402 Birds of Celebes: Laniidae. 



The only specimen as yet known of this species was obtained by the 

 Sarasins during their journey from Gorontalo up the valley of the Bone into 

 the mountains where that river finds its source ; it is unfortunately most likely 

 a female and seems to be young, so that it is not possible to state with abso- 

 lute certainly that the birds inhabiting the southern mountains, P. bonthaina, are 

 distinct from it. It is improbable, however, that the wings would change colour 

 much in adult birds, and they are dark greenish yellow-olive in P. bonensis, and 

 dark slate-grey with a wash of olive in P. bonthaina. Other differences are: 

 the chin and throat streaked with slaty brown, with broad cinnamon edges to 

 the feathers in P. bonensis, with light buff edges in P. bonthaina; the mantle 

 washed with the yellow-olive of the lower back in P. bonensis, but dark brownish 

 slaty in P. bonthaina. But, as Mr. Hartert has shown, the young P. bonthaina 

 has the whole upper surface washed with olive, and the head and neck 

 olive-brown. 



GENUS COLLURICINCLA Vig. Horsf. 



Culmen about as long as the cranium, bill across the nostril narrower than 

 Mgh, nostril roundish, not ossified posteriorly — partially concealed by feathers 

 and bristles ; tail square ; tarsus rather large, scutellated ; second primary longer 

 than the secondaries. Occurring in Australia; New Guinea: Sangi. 



-+ * 151. COLLURICINCLA SANGIRENSIS (Oust.). 



Sangi Shrike-thrush. 



a. Pinarolestes sanghirensis (1) Oust., Bull. Soc. Philom. Paris (7) V, 1881, 71; (2) Ecbw. 

 & Schalow, J. f. 0. 1884, 400; (3) W. Bias., Ornis 1888, 584. 



Descriptions. Oustalet a 1; Rchw. & Schalow n 2. 



Male and female. Above olive-brown; wing-coverts and lower back reddish brown; 

 tail-feathers above deep brown, below clearer bi'own ; under-parts brownish, pass- 

 ing into greenish yellow at the flanks; bill (in dry skin) pale brown towards base of 

 lower mandible, the rest black; feet blackish brown. Wing 98 — 100 mm: tail 82; 

 bill 18—19 (Oust. al). 



Distribution. Great Sangi — Petta (Mus. Paris a 1). 



The two specimens, indicated as male and female, in the Paris Museum 

 are found by Dr. Oustalet to have affinities with CoUuricincla megarhyncha 

 (Q. & G.) of New Guinea and some of the neighbouring islands, but still closer 

 resemblance to C.melanorhyncha {M.qj ex oiM.j?,oxe. From the former, C. sangi- 

 rensis differs in the colour and form of its bill, and seems to be a little larger 

 than average specimens of that species. C. melanorhyncha is distinguishable from 

 the Sangi form by its uniform black bill, paler feet, the green reflections of the 

 upper surface most strongly pronounced upon the nape, the forehead streaked 

 with yellowish, the external edgings of the quills yellowish red, rather than 



