63 [Vol. sii. 



The dimensions are less, the bill is much smaller and weaker, 

 the primaries are narrower than in the type of CE. magenta:. 

 Wing 277 mm. (about 308 in CE. magenta), tail 115 (140 in 

 CE. mag eat at) , culmen from forehead in a straight line 26 

 (43 in CE. magenta?), depth of bill at base 13 (15 in CE. ma- 

 genta;) , tarsus 32^- (38 in CE. magenta;), middle toe with claw 

 48 (56 in (E. magenta;), extent 990, length in the flesh 

 355 mm. Bill entirely blackish ; tarsus and basal half of 

 toes flesh-colour ; tarsus dusky at base; distal half of toes 

 and outside of outer toe blackish. 



One adult female was caught on January 2nd, 1901, at 

 sea, in the Pacific Ocean, in 3° S., 118° 15' W., not far from 

 the Galapagos Islands, by Mr. R. H. Beck. (Type, No. 143, 

 R. H. Beck coll. : in Mus. Tring.) 



The species is named after Mr. Ch. K. Worthen, of 

 Warsaw, 111., U.S.A., who arranged and managed Mr. Beck's 

 recent trip to the Galapagos Islands. For references to 

 CE. magenta;, see ' Ibis,' 1869, pp. 61, 66 ; Viaggio Magenta, 

 pp. 843, 884 j Rowley's Orn. Misc. i. p. 251, pi. 30; Cat. B. 

 xxv. p. 407. 



Mr. E. Hartert read the following description of a new 

 species of the family Tyrannidte, based upon a specimen in 

 the Vienna Museum : — 



Platyrhynchus nattereri, Hart. & Hellm., n. sp. 



Similar to P. griseiceps, Salvin (Guiana, Orinoco), but 

 differs in having the crown olivaceous grey, almost of the 

 same colour as the back, whereas in the allied species the 

 dark slaty crown forms a very distinct cap, being sharply 

 defined against the rufous-brownish colour of the rest of the 

 upperside. Cheeks and ear-coverts olivaceous grey like the 

 crown, instead of dark slaty grey ; the throat more strongly 

 tinged with sulphur-yellow, instead of almost white or whitish 

 with a slight yellow tinge. The wings and tail are not so 

 dark as in P. griseiceps. The dimensions, especially of the 

 tail, seem to be a little less. Wing 59, tail 29 mm. 



Hab. Rio Madeira, Brazil. Type, No. 17680, Mus. 



