from the Orinoco, Venezuela. 439 



wing-coverts are more yellowish, not so much, mixed with 

 brownishj and the black stripes on them thinner and finer. 



Venezuela is quite a new locality for this species, which 

 hitherto was only known from Brazil and Paraguay. 



31. BuTORiDES CYANURUs (Vieill.) . 



Angostura (one) and Rio Apure (two) ad. and vix ad. 



Long. al. 179-185, caud. 65-68, culm. 62-65, tars. 52-54 

 millim. 



Agrees in every respect with birds from Santa Catharina and 

 Rio Grande do Sul, S. Brazil, but perhaps slightly larger. 



Prof. Schlegel notes this species from Caracas (Mus. d. 

 P.-B.). 



32. TiGRisoMA BRAsiLiENSE (Linn.). 

 Rio Apure. Three adults, one young. 



Long. ai. 310-338, caud. 125-136, culm. 95-110, tars. 

 80-103 millim. (the young of the largest size). 



It is, perhaps, rather difficult to distinguish young birds 

 of T. brasiliense and T. salmoni. T. salmoni seems to have 

 the bill always shorter, but there is much variation in this 

 respect. I am rather doubtful about the correct determina- 

 tion of some immature birds from Eastern Ecuador, a locality 

 where both species occur. T. brasiliense has not hitherto been 

 recorded from Venezuela. 



33. Nycticorax gardeni (Gmel.). 



Angostura. An old bird, but lacking the long white 

 nuptial neck-plumes, otherwise agreeing with a specimen 

 from S. Paulo (Mus. H. v. B.), but with the bill somewhat 

 longer and broader at base. 



A species not previously noted from Venezuela. 



34. Tantalus loculator, Linn. 



Angostura. An adult, generally agreeing with a specimen 

 from Rio Grande do Sul, S. Brazil (Mus. H. v. B.),but with 

 bill and wings shorter. 



Long. al. 475, caud. 168, culm. 207, tars. 200 millim. 



A species not previously recorded from Venezuela. 



