ANSEKI>M<: — THE CICKSK - CHEN. 



435 



greuuinh bluck, saircely k'"-*\v ; l>iiast with ft larj,'!- central irrf},'ulftr patch of dark chfutuut ; 

 I risHuni ochmccoiiH bull". 15111, !»•;,',«, and let I red in lilc. Winj;, 14.75 inchuH ; culiiion, l.U() ; depth 

 of bill at Iwc, l.(Ht ; tarsus, 2.!».") ; middle toe, ^.M. 



The followiuj,' is the primipal synonymy of tin- spccicn ; — 



Chenalopex • aegyptiaca. — Iviyi'TIAn Ooohe. 



Atuis irgijptiaca, Linn. S. N. fd. 12, I. 17t!ti, l!t7. 



ChetMluiM-j: mjijjiliiicii, Siiii'ii. (ii-n. Zool. .\1I. 18-.'4, 43, pi. 42. — IJoNAP. Conip. Li.st, 1SJ38, 56. — 

 Kkyh. k Ui.v.s. Wiib. Kur. lS4o, 84. — .MAi(iii,i.. .Man. II. 153. — Gkav, (icii. 15. 111. ]84», 

 605 ; fat. Hiit. H. 18t>3, 183 ( i;nf,'liiud ; two iii.slaiircs). — Akih'U,ht, Hull. N. O. C. II. Apr. 

 1877, 52 (Caniarsic, Lonj,' l.slainl, N. Y. .Ian. 3, 1877 !). 



Annsvurid, ISkiilst. Orn. Tn.sLlnMib. II. 1803, 4.">4. 



Egyptian Ooose, Yauk. Brit. B. id. 2, III. 173, lij,'. ; ed. 3, III. 177, fij?. 



Genu.s CHEN, lioiE. 



Chen, BoiK, Isis, 1822 (tyi)c, Anxr hyitfrUtrcus, 1'am.as). 



EMtnthcvwps, ELi.ior, Pr. Philnd. Acad. 1868, (ly|«', Anser Rnssii, Baiup). 



Of the three North American sjiccies of this ^'enus, two, C hjiperhnrem, the type, and C. rnru- 

 Uscem, ore precisely alike in the detail.^ of form, the only difference being the colorulion, which is 



v>liA^^, -^. 



C. hy)>erbttrens. 



very distinct in the two ; the tliiiil s])efies, C. A'ox.s/, while ajireeinj,' strictly with A. hyperhnrens in 

 plumage, both in the adult and young stages, diller.s decidedly in the form of the bill, wliich is quite 

 p(!culiar. It seems unnecessary, however, to adopt the generic term E.mntUcmnfg, proposal for 



' (Jliennlopcx, Stf.imiknh, .Shaw's (Jen. Zonl. XII. ii. 1824, 41 (type, Anurr juhtilus, Si'IX. — Sri,. & 

 Salv. p. Z. 8. 1876. 300). [The Egyptian (ioosc .seems hardly strictly congeneric with the South Ameri- 

 enn species uiwn which this gemis was based, and may roipiiro another generic name.] 



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