lOPCKia H HHatllEM'BJlOBHfl CEPHALOPODA C'LBEPHOH CHBHPH. 5 1 



PaKOBHHa cx BbiiiyiawMH oSopoTaMH, npeACTaBJiflK)in,Hi\]H btj ci^enin OBajiT,, c^ KHjeBi>iMi> 

 saocTpeHiewi Ha cH'touajibHOH CTopoHi n ct> cooTBtxcTByiomeH Bwp-feaKOH otl npeABTAymaro 

 oCopoTa iia BHyrpeHHeii CTopoet. Ymog hg oieHb mnpoKoe, ct saKpyrjieHabiMT) Kpaemx. Bb 

 yM6o HaMHuaiOTCfl AeBaib cnjibubixi) pe6ep^, cnaiajia yiuoHHiomiixcfl HeMHoro easaAx, noTOMi 

 npHHHMaK)m,Hx^ paAiajbeoe nanpaBjeeie n Bce ycMHBaiomnxcH ao no;iOBnHbi oSopoTa, rAi> 

 OHH nepexoAflTTj bi oKaibm c^ SoKOBt h irfecKOJibKO oTKJOHenHbm easaA^ 6yropx. IlocpeAHH'fe 

 Bn-femaen noiOBHiibi oSopoxa BOSBbiuiaeTca eme psAt 6yropKOBT), Toaie OKaibixi cb SoKOB-b 

 H sarHSaiomHxcfl BnepoAij cboomh euiuinHMn KOHuaMn; hxtj npHXCAnrcfl naib Ha ABa pe6pa, 

 H'feKOTopbie HST. nHxt npHMbiKawTb ktj SyrpajiT) rjiasHbixT. pe5epT>, Apyrie ocTawTCfl bt> npo- 

 MeHtyTKax^. SaocTpeuHaa cntoiia.ibeafl CToporia oSpaayex'b neBbicoKia KHJb ct> nonepequbuiH 

 3y5qHKaMn, qncjio Koxopbixx GoJibme "^ncjia BHtoiHnx'b 6yropKOBT> (bt> ABa h bt, ABa Ch uoio- 

 BHnoH pasa). Tawi., ta'% coxpanMacb nepjiaMyxpoBaa noBepxeocxb paKOBnebi, jientAy peSpamn 

 n BH-fcmnnMn 6yropKaMn aaw-fexubi eme cjiaSbiH, napajJiejbebm peSpaMX h Bn-feraniiMT, 6yrop- 

 Kami, GABa sawifexHLifl CKJiaAO'iKn, npoAOJiffiawmifi nanpaBjenie Be'feiiiHHXT> 6yropKOB^ n aoxo- 

 Aamifl Ao 3j6imoB'b kma. 



HiiKOxopoe cxoACXBO ct> bxhmX) B^AOM^, AOBO.ibfio, Bapo^ewi, oxAajiennoe HM-feioxi Cardio- 

 ceras kostromense Nik. (05m, reojr. Kapxa Poccin, Jincx^ 71, T. II, fig. 7 h 8) n Cardioceras 

 tenuiserrahmi (0 pp.) L oriel., ho o6a 3xh BHAa mitioTb Soji-fee xohkih h 5ojrte mhofoih- 

 cjieHHbia peSpa, a nepBbm, KpoM'fe xoro, nM-feexxj BbicoKifi h ysKin KOb, ne CBoncxBeuHbm 

 Haraeiviy BiTAy. 



Cardioceras fluctuans n. sp.? 



Ta6.ii. XIV, .PHr. 11. 



J» ||. Mtcx.: p. Ana6ap'b; kojiji. 6ap. 9. B. Toji.in 1893 r. 



PasM'fepw: 



/I,iaMexpi 25,6 mm. 



LUnpnna ywCo Mea<Ay mBaum 8,6 » 



To.iiii,HHa o^opoxa okojio 7,5 » 



Bbicoxa o6opoxa 8 » 



, tllnpHHa oSopoxa 10 » 



3x0X1. opHrRnajibebHi Cardioceras. coxpaiiHBmiiicfl, Kt coa^aji'kHiK), jinuib sb oahosh, 

 BKseMOJiap'fe MOJiOAoro Bospacxa, xapaKxepHsyexca cxpaeHofi CMtuoS CKyjibnxypbi, oxjiHqaK)in,eH 

 ero 0X1, BcfexT. nsBtcxnbix'b bwaobx. Cardioceras. Cawbie jioJioAbie oSopoxbi, DpnwfepHO ao 

 AiaMexpa 11 mm., yKparaeHbi aobojbho KpynnbiMn n p-feAKHMH yMCoHaibHbiMH peSpaMn; AaJite 

 AO AiaMexpa 14 mm. yMSouajibnbia pe6pa Hcnesaiox'b n ocxaioxcfl oienb qacxbia n xonKiji 

 BH-femDifl pe6pa, xaKX. qxo paKOBHiia cxaHOBuxca noxoffieii na C. ienuicostatuni, AaJifee Ha 



7* 



