212 ANATIDA. 
typical Ducks in their small size, and in the shape of the bill, which is throughout of 
the same width, the tip being subtruncate. The black and green speculum consists 
of two longitudinal bands, and is present in both sexes. 
Some sixteen species are known, of which one (WV. carolinense) is a resident in, and 
another (NV. crecca of Europe) an occasional visitor to, North America. The former 
alone occurs in Central America, the rest being peculiar to the Old World or to 
South America. 
/1. Nettium carolinense. 
Anas carolinensis, Gm. Syst. Nat. i. 2, p. 533°; Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 173°; 
Herrera, La Nat. (2) i. pp. 187°, 829*; A.O. U. Check-l. N. Amer. Birds, 2nd ed. p. 50°. 
Querquedula carolinensis, Scl. P. Z. 8. 1857, p. 215°; 1860, p. 2547; Moore, P. Z. 8. 1859, p. 65 oa 
Scl. P. Z. S. 1859, p. 369°; Scl. & Salv. P. Z. S. 1876, p. 385”. 
Nettion carolinensis, Dugés, La Nat. i. p. 143"; Lawr. Mem. Bost. Soc. N. H. ii. p. 814; Baird, 
Brewer, & Ridgw. Water-Birds N. Amer. ii. p. 2°; Salvad. Cat. Birds Brit. Mus. xxvii. 
p. 250”. 
Nettium carolinense, Sharpe, Hand-list Birds, i. p. 219”. 
Supra nigricans, anguste albo transvermiculatum ; uropygio saturate brunneo; capite et collo superiore 
castaneis; plaga nitenti-viridi utrinque ab oculo postico ad nucham producta, fascia suboculari alba 
indistincta; collo postico nigro; fascia crescenti alba ad latera pectoris posita, per latera colli extensa ; 
mento nigricante; collo imo nigro; prapectore pallide rufo lavato, nigro guttato ; pectore et abdomine 
albis, corporis lateribus et hypochondriis nigris minute albo transfasciolatis ; tectricibus alarum cinerascenti- 
prunneis, majoribus cineraceis, late rufo terminatis ; primariorum tectricibus et primariis cinerascenti- 
brunneis, secundariis extimis nigris, medianis lete metallice viridibus, speculum formantibus et albo 
terminatis; secundariis intimis griseis, extus nigro marginatis; subalaribus albis, fusco variegatis ; 
axillaribus albis; subcaudalibus nigris, medianis longioribus albo terminatis, lateralibus albis vel fulvis, 
ad basin nigris; rectricibus cinerascenti-brunneis, marginibus pallidioribus: rostro nigricante ; pedibus 
brunnescenti-griseis ; iride corylina. Long. tota circa 14°5, ale 7:3, caude 3:0, culm. 1°6, tarsi 1:1. 
(Deser. maris adulti ex Presidio, Mus, nostr.) 
Q. Supra brunnescenti-nigrum, plumis ad basin pallide rufescentibus, et eodem colore fasciatis; capite albicante, 
crebre nigro maculato, pileo saturatiore; linea postoculari nigra; subtus albescens, plumis medialiter 
fusco marmoratis, pectore rufescentiore ; alis ut in mari coloratis. (Descr. feminz adult ex Presidio. 
Mus. nostr.) 
Juv. femine adulte similis, sed tectricibus alarum pallide fulvo marginatis, abdominis et gastrai reliqui 
plumis medialiter fusco notatis. 
Hab. Nortu America, breeding chiefly north of the United States °.—Mexico, Hermo- 
sillo, Sonora, Laguna del Rosario? (errari-Perez), Chihuahua (Kennerly 1%), 
Mazatlan (Grayson 12), Presidio (Forrer \*), Zacatecas (Hichardson “*), Guanajuato, 
Guadalajara (Dugés #4), Valley of Mexico (Herrera**), Vera Cruz (Sallé”), Jalapa 
(De Oca®), Orizaba (Botteri®); Honpuras (Dyson *), Aloor River (Leyland §).— 
West Inpizs !4,—Accidental in Europe *. 
N. carolinense is widely distributed throughout North America, breeding in the 
Arctic and Subarctic Regions, as far south as Montana, Wisconsin, Iowa, and Oregon, 
in the United States. In winter it migrates to Central America, where specimens 
