nOaOTfl-BJTC. CoLYMBOMOKPHAi:. 3 



cbaft. ITocrfaHifi imnieTï. 1 ): „The pelvic girdle and limb, in 

 eoinmon with the rest of the skeleton, of this bird", — t. e. Hcs- 

 peronis — „are, as is well-known, almosfc indistinguishable from 

 those of the modem Colymbi. Indeed, when we eliminate the pré- 

 sence of teeth, the Ratite sternum, vestigial wing, and complète 

 ilio-ischiadic fissure, the only points of différence appear to be 

 such as serve to distinguish species one from another". Bct npn- 

 3HaKH, HanoMUHaiomie CTpaycOBH,n,HbixB, nnoo oobhchîiiotc.!i hh3ï;oh 

 ct\ nenBio pa3BHTin, Ha KOTopon cïost'b Hesperornith-es, jiuoo Haxo- 

 jaTCîi bt. Koppe-naniii et noTepeiï cnocoônocTU aeTaTt. Bb Hespe- 

 rornithes mbi ;hoji;khbi buttbtb Haadojrle npuMirrnBHBEKB hsb neo- 

 rnaTB, a noTOiry OTKpBiBaTB pn^t OTpa^OBt njieHHO min. Cn.iBHoe 

 pasBnTie n cpopMa KHeMia.iimaro OTpoCTKa 2 ) oômn hmb cb rarapaMH 

 h noraHKaJin n He BCTp-h'ïaiOTca hh y o^hoû ^pyroiî iithiih. 9Ta 

 ocooeHHOCTB xocTaTomro onpaBHHBaeTrb coeanHeme sthxb TpexB 

 rpynnB bb ojjhhb. kojiit.tckcb — superordo, KOTopuâ: a Ha3HBaio 

 Chemopygopodes. 



Bb> oomeiiï. Urinatores mm rarapn, ôjuiace kb Hesperorniihes, 

 nfniB Colymbi nm noraHKn; mh nepefl^eMB. nooTOJiy kb nepstisiB. 

 Hbih-é iKHBy'mia rarapti ^ojiHtHBi npeflCTaBMTB HOB'Miiiyio bbtbb 

 BecBMa speBHaro CTBoaa; 3a sto roBopnTB npejKse Bcero bxb reo- 

 rpacpimecKoe pacnpocTpaHeHie — bcb ohê cBoiiCTBeHHBi yirspeH- 

 hbimb n xojiohhhmb ^lacTHMB apicroren. ^a.TÈe 3to noATBepacAaeTca 

 riai, ^ito b-b HCKOnaeMOMB cocToaHinrarapHnsBhcTHHHepaHBme 

 miioiieHa; BepxHe-soneHOBBiâ (AHraia) Colymboides anglicus Lt- 

 dekker n HiiHCHe-MioneHOBBifi (Opannifi) C-cles minutus M.-Ed\v. 

 cmiTaiOTca 3 ) 3BeHB!um, coesuHatonriiMii rarap^ cb noraHKaMH. 

 Meac^y Hesperornis n Urinator cymecTBOBanB, cjrhaoBaTeaBHO, 

 ;;,jiihhbih pajrB ipopMB, ncqe3HOBeme kotophxb HOCTaïOiHO 66b- 

 acHseTB naMB n cyrnecTBeHHHa oiviu'iin hxb otb Hesperornis, n 

 o6oco6jieHHOCTBperj;eHTHHXB rarap-B,KaKB rpynnBi. OneHBÔJinsKaro 

 po^CTBa y rarapB hetb, KaKB yBn^mnB mince, ^sl'mb cb noraHKaMH, 



HO KB 3THMB Offh no Kpaîmefi M'tp'B 6jiniK6, lÊMI. EO BCBMT. OCTajIB- 

 HBIMB HBIHE JKHBymnMB IITnn,aMB. QTflaaeHHBBMB pO^CTBOMB rarapsr 



1) Proc. Zool. Soc. London, 1899, p. 1040. 



L') Ptckaft (1. c, p. 1040) MirrneTT. ero HeodEraaÔHO yfflHHeHHHM'B 

 :aiii.[iH30Mï. BepxHHro KOHiia roaeiui. 



3) Ltdekker, Cat. Poss. B. Brit. Mus., p. 192, 1891.-Beddard, Str. & Clas- 



sif. B., p. 390, 1898. 



I* 



