Aono/utemn h HcnpaB/ieHis. 
Kn CTp. 11 —'45 (ceM. Petromyzonidae). 
Kor^a 6ojrbe hojiobhhbi HacTonmeii paôoTBi 6 bi«jio yace Hane- 
naTaHO, BEnmia bh cb4>th CTaTBH O. Tate REGAN’a: „A synopsis 
of the Marsipobranchs of tbe order Hyperoartii“ (Annals and 
Magazine of Natural History [8], VII, 1911, february, p. 193 — 204), 
eh KOTOpon ^ams o63opT> Bcero ceM. Petromyzonidae. 
ABTopn npHHHMaeTn Bcero 8 po^OBn: Mordacia , Geotria (==Exo- 
megas), Eetromyzon ( [=Eathymyzon; JB. bairdi Gill PnroHn cnnTaeTn 
chhohhmomh P. marinus ), Iclithyomyzon , Gaspiomyzon , Eudontomyzon 
Regan, Entosphenus h Lampetra. 
in po;n;a Entosphenus aBTopn ftaeTH xapaKTepncTHKy, chhbho 
OTjmnaiomyiocji ott> o6m;enpnHB:Ton:, ^aHHon mhoio Ha CTp. 12 h 
44; aMepnKaHCKie aBTopbi CHHTaiOTH æjih p. Entosphenus xapaKTep- 
hbimh npncyTCTBie Ha BepxHenejiiocTHOH njracTHHK’b Tpexn 3y6oBT> 
(a He ^Byxn, Kaicn b h p. Lampetra). Meac^y t4mt>, T. Regan 3 a 
OTjmnHTejiBHHH npH3HaKn p. Entosphenus npHHHMaeTn pn^n Mea- 
khxh 3y6oBn (HHJKHie ryÔHbie 3y6Er, cpaB. BBime, CTp. 28, pnc. 6, 
n. i. «?.), Hftymiâ no HHÿKHeMy Kpaio ftHCica n coe,n;HHmoni,iH HHJKHie 
1131* BHyTpeHHHxn (6oKOBBix r i>) rybHEixn 3y6oBn (eu. i. 3.] Regan 
nasBiBaeTn nocjrb^Hie „ enlarged latéral teeth“). Y po^arne Lampetra 
TaKoro pn^a 3y6oBn, no PeraHy, h^th. 
O^HaKO, 3TOTB npH3HaKH HHCTO HH^HBH^yaJIBHHH, HMH He«HB3H 
xapaKTepH30BaTb He toæbko po^Bi, ho ^aace h bh^bi; Ha CTp. 28 
mhoio bh xapaKTepncTKb Lampetra fluviatilis cica3aHo: „HHmHie 
rybHBre 3y6si oæhoidhahbi (hxh nacTO cobc^mh HbTn)“, a Ha pnc. 
6, Ha toh ace CTpaHHD; r b, H3o6pa‘/KeHa poTOBan BopoHKa HeBCKOii 
$ayna Poccin. Phôbi. 21 
