•~-^^ 



2 LAMKLLIROSTUAL SWIMMKIIS — ANSKUES. 



edly convex jpostericiily (iis in (lie nnrtlieni I'ornis) ; the lana'lliu lieinj,' fluis completely liidileii. 

 In Qwrqufthda, on tlie other Imiul, tiie teriniiiiil portion of the tuniinni is Htr')ii;,'ly convex, and the 

 jiosterior hall' <'Ut away, as it were, so as to I'lilly ex]iose tlu^ lamella'. 1 hro\!^ii the I'uvms ocenrrinj,' 

 in the southern hemisphere,* this genus leails directly tu J'axiloiutttt, which in turn is intermedialu 

 hetween Ndtion and Diijila. 



The two species of Xittimi o('ciirrini,'in the northern liemisphere are much alike, the males beiii},' 

 very handsome in ]>lninft;,'e ; they may lie distinj,'uislied as follows : — 



Com. Char. Aihilt males : Head and upper half of the neck chestnut-rufous, marked with a 

 larjjc patch of nietuUic yreen on each side the head, liehind the eye ; chin and upper ])art of throat 



JV. crecca. 



dull lilack ; nuchal tuft lilue-ldack ; lower pait of the neck, upper part of the Imck, scapulars, and 

 lateral parts of tlie body lieneath, lieautifully undulated with black and white ; outer scajudars 

 marked with black and white ; Rpec\iluni brijjht metallic green, the lower feathers black, ti]i]ied 

 with white; crissum black centrally, creamy buff laterally. Adult femrdcs ; Wing, only, as in the 

 males ; elsewhere varied with dusky and brownish white, the former prevailing above, the latter 

 beneath ; the abdomen nearly or quite immaculate. 



1. N. carolinensiB. A broad white bar across .side of breast, before the wing ; inner webs of 



outer scapulars vermiculated with dusky and brownisli white, the outer webs marked with 

 a longiluilinal lanceolate spot of black, bordered internally with a white line. Jfah. 

 North America generally. 



2. N. crecca. No white bar on side of breast ; inner web of outer scapulars wholly, and 



outer web jiartly, white ; exposed surface of outer webs almo.st entirely black ; undula- 

 tions of sides, etc., much coarser than in X. carolinensis. Hub. Palu;arctic Region, occa- 

 sional in Eastern North America. 



Nettion carolinensis. 



THE AMEBICAN OBEEN-WINGEO TEAL. 



Anas crecca, var. Forst. Pliilos. Trans. LXII. 1772, 383, 419. 



Alias (liosclms) crccen, var. Sw. & liicn. F. B. A. II. 1831, 443. — NuTT. Man. II. 1834, 400. 



Amscncca, " Linn." Wils. Am. Om. VIII. 1814, 101, pi. 60, fig. 1 (not of LIiNN.). — Aui), Orn. 



niog. III. 1835, 218 ; V. 1839, 61fi, pi. 228. 

 Anas caroUmnsis, G.mel. S. N. I. ii. 1788, .533. — Aun. Synop. 1839, 281 ; B. Am. VI. 1843, 281, 



pi. 392. 



\ 



' Among those may be mentioned, as very close to true Nctlion, but approaching Pacilmietta in the 

 form of the bill and the greater elongation and ncumination of the scapulars, tertials, and rectriccs, Anas 

 flavirostris, VlF.ll.l,., of South America, and " Qnrrqucdula " F.atxmi, SuAnrK, of Kcrguelen Island. 



