CEM. AciPENSERIDAE.-AciPENSER NUDIVENTRIS. 
179 
OnucaHie. XapaKTepHHMB» npH3HaKOMB> 3Toro BH^a, no KOTopoMy 
ero mohcho otjihhhtb He tojibko otb» Bcfea» npe^CTaBHTejren p. Aci- 
penser, ho h otb» bcÆxb» oceTpoBBixB», aBaaeTca He npepBaHHaa 
HHEHBfl ry6a. Eokobeixb» acyaeKB» OKoao 60. Ychkh daxpoMaa- 
rae, ÆOxoÆHmie æo nepe^Haro Kpaa poTOBon mean; hxb» ocHOBame 
aeaCHTB» HËCKOJIBKO 6aHace KB> pTy, H'ÉM'B KB> BepmHHÏ ppiaa. Bepx- 
Mfl ryda cb» HeôoaBmoH BBreMKOH (ho Bce ace He npepBaHa). Bepx- 
HM HeJIîOCTB C r B H^aBHEIMa» KpaeMB», HHaCHHH-CB> HeÔOJIBinOH BH- 
eMKOH. Peuio y HeôoaBnraxa» 9K3. 3aocTpeHHoe, y KpynHLiXB>—H'Ê- 
ckojibko 3aKpyrjieHHoe; cb> B03pacT0MB> piiao yKopaHHBaeTcaj maHHa 
pnaa y He6ojiBmHXB> 9K3eMnaapoBa> paBHa 3araa3HHHHOMy npo- 
CTpaHCTBy roaoBBi, a y 6oaBmHxa>— ptiao CTaHOBHTca æo 1% 
(y «N°12934 bb» 1. 6) pa3B> Kopôaè 3araa3HHHHaro npocTpaHCTBa. 
ITI,htkh Ha parafé BecBMa MHoroBH.cjieHHBi h TfécHO conpHKacaiOTCH. 
üepBaa cnHHHaü acyana ohbhb BeaHKa h npHMBiKaeTB, naoTHO 
k'b saTBTJioHHOMy njHTKy. CnHHHLiH acyHKH y h e6OaBIHHXB» 9K- 
3 eMfiaap OBB> OKaHBHBaiOTCH OCTpiOMB», HanpaBJieHHLIMB» Ha3a;n;B>, 
y ôojtbhihxbj 9K3. HaBepxy acyaeKB» — khjib, OKaHHHBaioiiÛHCH 
Ha3aÆH Tynofi BepxymKOH. Meac^y chhhhbimh acyaKaMH ^aace ’y 
ÆOBOaBHO 6oaBHIHXB> 9K3. (eN° 13209, ÆÆHHa 950 MM.) OCTaiOTCH 
KoacHCTBia aonacTHHKH, ocTaTOKB» nepBHHHaro Hepa3,n;féaBHaro 
naaBHHKa. Bokobbih acyaKH HMféroTB» nonepeBHO-poMÔOH^aaBHyio 
<£opMy h y ôoaBHiHXB, 9K3eMnaapoBB> CHaôaceHEE e^Ba 3aMféT- 
hbimh mHnaMH (y MoaoÆHxn mHnBi Ha 6 okobbixb» acyaKaxa» hcho 
BH paaceHu). 
BpiomHHH acynKH y KpynHBixa, 9K3eMnaapoBB> MoryTB» coBep- 
meHHO He^ocTaBaTB (Hanp., y 3M1 11785 ÆaHHoiï 1620 mm.). Tféao 
Meac^y pa^aMH acyaeKB» noKpBrro oaeHB MeaKHMH pa3po3HeHHBiMH 
3epHBimKaMH; Ha ôpionmoH CToponfé nocafé^Hia ch^rtb ryme; ho 
HHor^a Ha Tféafé Meacjiy pa,n;aMH acyaeKB» coBcféMB» HféTB» 3epHBi- 
meKH (y 9K3. H3b> Kypar ^anHOH 1960 mm., npe^CTaBaaion];aro nonra: 
3pféayio caMKy, noHMaHHyjo 12 anpféaa, Ha Tféafé HféTB» sepHainieKB», 
Tor^a KaKB» y noHTH 3pféaaro caMn;a, noHMaHHaro TaMB>ace Toroace 
BHcaa, ,n;aHHOH 1505 mm., Tféao noKpBiTO 3epHBimKaMH; y #pyrnxa> 
nOBTH nOaOB03p , iaHXB> CaMOKB» Tféao OKa3BIBaeTCH nOKpHTBIMB Mea¬ 
KHMH 3epHBiniKaMH: 12. IY. 1909, 1840 mm.). 
IHhtkobb» (naacTHHOKB>) Ha Tféafé Meac^y pa^aMH acyaeKB» He 
6HBaeTB>. üaacTHHOKB) 3a Z) HféTB»; npe^B. Z) h A HHor^a ôaraaioTB». 
3a A h'Êtb» naacTHHOKB>. IlepBaa XBOCTOBaa ÿyaBKpa (KaKB» cnHH- 
Haa, TaKB» h 6piomHaa) He yBeanaeHa. ffinna» rpy^Horo naaBHHKa 
12 * 
