186 



THE A M ERIC A N NA T URA LIST \Yor.. XLI 



Remarks: Aramidcs alhiveniris mexicamis is the northern 

 representative of this group of the genus, occupying the southern 

 tier of states of the Republic of ^lexico and southeastward passing 

 gradually into true J. alhiroitris of ^'ucatan and British Honduras. 

 Though well chaiactcrivuMl sul»])e('ifically it is in general much 

 like true A. alhirvuiris. It can, however, always be told from that 

 form by the characters pointed out al)ove. 



Aramidp:s AiJin i.M Kis tumbkicollis (Zeledon) 



Aramides plumbeicollis Zeledon Anales. Mus. Nac. Costa Rica, 

 1, p. 131, 1887. Biol. Cent. Am. Aves, Vol. 3, p. 320, 1897-1904. 



Type Locality : Jimenez, Costa Rica. Type now no. 1 1 3603, 

 U. S. National Museum, examined. 



Geographic Distribution: Costa Rica, specimens exam- 

 ined from Jimenez, Carrillo, and Cariblanco de Sarapiqui, north 

 at least to Segovia River, Honduras. 



Characters: Similar to A. alhiveniris mexicanus, but slightly 

 smaller; bill actually shorter, though relatively of about the same 

 length; differing in color principally in having a comj^lete mantle 

 across upper back of olivaceons-tawny — the back thus bicolor, 

 olivaceous — tawny anteriorly, greenish olive posteriorly; breast 

 rather darker than in the other two snbsjjecirs more nearly as in 

 A. cajanca; crescentic marking made by paler feathers around 

 black belly patch, when present, narrow and buff in color (in two 

 skins, one from Carrillo and one from Cariblanco de Sarapiqui 

 this marking shows ver\' distinctly; in the type and one other 

 skin from type locality it is l)arely indicated). 



$ ad. Costa Ku 



' Coll. of E. A. 



