BIRDS OF NORTH AND MIDDLE AMERICA. 611 



passing terminally into pale dull olive-yellow; inner webs of two outer- 

 most rectrices with a large terminal or subterminal spot of white; sides 

 of head, including a narrow superciliary stripe (becoming indistinct or 

 obsolete beyond eye), a large crescentic suborbital space, greater part 

 of auricular region, whole malar region, and entire under parts clear 

 lemon yellow, the sides and flanks very indistinctly streaked with olive- 

 greenish (these streaks more distinct on sides of breast) ; a postocular 

 andarictal streak of olive-greenish; max*lla brownish black, with paler 

 tomia; mandible horn, brownish, paler basally; legs and feet horn 

 brownish (in dried skins); length (skins), 115-119 (117); wing, 55-59 

 (56.8); tail, 51; exposed culmen, 10.5-11.5 (11); tarsus, 19-21 (19.8).' 



Ackilt female. — Simiftar to the adult male and not always distinguish- 

 able, but usually (?) slightly duller in color; length, 105-115 (110.5); 

 wing, 53-56 (54.5); tail, 47-4:9 (47.4); exposed culmen, 11-12 (11.2); 

 tarsus, 19-20 (19.5).' 



Young., first plumage. — Above plain light grayish brown, somewhat 

 darker on back; middle and greater wing coverts edged with lighter 

 brownish and indistinctly tipped with dull light buffy; remiges and 

 rectrices dusky, edged with light olive, these edgings on tertials broader 

 and paler; lower parts entirely dull whitish, faintly tinged with yel- 

 low posteriorly, strongly tinged with grayish brown on sides of breast. 

 (Described irom No. 111,258, coll. U. S. Nat. Mus., Swan Island, 

 Caribbean Sea, February 3, 1887; C. H. Townsend.) 



[Some apparently adult specimens, of both sexes, possibly younger 

 birds, are duller in color than those from which the above descriptions 

 of the adult male and ferriale are taken, while several which are other- 

 wise as bright colored have the olive-green of the upper parts, espe- 

 cially on the hindneck and part of the pileum, replaced by clear ash 

 gray, and the yellow of the throat by a much paler tint, almost yel- 

 lowish white. 



Having only one specimen, an adult female, from the island of 

 Grand Cayman (the type localitj^) for comparison with the Swan Island 

 series, I can not be sure that the birds of the two islands are really 

 identical.] 



Islands of Grand Cayman and Swan Island, Caribbean Sea. 



Oendroica mtellina Coky, Auk, iii, Oct., 1886, 497, 501 (Grand Cayman, Caribbean 

 Sea; coll. 0. B. Cory); iv, 1887, 181 (St. Andrews I., Caribbean Sea); v, 

 1888, 157 (Grand Cayman); vi, 1889, 31 (Little Cayman; Cayman Brae); 

 Birds W. I., 1889, 286; Cat. W. I. Birds, 1892, 18, 119, 129, 155 (Grand 

 Cayman) .— Eidgway, Proc. U. S. Nat. Mus., x, 1888, 574 (Grand Cayman) , 

 576 (Swan I., Caribbean Sea; descr. young). 



' Kve specimens, from Swan Island, Caribbean Sea. 



'Four specimens, from Swan Island, Caribbean Sea. A single female from Grand 

 Cayman (the type locality) measures: Length (skin), 112; wing, 52; tail, 45; exposed 

 culmen, 12; tarsus, 20. 



