106 [Oct. 



6. Myiothera nudiceps, nobis. 



Form. Upper part of head bald or with a few bristle like feathers, wings 

 with the fifth quill slightly longest, tail short, legs long. General fornn much 

 like M. longipes, (Vieill.) 



Dimensions. Total length of skin from tip of bill to end of tail about 6i 

 inches, wing 3 and l-8th, tail 2} inches. 



Colors. 5 . Naked space upon the head blue. Entire plumage black. Wing 

 coverts delicately edged with white, which is also the color of the basal portion 

 of the feathers of the back, (apparent only upon raising them.) Irides white. 



Hah. Panama; discovered by Mr. John G. Bell. 



Ohs. This species may readily be distinguished from others of its genus by 

 its bald head, the naked skin of which in the living bird is, as Mr. Bell informs 

 me, " Mazarine blue." His note is as follows : " These birds kept on the ground, 

 running and scratching among the leaves, like the others of the same family 

 which I send, and somewhat like our small Thrushes, (M. mustelina and solitaria.) 

 They were constantly calling and singing a short, loud, and very curious song, 

 which varied in several of its notes at different times, and is entirely different 

 from that of any of our birds. This species appeared to me to be rather a stupid 

 bird, and was easily approached ; it has a habit of puffing up the feathers on its 

 back; the head in recently killed specimens is beautiful Mazarine blue. It was 

 represented to me as a very rare bird by several residents at Panama." 



7. Leuconerpes albolarvatus, nobis. 



Form. Robust, wings with the fourth primary longest, secondaries broad, 

 abruptly terminated, sub-emarginate ; tail rather long, with the feathers soft at 

 the ends. Legs and feet rather slender. 



Dimensions. Total length of skin from tip of bill to end of tail about 9 inches, 

 wing 5, tail Zi inches. 



Colors. 5 . Wide mask including greater'part of the head and extending 

 upon the breast, white, which is also the color of a basal portion of both webs of 

 the primaries, and upon the outer webs in a few feathers extends for two thirds 

 of their length. Narrow occipital band scarlet. All other parts, including body 

 above and below, wings and tail, black. 



o . Similar, but rather smaller, and without the occipital band of scarlet. 



Hab. Near Sutter's mill, California, discovered by Mr. John G. Bell. 



Obs. Mr. Bell's note accompanying this very interesting species is as follows: 

 " I shot this bird at the Oregon canon, near Georgetown, about 12 miles from 

 Sutter's mill ; it seemed to prefer the tall pine trees, and generally kept very 

 high. In habits it appeared very much like the P. villosus. Its note is clear 

 and sharp, and it is very active and lively in its movements." Has no near 

 relative yet discovered in North America, and resembles in general characters 

 only the L. dominicanus, (Vieill.) Spix. Av. Bras. pi. 50. 



ELECTION. 



Dr. John Evans, of New Harmony, Indiana, was elected a Corres- 

 pondent of the Academy. 



