Descriptions of New Species of American Birds. 475 



on the breast, sides and under tail coverts, middle of abdomen 

 white ; the upper mandible is hazel brown above, the under man- 

 dible and the cutting edges of the upper, dusky yellowish white ; 

 " iris brown ; " legs dull orange yellow. 



Length (fresh) 5|- in. ; wing 2f ; tail 2 1- ; tarsi |. 



Habitat. — Western Mexico, Plains of Colima. 



Collected by John Xantus, June, 1803. 



Specimen in Mus. Smith. Inst. Type, No. 31,825. 



Remarks. — This is a Northern form of C. manimbe and C. 

 peruanus, in colors it most resembles the former; in C. peru- 

 anus the coloring is darker and clearer than in either of them, 

 the yellow on the edge of the wing and of the spot in front of 

 the eye, being particularly bright ; the new species is much 

 the largest, both the wing and tail being fully half an inch 

 longer, it is also without the yellow spot before the eye, exist- 

 ing in the other two. 



13. Hadrostoimis albiventris. 



Male. Front and lores grayish brown, rest of crown and hind 

 neck black, forming a distinct cap, remainder of upper plumage of 

 a rather light bluish cinereous ; sides of the neck and a not very 

 distinct cervical band ashy gray ; tail bluish cinereous, a little 

 darker than the back, with very narrow paler edges to the 

 feathers ; quills blackish brown, with grayish margins ; under wing 

 coverts white, axillars with a pale ochreous tinge ; under plumage 

 grayish white, nearly pure on the chin, abdomen and under tail 

 coverts, ashy on the breast and sides, with a rose-colored spot on 

 the throat ; bill plumbeous black, whitish at the end ; legs dark 

 plumbeous. 



Length (fresh) 6 1- in. ; wing 3| ; tail 2| ; tarsi jf . 



The female has the crown marked as in the male, but it is 

 lighter, being of a dull ashy black ; back and smaller wing coverts 

 olive brown, with a rufous tinge ; a distinct nuchal collar of pale 



