqubi ott> THininubix'b HocopoatbHX'b JOîKHOKOpeiiHbie, to nepeAHie 3yôbi hhaph- 

 Korepia OTjunaiOïCfl bt> euie Cjo.iLiueii CTenerm. Kjbikh nxi> KpyiiHte pfouoBi-., — MeacAy tem^ 

 KaKTî y HOCoporoB-b ohh BcerAa yjue MeHbuie hxt> 2 ), AaJKe y Trigonias. 3aTf>M , b, caiviaa «sopuia 

 KJibiKa HHApHKOTepia, MaccHBHaa ero KopoHKan B3AyBaioiii,iHCH KopeHb He nivreiorb ce6Ê 6jimmx%, 

 sa ecMmeeieMT) pa3B r fe oahofo syôa, ornicaiiiiaio RomaivoMb 3 ), Koxopbiii, OAHano, otljiaAaerb 

 iiecpaBHenHO Mente B3AyTbiM r b KopueMi». 



Hto KacaeTca pfeiiOBii, to y ii3B-ECTiibixT> ApeBHbHmux'b «fcopM'b, He roBopa y me o HepaBHofî 

 B6JiH l HiHt> pa3JHqiibixi> nap-b MejKAy coôok), ohh iiM-feiorb, BOo6u],e roBopa, ôojte cnjiiomeHHyK) 

 ci ôokobT) h cooTB'ÈTCTBe hho Sorte BbiTaHyTyK) bt> A-iHHy, KopoHKy, ctj ptia{ym,HMT) nepeAHHMi> 

 h 3aAHHMi» KpaeM'b ; maKymKa oôbi^HO 6ojte uptiABiiHyra wh nepeAiieMy npaio 4 ). 



Ecjh oSpaTHTbca kt> ApyrHMi. AByMi> ceuencTBaM'i. Bhinoceroidea, Byracodontidae h Amy- 

 nodontidae, to yace yKa3bmajiocb Bbiuie, no^eMy, HecMOTpa Ha cboïï npnMHTHBHbie npn3HaKn, 

 HHApHKO-repiH ne MQJKerb 6biTb OTneceHi) m, KaKOH-jin6o H3t> 3Thxt> yK.ionaioui.nxca rpynn'b. 

 ôojite AeTajibHaro cpaBHeHia npniujiocb 6bi pa3CMaTpaBaTb KaacAyio <i>opMy bthxtb ceMencTBi, 



OTA'EJIbHO, TaKT> KaK-b, nOBHAHMOMy, OOJIbUHIHCTBO BXT) CTOHTb H30JHip0BaHH0 Apyn> 0TT> APyra. 



1) HacKOJitKo «KJiaccHMecuafl» TOMica spima He Bcer^a 

 AaeTi> y^oBjieTBopiiTejiLHoe TOJiKOBame, mojkho cy^HTB no 

 npHM'li'iaHiio, KOTopoe ^•fejaeT'B Depéret kt. cBoeuy onn- 

 cairiio 3y6oB-b jiooioAOHTa: cm. Depéret, Lopliiodon du 

 Minervois, Arch. M. Lyon, IX, p. 8. 



2) Osborn, Extinct Khiuocer.. p. 131, ng. 34. 



3) Roman, 1. c, p. 56, fig. 3. 



4) Cm., nanp., Osborn, Extinct Ehinocer., p. 147, 

 fig. 44. 



