18 ^. n. HABJIOBT). 



UoKOTi^nxh', Ammonoidea. 



Poah: Polyptyehites, Euryptyehites, Tollla, Simbirs- 

 kites (?), Temnoptyehites. 



Polyptyehites diptychoides n. sp. 



Tafiji. Ill, <i.iir. 1. 



Is llf. MfecT.: p. AeaGapx; kom. Cap. 3. B. Tojijih l.'=*9r. r. 



9totx aMMOHHTi Gbwb uaLVinewh bi AByx^ oxAtJibiibixx KycKaxi, Koxopbie ipyAno 61.1J10 

 iipnauaTb 3a npniiaAJieatamie OAeoMy dKsemanpj. Oahhi h3i hhxi coctoajx h3T. BnyTpennflro 

 oOnpoTa H npHKptnjieHnaro k^ eewy HeSojibuioro KycKa napyjKnaro oSopora. Bi xanoMi bhaI'. 

 dTOTb KycoKi 6bijx H3o6paJKeHi Ha pncyHKaxb, iipHroTOB.ieHUbixTj hah A. 0. MnxajibCKaro, 

 KOTopbie Mbi 3A'fecb BOcnponsBOAHMT. (pnc. 1 c n Id). OcrajibHaflHacTbuapyjKHaroo6opoTa6biJia 

 H3o6paateHa oTAiiJibeo c6oKy. 9tott, oiAtjibHbiH pHcyaoKi mm saMtefleMi H3o6paateHieMT, ut- 

 ji&ro awMOHHra, Ha KOTopoM^ BHyxpeuHiH o6opoxb CKpwxi. doatj HapyatHbiMi), eo 3HaiHTe.'ibHan 

 qacxb ero BWAHa Cb npoxoBonojoajHOH cropoHbi panoBnebi, Koxopyio Mbi hg H3o6paHtaeMi, xekt. 

 KaKi poc. 1 c H 1 d AOCxaxo^HO nepcAaioxi nposuaKn BHyxpeeBHro ooopoxa. 



Pa3Mtpbi: 



BHyTpeHHJfi o6opoT'B. Hapy>KBi>iri o6opoTT>. 



/I.iaMexp'b o6opoxa 40 mm. /I^iaMexpi o5opoxa 64 mm. 



/I,iaMexp^ yM6o okojio 12 » /^,iaMexp^ yMoo 17 » 



TojimHHa oSopoia 24 » TojioiHHa o6opoxa 37 » 



Bbicoxa oSopoxa 9 » Bbicoxa oSopoxa 13,5 » 



UlnpHHa oSopoxa 16 » UlnpHtia oSopoxa 25,5 » 



PaKOBHHa Cb y3KHMT. II oyGoKHMi yM6o n ch OKpyobiMH oSopoxaMB, HacxoJibKO o6T>eM.iiio- 

 mHMH, 1X0 nocjitAHifi H3T) HHXT) CKpbiBaexi npeAbiAymifi AO caMaro yMfionajibHaro Kpaa, xaKx 

 qxo yM6oHajibHafl noBepxHOcxb HMtexi ne ciyneHqaxbiH a noixn BopoHKGo6pa3HbiH xapaKxepx. 



PaKOBHHa yKpamena cnjibHbiMH neMHoro HaKJioneoHbiMn BnepeAT> pe6paMH, Koxopbie, na- 

 qHHancb Ha yM^onajibHOH noBepxeocTH, oepexoAaxij lepeai, 3aKpyrjieHHbiH yM6oHajibHbiH Kpan 

 H, AOcrnrnyBi nojioBHHbi umpHHbi oSopoxa, pasA'feJiflioxcfl Ha ABt b^xbh, a HaiHHaa ch Aiawexpa 

 54 MM. nojiyqaiox^ em,e rpexbio BtiBb, oxA^JiflioinyiocH oTb peSpa c^ nepeAHefi cxopOHbi sna- 



