ANATIDE — THE SWAXS — OLOR. 



423 



1. CygnuB (Linn.), 17^8. 



6'. The yellow color at the bnse of tliu l)ill not uxlendint? to the nostriln. 



c* Siimller : Total Icn^'tli alMiiit 1, 150 mm; midillc toe with daw about 125 mm; the 

 yellow spot ut the liasc ot' ilic liijl making at least one third of the svirface of the bill 

 and lores. 



2. Bewiokil (Vauk.), 1830, 



c*. Larger: Total k'nj,'th about l,400mni; middle too with idaw about 140mm; the 

 yellow spot at the base of the bill making,', at most, one fifteenth of the surface of the 

 bill and lores. 



3. ColumbiauuB (Oud.), 1810. 



n^. The distance from the anterior anj,de of the eye to tin; hind border of the nostrils equal to the 

 distance from the latter to the tip of the bill. 



4. Buccinator (Rich.), 18C1." 



The North Amerii'an species of (Jlor may be readily distiiij;nislied by the foUowini,' characters : — 



1. O. oolumbiauua. Tail-featheis usually 20 ; bill not Ioniser than tiie liea(',the anterior end 



of the nostrils considerably anterinr to the miiUlle of the ma.xilla ; iiakei' loral skin usually 

 with a yellow obion],' spot. 



2. O. buccinator. Tail-f' -ithers usually 24 ; bill longer than the bead, the anterior end of 



the nostrils roacliiii^' to about the middle (jf the ma.vilhi ; nake<l loral skin entirely black. 

 Size considerably larger. 

 Through a mi.sconception of statements made on )). 4C5 of the " Fauna Horeali-.lmericana," Vol. 

 II,, the author of a "Nomenclature of North American Birds" (I'uU. U. .*■>. Nat. Mus. No. 21) 

 iiK luded Bewick'.s Swan in the Nortli American fauna. In this, however, it .leems that he was 

 iu error, as pointed out on pp. 210 and 211 of Dr. Stejneger's Monogra))h, before referretl to. In 

 view, however, of the possibility that this species may yet be found within our limits, we quote 

 liolow, from Dr. Stejneger's paper, its chief synonymy and principal characters : — 



" Olor BewiokU, Yarr. (Bewick's Swan)." 



" Diagn. The distance from the anterior angle of the eye to the hind border of the nostrils is 

 nuich longer than the distance from the latter to the tip of the bill ; the yellow color at the base 

 of the bill does not extend to the nostrils, making at least one third of the surface of the bill and 

 lores. Smaller : Total length about 1150 nnn ; middle toe with claw about 125 mm." 



Syii, — 1830, — Ci/i/HUs Bewiclii, Yaureli,, Trans. Linn. Soc. XVI. j). 453 (ncc Ririi, 1831 qute 0. 



columhianus, t)l!l>). 

 1838, — Ci/gnus islamlicus, Nau.m,, Wieom, Archiv IV, 1838, p. 364 (nee BiiEUM, 1830, quae 



Olor cygiuis, Linn.), 

 1838, — Cijgnus Bcnckkii, KvToy, Monogr. Anat, PI. 18 (err. ti//>.). 

 1840. — Ciigiiiis minor, Keys. & I$i.as, Wirbelth. Europ. p. LXXXII. 

 1842. — Cifgtuis mela7wrhiiiiis, Nau.m. Viig. Deutsclil. XI. p. 4S>7. 

 1851. — Cijgnus mu.sicus, Kj.kiiboll. Orn. Uan. PI. XLIV. (ncc Bechst. quse 0. eijgnus, 



Linn.), 

 1854, — Vygnus ameriiMHUs, Haktl, Naumannia, 1864, p. 327 (nee Suarpl, quoe columbianus, 



Okd), 

 1856, — ' Ci/gmts Altumi, Homeyer,' Bp. Cat, Parzud,, p, 16. 

 1866. — ' Ctjgnits Allumii, Uadekek,' Schi.eoel, Mus. P, B. VI, Anseres, p. 82. 

 1880, — Cygnua Bewicki, Dkesser, Birds of Eur, pt, Ixxvii.-kxix," 



Olor cygnus. 



THE HOOPEB SWAN. 



Anas cygnus, Linn. S. N. ed, 10, I, 1758, 122 ; cd, 12. 1. 1766, 194, 



Olor cygnus, " Bonap," Ridow, Proc, U, S, Nut, ilus. Vol. 3, 1880, 202, 222 ; Xom. N. Am. B. 

 1881, no. 586, — Stejn, Proc. U. S, Nat. Mus. Vol. 5, 1882, 198. 



