iioæotp. Selachoidei. 
47 
a. T'fejio BepeTeHoo6pa3HO. SCaôepHEia OTBepcTia h 6pBi3rajiBii;a 
(spiraculum) jieæaTT» ch ôokobh rfejia. Xboctoboh njiaBHHKn xo- 
pomo pa3BHTi». Selachoidei. 
aa. Téjio chjibho cnjnom;eHo CBepxy bhhsh. SCa6epHKa OTBepcTla 
BHH3y, 6pï»i3rajiBiia HaBepxy. Xboctoboh njiaBHHKn OTcyTCTByeTH 
hjih cjiaôo pa3BHTŒ.. rpynHEie iLJiaBHHKii oqeHB BejiHKH . Batoidei. 
ÜOAOTpHA'i* Selachoidei (Pleurotremata). Any^iLi. 
Thjio BepeTeEfoo6pa3Hoe, He npHnjnocHyToe CBepxy bhh 3 h 1 ). 
TECabepHEui oTBepcTia, hhcjiomh 5 — 7 , en 6 okobh Thjia, nocji'Ê^Hee 
— Bnepe^H rpy^Horo njiaBHHKa hjih Ha;n;n 0CH0BaHÎ6M r b rpy,n;Horo 
(HHor^a ;n;Ba nocjrhÆHHxn HaÆn ocHOBameMn rpy^Horo). Ilepe^Hin 
(nponTepnriajibHEiH) Kpan rpy^Horo njiaBHHKa cbo 6 o^;hhh (He 
npHKphnjieHn kh 6oKaMH Tbjia hjih tojiobh). Kpaa rjia3n cbo- 
ôo^hh. Radialia rpyÆHEixn miaBHHKOBn He pa3;u;BoeHBi, coctohth 
H3n He6ojn>moro HHCJia cerMeHTOBH, oÔBiKHOBeHHO tojibko nepe^;- 
Hie ^.ocTHraioT'B CBodo^Haro Kpaa njiaBHHKa. 064; hojiobhhbi CKe- 
JieTa rpy^Huxrb KOHenHOCTeii HaBepxy He coe,n;HHHiOTCH hh ÆpyrB 
CH ^pyrOMTb, HH CH n03B0HOHHHKOMB. üpeopdHTajibHHXH xpamen, 
npHKp'ÉnjieHHHXH kh odoHHTejibHOH Kancyjrb, h^tb. Palato-quad- 
ratum CH OTpOCTKOMB, COHJieHeHHBIMB HJIH COe^HHeKHEIMB CBH 3 K 0 H 
ch OGHOBaHieMH nepena. KaKB hyomandibulare, TaKB h cerato- 
hyale HecyTH xpmii.eBBie acabepHEie Jiynn; ceratoliyale coctohth 
H 3 H o^Horo xpain;a ? npHKphnjieHHaro kh HHHCHeMy KOHny hyoman- 
dibulare. üo 3 bohkh nepe^HeH nacTH no 3 BOHOHHHKa He cjiHBaiOTCH 
Meac^y co 6 oh. 
C. Tate Regan, KOTopoMy mbi cjrÊffyeMH bh no^pas^'bjieHiHXH 
Selachii, ^jihth no^OTpn^H Selachoidei Ha cjrïmyiomie Tpn 
OT^hjia: 1 ) Notidanoidei (ceM. Chlamydoselachidae h Hexanchidae); 
2 ) Galeoidei (ceM. Odontaspidae, Lamoidae, Orectolobidae, Scylio- 
rhinidae, Carchariidae); 3 ) Squaloidei (ceM. Cestraciontidae, Squa- 
lidae, Squatinidae 2 ). 
Hnace npHBO^HTCH HCKyccTBeHHan Ta 6 jmn;a æjiii onpe^hjieHiH 
ceMencTBH pyccKHXH Selachii. 
1) Tojibko y p. Squatina (ceM. Squatinidae) rÉJio npmuiiocHyTO. 
2) Cm. C. Tate Regax. A classification of the Selachian fishes. Proc. 
Zool. Soc. London, 1906, p. 722 sq. 
