DR. L. F. DE BEAUFORT, BIRDS FROM DUTCH NEW GUINEA. 4O9 



The length of the wing in the three birds is 50, 52 and 52 mm. and that of the tail 

 36, 37 and 38 mm. In thèse respects they agrée with S. pusilla, which form however has 

 been united with 5. olivacea by the original authors (Nov. Zool. X p. 480). The same orni- 

 thologists mention a bird from Mt. Maori (= Cyclop Mts), which is much lighter underneath 

 than 5. olivacea, but as the birds mentioned hère are probably discoloured by the alcohol 

 I cannot give any certain information about this point. 



Sericornis beccarii Salv. 



Cat. Birds Brit. Mus. VII p. 305. 



Cyclop Mts, 1000 meters, April i4th, n°. 123 (in spirits). 

 Rothschild and Hartert mention a spécimen from Humboldt Bay in which the olive 

 tint was more developed than in those from Aru. The bird in our collection is probably 

 discoloured, as it is' even less olive-coloured than birds from Aru in the Leyden Muséum. 



Cisticola exilis Vig. & Horsf. 



Cat. Birds Brit. Mus. VII p. 269. 



Humboldt Bay, April 28th, and 29m, n°. 200, 209 (in spirits). 



Near Lake Sentani, April 5th, June 26m, and 27th, n°. 385, 386, 395 (ail in spirits). 



MUSCICAPIDAE. 

 . Monarcha inornatus Garn. 

 Orn. Pap. II p. 14. 

 çf, Mios Korwar, July iSth, n°. 650. 



Mornarcha chalybeocephalus Garn. 



Piezorhynchus alecto, Cat. Birds Brit. Mus. IV p. 415. 

 ((f) Near Lake Sentani, June 2Ôth, 11°. 390 (in spirits). 



Monarcha guttulus Garn. 



Cat. Birds Brit. Mus. IV p. 422. 

 Orn. Pap. II p. 22. 



rf, Humboldt Bay, April 24th, n°. 179. 

 juv, Môso, May 9th, n°. 231 (in spirits). 



I am not quite sure that the détermination of the last spécimen is correct. The breast 

 is not simply washed with rufous but totally of that colour. 



Monarcha rubiensis A. B. Meyer. 

 Cat. Birds Brit. Mus. IV p. 417. 

 çf, Wendèsi, July 3oth, n°. 669. 



