501 



BepmnHOH) CprouiHoM CTBopKH, — npH3HaKT>, KOTopLifi em,e 

 Cojrfce côJiHacaeTi) ee ci poAoïvn» Rhynchonella (cm. <j>0r. 

 2). DpHcyTCTBie jiejibTHAiyMa y nepMCKaro BH.ua um-bctt, 

 em,e h jipyroe BaHŒoe 3HaHeme: no chxi nopi> MejK,ay 

 pHHXOHejuiflMH apeBHaro n cpe/maro nepio^OBt ôbuo cy- 

 mecTBeHHoe pa3JinHie, cocToaBinee bt> OTeyTCTBin &eâb- 

 TniuyMa y nepBbixt h bt> nocToaHHOM'B npncyTCTBin ero 

 y BTopbix'B; Rhynchonella Geinitziana, bt> 3tomt> otho- 

 uiemn, cBaabiBaerb MeîK/ry coôoio jiBa rpoMajiHbie nepio- 

 Aa h, TaKHMT) o6pa30Mi, cjiyaîHT'b HarjaAHbiM'b npnM-ÈpoMi 

 h Han.ayquiHM'b iioKa3aTejibCTBOM'b, hto bt> ncTopin 3eMJH 

 cyn;eeTByeT r b HenpepbiBHaa CBa3b memjxY bcemh ea ot- 



A'BJiaMH . 



Athyris Hoyssiana Keys. 



Spirifer (Spiriferina) cristatus Schl. Haurb 3K3eMnjrap r b 

 npeiiCTaBJiaeT'b pa3HOBHimocTb ci HanôojibuiHMi HncjioMT> 

 CKJiaiiOKT), no 6 ci KaîKAon" cTopoHbi (cm. <J)ht. 3). 



Strophalosia horrescens Vern. 

 Productus Cancrini MVK. 



Pa3pain> Acephala ÔoraTi cjrEjryiomnMH BHjiaMn: 

 Allorisma elegans King. 

 Lucina minutissima d' Orb. 



Schizodus truncatus King. Hainn 3K3eMnjiapbi mm'Eiot'b 

 Hanôojibuiee cxoactbo cl Schizodus Rossicus Vern. 

 Arca Kingiana Vern. 



Nucula tricialis Eichw. (Lethaea Rossica, p. 995). j\o 

 cviXT) nopi), OHa HaM^eHa ôbua TOjbKo okojio Ka3aHn; 

 mh'ë yjiajiocb saM'BTHTb ee TaKîKe mernuy nepMCKHMn hc- 

 KonaeMbiMH h3t> MypoMa, xpaHaiirnMHca bt> MHHepajiorH- 



HeCKOMT) KaÔHHeT'B MoCKOBCKarO YHnBepCHTeTa; TaKHMT> 



o6pa30Mi> ? oKasbiBaeTca, hto bh;tl 3tott> HM-Eerb flOBOJib 



