340 BULLETIN" 50, UNITED STATES NATIONAL MUSEUM. 



from about one-third to one-half its length, the fourteen rectrices 

 becoming narrower distally, the middle ones, at least, obtusely 

 pointed. Tarsus equal to or slightly longer than middle toe without 

 claw (the proportion being 1 to 1 to 88 to 1), the upper portion (in- 

 cluding tibio-larsal joint) entirely bare, the acrotarsium covered by 

 a single row of broad transverse scuteUa, the planta tarsi with small 

 hexagonal scales ; lateral toes decidedly shorter than middle toe, the 

 cla.w of the inner reaching about to base of middle claw, the outer toe 

 a little shorter; hallux (without claw) about as long as basal phalanx 

 and half of second phalanx of middle toe. 



Plumage and coloration. — Plumage of head, neck, and under parts 

 soft and blended; bare orbital space moderate, broadest beneath eyes. 

 Coloration plain, the proximal secondaries (sometimes adjacent 

 wing-coverts and scapulars also) spotted with black; rectrices (except 

 middle pair) with a black band across post-median portion, the 

 apical portion paler gray than basal portion, sometimes white; a 

 small black subauricular spot; adult males with head, neck, and ante- 

 rior under parts more or less vinaceous and sides of neck glossed with 

 metallic purple. 



Range. — Temperate and tropical North America, including West 

 Indies. (Three, possibly four, species.) 



KEY TO THE SPECIES AND SUBSPECIES OF ZENAIDURA. 



a. Secondaries not tipped with white. 



h. Tarsus less than 21 mm. ; under parts not darker nor more reddish than vinaceous- 

 fawn color, fading into pinkish buff to buffy white on under tail-coverts; 

 apical portion of lateral rectrices white. {Zenaidura macroura.) 

 c. Smaller (^ving averaging less than 141 in males, less than 133 in females; tail 

 averaging less than 124 in males, less than 112 in females); coloration deeper 

 (chest vinaceous-fawn color in adult males), the upper parts browner. 

 d. Bill and feet smaller (culmen averaging 13.3 in male, 12.7 in female; tarsus 

 averaging 19.9 in male, 19.6 in female; middle toe averaging 19.9 in male, 

 19.2 in female) ; occiput and hindneck less extensively bluish gray in male. 

 (Cuba; Isle of Pines; Haiti; Jamaica.) 



Zenaidura macroura macroura (p. 341.) 



dd. Bill and feet larger (culmen averaging 16.4 in male, 15.4 in female; tarsus 



averaging 22.6 in male, 21.4 in female; middle toe averaging 22.6 in male, 



22.1 in female); occiput and hindneck more extensively bluish gray in 



male. (Clarion Island, Western Mexico.) 



Zenaidura macroura clarionensis (p. 344.) 

 cc. Larger (wing averaging more than 146 in males, more than 139 in females; 

 tail averaging more than 138 in males, more than 120 in females); coloration 

 paler (chest light vinaceous-fawn color in adult males), the upper parts less 

 brownish. 

 d. Color of forehead and superciliary region (in adult piale) not conspicuously 

 darker than that of chest. 

 e. Coloration averaging slightly darker, with upper parts browner; averaging 

 slightly smaller (wing averaging 147.2 in male, 139.6 in female) . (Humid 

 region of eastern North America.) 



Zenaidura macroura carolinensis (p. 345). 



