224 ANATIDE. 
V5. Fuligula collaris. 
Anas collaris, Donov. Brit. Birds, vi. pl. 147°. 
Fuligula collaris, Scl. & Salv. Ibis, 1860, p. 2777; P. Z. S. 1876, p. 400°; Salvad. Cat. Birds Brit. 
Mus. xxvii. p. 870 *. 
Fulix collaris, Lawr. Mem. Bost. Soc. Nat. Hist. ii. p. 815°; Baird, Brewer, & Ridgw. Water- 
Birds N. Amer. ii. p. 25°. 
Aythya cellars, Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 1747; Stone, Pr. Acad. Philad. 1890, 
p- 217°; A. O. U. Check-l. N. Amer. Birds, 2nd ed. p. 53 . 
Fuligula affinis, Scl. (nec Eyton), P. Z. S. 1859, p. 369”. 
Fuligula rufitorques, Scl. P. Z. S. 1862, p. 20”. 
Supra nigra, capite colloque purpureo lavatis, dorso viridi paullulum nitente ; tectricibus alarum et remigibus 
grisescenti-brunneis, primariis intimis fusco terminatis ; secundariis extimis griscis, extus albo terminatis, 
fascia subterminali fusca ; secundariis intimis et scapularibus longioribus nigris, paullulum viridi niten- 
tibus ; tectricibus majoribus nigricantibus ; cauda fuscescenti-nigra ; gutture et preepectore nigris, torque 
collari castaneo; corpore reliquo subtus albo, abdomine et corporis lateribus vix fusco vermiculatis ; 
subcaudalibus nigris; subalaribus cinerascentibus, albo marginatis; axillaribus albis: rostro plumbeo, 
fascia basali et altera latiore subterminali cyanescenti-albis, apice uigro; pedibus pallide schistaceis. 
Long. tota circa 17-0, ale 7°8, caude 3°0, culm. 1:9, tarsi 1-45. (Descr. maris adulti ex Corpus Christi, 
Texas. Mus. nostr.) 
© femine F. marile similis, sed pileo et collo brunnescentioribus, minime rufescentibus; alis ut in mari colo- 
ratis, speculo alari griseo: rostri fasciis angustioribus et minus distinctis ; pedibus schistaceis. Long. tota 
circa 17:0, ale 7°2, caude 2°5, culm. 1°8, tarsi 1-3. (Descr. femine adulte ex Duenas, Mus. nostr.) 
Hab. Nortu America, breeding far north, migrating south in winter + ®.—Mzexico, 
Chihuahua, Boca Grande, Janos River (Dr. Kennerly®), Mazatlan (Grayson ® >), 
Rio de Coahuayana (Xantus°), Lake Patzcuaro (Baker ®), Jalapa (De Oca }°), 
Lake Chapulco, Puebla (ferrari-Perez 7), Oaxaca (Boucard 1); GuateMaa, Coban, 
Lake of Duetas (0. S.?34).—Wesr Inptxs 4. 
The Ring-necked Scaup is distinguished from the two preceding species by the 
colour of the speculum, which is bluish-grey, narrowly tipped with white, instead of 
white, tipped with black; the sides of the body, likewise, are greyish-white, with 
strongly marked blackish vermiculations. ‘The white chin-spot and the rufous collar 
on the neck are further distinguishing characteristics. 
This species breeds throughout the northern parts of North America from about 
lat. 44°. It migrates south in winter, and is then found on inland waters, and more 
sparingly on the coasts. According to Grayson, F. collaris occurs in Western Mexico, 
and he obtained specimens at Mazatlan®. It was found by Dr. Kennerly, during the 
Mexican Boundary Survey, at Boca Grande in Chihuahua, and also on the Janos River, 
where the bird was seen in large flocks in April®. In Guatemala we procured 
specimens on the Coban River in Vera Paz in November, when the species was noticed 
in considerable numbers ? $ ¢. 
_ The nest is made of dry grasses, slightly lined with down. ‘The eggs are dese bed 
as being of a greyish-ivory-white, a buffy tinge sometimes replacing the grey ® 
