INSESSORES. 



221 



Swains. Zool. 111. 11, Plate LXVII; Reichenbach, Vollst. Naturg. 

 Birds, Plate CCCCXX, fig. 3140. 



Form. — About the size of T. cliloris. Bill long, wide ; ridge of upper 

 mandible flattened, obscure; that of under mandible ascending 

 from the middle of its length ; wing moderate ; third and fourth 

 quills longest and very nearly equal ; tail moderate ; tarsus short ; 

 toes rather long. 



Dimensions. — Total length (of skin), about eight and three-fourths 

 inches ; wing, three and three-fourths to four inches ; tail, three and 

 one-fourth inches. 



Colors. — Adult ? Head, neck, and entire under parts fawn, or 

 cinnamon-color, lighter on the throat; a narrow band from behind and 

 below the eye to the occiput, dark blue. Back, rump, wings, and tail 

 above, blue, tinged with green on the back ; inner webs of quills and 

 inferior surface of tail brownish-black ; bill dark ; a large space at the 

 base of the under mandible white ; legs light-colored. Under wing- 

 coverts dark fawn-color. Younger? Head above and occipital band 

 as in preceding. Back, wing-coverts, and rump, with the green pre- 

 dominating ; entire under parts white, with an obscure band of fawn- 

 color across the breast ; under wing-coverts very pale butF ; quills and 

 tail as in preceding. 



Hab. — Ladrones or Marianna Islands. Specimen in Mus. Acad. 

 Philadelphia. 



This is a species of very peculiar appearance, but presenting con- 

 siderable variations in color. In four specimens now before us, that 

 described first above is apparently the most mature bird, and is pre- 

 cisely as figured and described by Mr. Swainson, in Zoological Illustra- 

 tions. Two others are of the same general colors, but have the fawn 

 or cinnamon-color paler, while a fourth, undoubtedly the same species, 

 has the entire under parts nearly pure white, with a badly defined 

 band of buif or pale fawn on the breast. The last presents the ap- 

 pearance of being the youngest bird, though possibly may be in a sea- 

 sonal plumage only different from that of the others. 



Specimens in the Rivoli collection now in Mus. Acad. Philadelphia, 



5G 



