7 A A. Allen on a New Species of Icterus. [October 



one immature male, one adult female, three immature females, 

 and another immature specimen of which the sex could not he 

 determined. As shown by Mr. Northrop's notes given below, 

 he found the sjjecies not uncommon. It is known to the residents 

 of the island as the 'Cocoanut Bird,' and is said to be resident 

 throughout the year. 



Icterus northropi, sp. nov. 



Adult Male. — Whole anterior half of the body, as far as the middle of 

 the breast below, and including the interscapulium above, together with 

 the wings (except the lesser and median coverts), and tail, deep black; 

 rest of the body, the thighs, lesser and median wing-coverts, edge 

 of the wing, lower wing-coverts and axillars, rich lemon-yellow; greater 

 wing-coverts and primaries very narrowly edged, and the outer tail-feathers 

 verv narrowly tipped with white. Bill and feet black; lower mandible 

 with the basal third bluish. In one specimen the longest two lower tail- 

 coverts are mixed yellow and black; in the other specimens they are all 

 wholly yellow. 



Adult female. — Similar to the male, except slightly smaller, and with 

 the black a little less lustrous. 



Young. — Immature birds of probably the second year are olivaceous 

 gray above, brighter and more yellowish on the front of the head; lesser 

 wing-coverts, lower back, rump, upper tail-coverts, and whole lower sur- 

 face greenish yellow, brightest on the rump and middle of the abdomen; 

 median wing-coverts pale sulphur yellow ; greater coverts brown, edged 

 with whitish; chin, throat, and cheeks much mixed with black, which 

 here prevails over the yellow; there are scattered black feathers over the 

 breast and head, and in one specimen blackish patches on the outer edge 

 of the scapulars and sides of the breast; wings and tail brown, the 

 remiges edged with whitish, and the rectrices with olive. 



Other specimens in a less advanced stage are similar, except that there 

 are fewer black feathers intermixed with the yellow, the chin and the 

 front edge of the cheeks alone being decidedly blackish, and the back is 

 less olivaceous. 



Measurements. — Length (from skins), 205 mm. (195-215 mm.); wing, 

 94 mm. (90-99 mm.) ; tail, 94 mm. (90-97 mm.) ; culmen, 22 mm. (21-22 

 mm.) ; tarsus, 25 mm. (24-27 mm.). 



Types. No. 49,911, Am. Mus. Nat. Hist., $ ad., Andros Island, Baha- 

 mas, June, 1890; Mr. and Mrs. John I. Northrup. No. 49,912, Am. Mus. 

 Nat. Hist., °. ad., Andros Island, Bahamas, April 16, 1890. 



The extent and distribution of the black and yellow in the 

 adults are the same as in P. %vagleri except that the tail-coverts 

 are yellow instead of black ; the tint of the yellow is nearly as in 



