with Notes on other rare or little known Species. 273 



According to Bonaparte (Compt. Kend. as above) this species 

 should be called I. nigrogularis, Hahn, V. t. 1. 



Mr. Cassin doubted this being the bird described by Hahn, as 

 he places his name as a synonym of I. xanlhornus with a ? 

 The length (7 in. 4 lines) given by Hahn agrees best with I. 

 xanthornus. The other measures fully 8A- inches, and is larger 

 in all its other proportions. Hahn says in his description: "The 

 upper and lower part of the back, &c, brilliantly yellow." It 

 then would seem the middle of the back was not so. In this it 

 also agrees with I. xanthornus, which has that part tinged with 

 green ; besides, he states it to be Oriolus xanthornus, Gm. From 

 his plate but little can be judged. It is, to be sure, of an uni- 

 form yellow on the back, but that may be the fault of the color- 

 ist. The description and dimensions, I think, are all that need, 

 be considered. 



After a due consideration of all the facts. I think Hahn's name 

 should not be adopted for the larger bird, but as Bonaparte in 

 Comptes Rendus points out very clearly the differences between 

 the two species, in my opinion its proper designation is 

 Icterus nigrogularis, Bonap. 



The name of Mexicanus, aside from being inappropriate, seems 

 to have no special claim for its adoption. 



Hahn's figure and description were taken from a specimen in 

 the Munich Academy of Science, an inspection of which would 

 surely determine whether it is the larger or smaller species. 



2. Todirostrum pliiinbeum. (Gm.) S. N. 1, p. 444. 



The plumage above is grayish plumbeous, the lores, front, and crown, 

 as far as on a line with the back part of the eye, black; tail black; the 

 outer web of the lateral feather with its tip and also that of the next 

 white ; smaller wing coverts colored like the back, the middle and 

 larger coverts black, edged with white; quills brownish black, the 

 secondaries narrowly and the tertiaries more widely bordered with 

 white ; entire under plumage creamy white ; under wing coverts and 

 inner edges of quills white ; bill black, the under mandible whitish 

 horn-color below ; tarsi and toes brownish black. 



