collected in Dutch JSfeio Guinea. 183 



Cacomantis castaneiventris arfakianus. 



Cacomantis arfakianus Salvad. 0. P., Agg. i. p. 49 (1889). 

 Cacomantis castaneiventris Shelley, Cat. xix. p. 274 (1891) 

 [part.], 



a. ? . Mimika Eiver, 31st March, 1910. [No. 1118, 

 G. C. S.'] 



h, c. S 'i ' Parimau, Mimika River, 22nd Sept. & 1st Oct. 

 1910. [Nos. 233, 279, C. H. B. G.] 



d,e.S^' Wataikwa River, 26th Sept. & 31st Oct. 1910. 

 [Nos. 1257, 1559, G. C. S.] 



f. S juv. Iwaka River, 25th Jan. 1911. [No. 916, 

 C. H. B. G7^ 



Iris brown ; orbits lemon-yellow j bill dark olive-brown 

 (black in one specimen) ; gape orange ; feet lemon-yellow 

 or bright ochre. 



These birds seem to be undoubtedly referable to C. c. 

 arfakianus Salvad., and agree with the description in being 

 smaller and paler both above and below, but I do not find 

 that the bill is longer than in typical C. castaneiventris. 

 Total length in the flesh 223-234 mm. (=8- 8-9-2 inches). 

 Measurements : ^ . Wing 109 mm. ? . Wing 108 mm. 

 6- ;, 109 „ ?. „ 'l06 „ 

 ?. ,, 105 „ 

 In typical C. castaneiventris the wing-measurement is 

 112 mm. 



As in the young of C. castaneiventris Grould, the young of 

 C. c. arfakianus has the general colour of the upperparts 

 dark vandyke-brown, becoming rather more rufous on the 

 rump and upper tail-coverts, which are indistinctly barred 

 with blackish ; the tail-feathers black margined and toothed 

 along the edges with rufous ; and the underparts brownish- 

 buff, faintly mottled with dusky and shading into buff on the 

 middle of the belly and pale chestnut on the under tail* 

 coverts. Wing 104 mm. 



Iris dark brown ; orbits yellowish ; bill sooty-black, lemon- 

 yellow at the gape; feet lemon-yellow, dusky on the front of 

 the tarsi and toes. 



