204 ANATXD^. 



8. Anas diazi. 



Anas diazi, Hidgw. Auk, 1888, p. 332 (Puebk, Mexicn) ; F.-Perez, 

 Pi: U.S. Nat. Mus. 1886, p. 171 ; Riclijiv. ibid. ; id. Man. N. Am. 

 B. p. 32 (1887) ; id. Auk, 1889, p. 264. 



Male. Most like A. fulviguJa, llidgw., but last row of -wing- 

 coverts with a distinct subterminal band of white, and secondaries 

 -with a broad terminal bar of the same ; general colour much less 

 fulvous; cheeks streaked with dusky, and lower basal angle of 

 upper mandible without black spot. Wing 10 inches, tail 4, culmen 

 2"05, tarsus 1*60. (Eidrjwai/.) 



Female. Similar, but somewhat smaller. 



Hab. Mexico. 

 a. 2 ad. sk. Puebla, Maj' (Feirari-Perez). Salvin-Godman Coll. 



9. Anas aberti. 



.P Anas obsciira. Later, (nee Gtn.) Mem. Boxf. Soc JV. II. ii. p. 314 



CTepie, W. Mexico) (1874). 

 Anas aberti, Ridgw. Pi: U.S. Nat. Mus. i. p. 2oO (Mazatlan, 



Mexico) (1878) ; B., B., ^ P. Water-Birds N. Am. i. p. 490 



ri884) ; Ridgw. Pi: U.S. Nat. Mm. ix. p. 173 (1886); id. Man. 



N. Am. B. p. 92 (1887). 



Adult female. " Size of Querquedula discors and ci/anojitera^hut in 

 coloration closelj' resembling A. fitlvir/nla. Prevailing colour ochra- 

 ceous buff, but this everywhere relieved by brownish-black spots 

 or streaks. Head, neck, and lower parts streaked, the streaks finest 

 on the neck and sides of the head, broadest on the jugulum and 

 crissum, which is somewhat tinged with rusty, and assuming the 

 form of oblong spots on the abdomen, thighs, and anal region ; 

 throat immaculate. Back, scapulars, and rump with the blackish 

 predominating ; the feathers bordered with ochreous ; those 

 of the back and the scapulars with irregular indentations and 

 occasional bars of the same ; lesser wing-coverts brownish-slate, 

 bordered with dull earthy -brown ; middle coverts with their ex- 

 posed portion velvety-black, forming a distinct bar. Secondaries 

 widely tipped with pure white (forming a conspicuous band about 

 •35 of an inch wide), this preceded bj' a velvety-black bar of about 

 equal width, the basal half or more (of the exposed portion) con- 

 sisting of a metallic speculum of dark grass-green, varying to blue 

 and violet in certain lights. Tertials ojJaque velvety-black exteriorly, 

 the inner webs brownish-slate ; primary-coverts and primaries 

 brownish-slate, the latter edged with lighter. Tail brownish 

 grey, the feathers edged and coarsely spotted with light buff. 

 Bill yellowish brown, darker on the culmen, the unguis dusky; 

 feet light yellowish (probably orange in life). Wing 8'50 inches, 

 tail 3-25, culmen 1-G5, greatest width of the bill -60, depth of 

 maxilla through the base -oO, tarsus 1-30, middle toe 1"70. 



" Remarlcs. [This Duck] in its small size and, to a certain extent, 

 the narrow bill, is like the species of Querquedula, but its coloration 

 calls instantly to mind the Anas fulviyula from Florida .... 



