In our memoir on the American Rallidae, recently published in the Zoological Society's 

 " Proceedings,"* we have given a complete account of the species of Rallus which inhabit the 

 New WorkL 



The two birds now figured belong to the second section of our arrangement, and along 

 with R. virginianus form a group of small species which have the back variegated with brown, 

 and are, in fact, the American representatives of the well-known AVater-rail [Rallua aqiiaticusj 

 of Europe. 



These three species may be distinguished as follows : — 



1. JZ. virginianus. 



Linn. S/st. Nat. p. 2G3 : Scl. et Salvr. P.Z.S. 1868, p. 445. 

 Diagn. Subtus rufescena. 

 Hab. Whole of North America (Baird) : Mexico: Guatemala (Salvin). 



2. R. aniarcticus, tab. Ixxxii. 



Diagn. Subtus plunibeus: Intcribus distincte albo vittatis. 

 Hab. Chili {Philippi) : Patagonia (King). 



3. a. semiplumbeus, tab. Ixxxiii. 



Diagn. Subtiis fere omnino plumbeua. 

 Sab. Interior of New Granada. 



» P.Z.S. 1868, p. 443. 



AiPEiL, 1869. " _, . I 



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