130 
CEM. ACIPENSERIDAE. 
= Acipenseridae Günther. Cat. Fish., VIII, 1870, p. 332. 
= Acipenserinae (subfam.) -+- Scaphirhynchinae (subfam.) Gitx. Families 
and subfam. of fisbes. Mem. Nat. Acad. Sc. Washington, VI, 1893, p. 138. 
YftÆHHeHHoe, BepeTeHOo6pa3Hoe tPjio noKpHTO naTBio pa;n;aMH 
KOCTRHHxrb acyaeKn: oæhhmh — ciihhhhmT), ÆByMH — 6okoblimh h 
ÆByMJi — bpiomHHMH (bpiomHHH acyuKH HHor^a y oaeHB CTapHxn 
ocoben Hcae3aiOT'B); MeacÆy pa;n;aMH acyaeKn oôhkhobghho pa3- 
cliHHH MeJEEda KOCTHHHH 3epHHIHKH H KOCTHHHH naaCTHHKH 
(duhtkh). TojiOBa noKptiTa cBepxy conpHKacaiomHMHCH hjih noara 
conpHKacaiomHMHca ko CTaHHME n^HTKaMH. Pbijio ysjiHHeHHoe, ko- 
HHuecKoe hjih jionaTOBHÆHoe. Poth> Ha HHacHen ctopohF rojiOBEr, 
HHor^a aacTbio nepexo^am;iH h Ha 6oKa, bh> bh^ nonepeuHOH 
mejiH hjih nojiyKpyrjiEiH, onoacaHn Ma chcthmh rybaMH. Ha HHacHen 
CTopoH'h pmia 4 ycHKa Bb nonepeuHOMH pa^y. HejnocTH bhæbh- 
raiomiaca, y BspocjiHxn be3n 3yboBn; HHor^a y Bspocjreixn bn- 
BaiOT'B 3aaaTOHHEie (BHÆHne jihihb btb Jiyny) 3ybn Ha Hebli *). Tjia3a 
cpaBHHTe jibho Majiu. H3H KpHmeuHHXH KOCTen HM-ieTca tojibko 
operculum. 4 acabpn. Pseudobranchiae MajiH hjih oTcyTCTBy ioth, 
ÆobaBOUHHH aîabpn (onepKyjiapHua) y o^hhx'b xopomo pa3BHTH, 
y ^pyrnx'B nouTH peÆyrçHpoBaHH. IKabepHHH thuhhkh HeMHoro- 
HHCJieHHKi. H'hTTb JiyaeH, noÆ;n;epHCHBa:Eom;Hx r b acabepHHH nepenoHKH. 
SCabepHua nepenoHKH hjih npnpomeHH kh isthmus, hhh Ha 
sa^HeMa, KOHp'h cpocTaioTca Meac^y cobon, obpa3ya CKJiaftKy no- 
nepeKTb istbmus. HenapHBie naaBHHKH ch fulcra. nepBHUHHH 
poMbHaecKia aemyn coxpaHaiOTca tojibko Ha BepxHen jionacTH 
xBOCTOBoro naaBHHKa. Ilepe^mH jryan rpy^Horo naaBHHKa chjibho 
yToameHH h npeBpameHH bh KOJiiouKy. Chhhhoh naaBHHKH ÆajieKO 
no3asH. naaBaTeaBHBiH ny3EipB y o^hhxh xopomo pa3BHTa>, y 
^pyrnxH py^HMeHTapHHH, coe^HHeHH en acejrysKOM'B hhh nnme- 
boæomh. Pebpa xopomo pasBHTH. 
CncTeMaTMKa. CeMencTBO Acipenseridae bh tomh obneM-i, bh> 
KaKOMH mh ero Tenepn noHHMaeMn, bnjio BnepBne ycTaHOBJieHO 
bh 1825 roary JIatpehhemh (Latreille) bh ero hsbèêcthoh KHHr'h 
„ Familles naturelles du règne animal“ no^n HMeHeMH „Gymno- 
rhynques^, npnaeMH oho bnao OT^aeHO oth ceMeficTBa „Phyllo- 
1) N. Zograf. Note sur l’odontographie des Ganoidei Chondrostei. Ann. 
Sc. natur., Zool., (8), I, 1896, p. 197—219. 
