230 Henshaw, The Elcpaio of Ha-vaii. \j^ 



his name, sanchaichensis, for the white-faced form. Latham's speci- 

 men ahnost certainly came from the region about Kealekekua Bay, 

 if it came from the island of Hawaii at all, as there is a reasonable 

 degree of probability that it did. 



Of the applicability of the name ridgivayi to the chestnut-faced 

 form there is, of course, not the slightest doubt, although at the 

 time he described the bird Dr. Stejneger appears to have been 

 under the impression that this was the only form upon the island 

 of Hawaii. For this error he is excusable enough, since the author 

 lived more than five years on Hawaii before he saw a specimen of 

 the other form. Indeed it would be possible for a collector to 

 range the forests included in the rainy side of Hawaii a lifetime 

 without making the acquaintance of the white-faced form. 



Under the name of samhuichensis Mr. Rothschild has described 

 both forms, he appearing to consider the chestnut-faced form an 

 intermediate phase, of which the white-faced form is the final 

 plumage. His figures of sanchvichcnsis (opp. p. 71) afford an 

 excellent idea of that form ; while his figure of sandivicheiisis ' Fere 

 adult' (opp. p. 75) is a fair representation of ridgwayi^ though 

 about the head inclining towards the intermediate stage. 



As the two birds have been minutely described more than 

 once, though never as related but distinct forms, the descriptions 

 below are purposely made brief, though sufficient for their dis- 

 crimination. 



Chasiempis sandwichensis {Gjh.). White-faced Elepaio. 



Adult male. — Above olive brown, with white streakings on hind neck 

 and middle back ; forehead, lores, superciliary stripe and rump pure white ; 

 cheeks more or less blackish ; wings and tail dark brown ; wing-coverts 

 black tipped with white, forming a bar across the greater coverts ; under 

 parts as in next form ; less chestnut along sides of body and across breast 

 in interrupted patches ; all but middle pair of tail feathers tipped with 

 white, the outer ones more broadly; legs and feet blue ; upper mandible 

 black with a bluish cast, cutting edge blue ; lower mandible blue. 



Adult female. — Similar to male but generally Avith less white about the 

 head, and with Avhiter throat. 



Juvenile. — Similar to the like state of ridgrvayi but lighter throughout, 

 and with the frontal and superciliary lines plainly indicated. 



