A COLLECTION OF BIRDS FROM N. E. SUMATRA. 87 



$ , Tandjong Morawa, Serdang, N. E. Sumatra, 3rd 



March 1917 [No. 109]. 

 Wing, S, 128, 123, 128, 127; 2, 128, 128 mm. 



47. Halcyon concreta(Temm.). 



Hartert, p. 204. 

 S 2 Tandjong Morawa, Serdang, N. E. Sumatra, 3rd 



March 1917 [Nos. 107-8]. 

 2 Deli Toewa, Deli, N. E. Sumatra, 5th April 1917 



[No. 204]. 

 2 Toentoengan, Deli, N. E. Sumatra, 7th February 1918 



[No. 976]. 

 Wing, *, 104; 2, 105, 109, 108. 



As a rule a bird of heavy jungle and not found in open 

 country like H. pileata. 



48. Halcyon ch!oris(Bodd.). 



Eobinson and Kloss, p. 128 ; Hartert, p. 203. 



5 5,2$, Laboean Deli, Deli, N. E. Sumatra, 24th Feb.— 

 • 13th May 1917 [Nob. 61-4, 365-7]. 



Wing, $, 96, 97, 98, 100, 102; 2, 98, 98 mm. 



Some of these specimens have the head and intersca- 

 pulium greener than others; all have the wings deep blue. 

 Two have the flanks slightly washed with fawn but this is not 

 improbably due to stain. In any event we are convinced that 

 it is impracticable to split up into races the Indo-Malayan 

 specimens of this group. 



BUCEROTIDAE. 



49. Anorhinus gaIeritus(Temm.). 



Eobinson and Kloss, p. 129; Hartert, p. 201. 

 $ imm., 2 , Deli Toewa, Deli, N. E. Sumatra, 7th Feb. 

 1917 [Nos. 11, 13]. 



50. Buceros rhinoceros, Linn. 



Hartert, p. 201. 

 2, Deli Toewa, Deli, N. E. Sumatra, 5th April 1917 



[No. 217]. 

 We have never seen specimens of "the rare form B. sil- 

 vestris Vieill., from Sumatra, which differs in having the 

 casque longer and almost straight and in the broader sub- 

 terminal black band on. the tail. 



51. Dichoceros bicornis(Linn.). 



Hartert, p. 201. 



2 $ , -2 , Deli Toewa, Deli, N. E. Sumatra, 1st— 30th 



April 1917 [Nos. 215, 216, 333]. 

 Identical with specimens from the Northern Malay 

 Peninsula. Bare in the southern third. 



52. Anthracoceros convexus(Temm.). 



Hartert, p. 201. 



$ , Tandjong Morawa, Serdang, N. E. Sumatra, 27th 

 February 1917 [No. 81]. 



R. A. Soc, No." 80, 1919. 



