394 



Birds of Celebes; Laniidae. 



A * 142. PACHYOEPHALA SULFURIVENTER (lAveedd.). 



Northern Grey-breasted Thick-head. 

 Plate XVIII. 



a. Hyloterpe sulfuriventra (1) Wald., Ann. & Mag. N. H. 1872, (4) IX, 399; (2) id., Tr. 



Z. S. 1S72, ATII, 117; (^5; Meyer, J.f. 0. 1873,405; (4) W. Bias., J. f. O. 1883, 137. 



b. Hyloterpe sulphuriventris (1) Wald., Tr. Z. S. 1875, IX, 179; // Gould's B. Asia 11, 



in text to pi. 12. 



c. Pachycephala sulfureiventris (1) Briigg., Abh. Ver. Bremen lS7(j, V, 69. 

 Pacliycephala sulfuriventer (1) Gadow, Oat. B. Vm, 1883, 221; (2) Biittik., Notes Leyd. 



Mus. 1893, 1(38 (stdficreiventer); (3) M. & Wg., Abh. Mus. Dresd. 1895, Nr. 8, p. 10; 

 (4) iid., ib. 1896, Nr. 1, p. 5. 



d. Hyloterpe sulphuriventer (1) Sbarpe, Ibis 1887, 451; (2) Everett, J. Str. Br. R. A. S. 



.1889, 122. 



"Kios", Minahassa, Nat. Coll. 



Adult. Head above and neck gi-eyish olive-brown; the upper surface olive washed with 

 yellowish, yellower on the upper tail-coverts, tail dusky washed with yellow-olive, ex- 

 posed parts of wing-coverts and outer edges of quills paler, the tips of the 

 greater wing-coverts palest, almost forming a bar; lores, orbital region, and ear- 

 coverts paler brown than the head above; chin, throat and jugulum greyish white 

 becoming olivaceous grey on sides of chest and upper breast; remaining under- 

 l^arts suliDhur-yellow, very intense on the under tail-coverts; under wing-coverts 

 and inner edges of quills below where they rest upon the body buffy white; 

 rest of quills below dusky drab; tail below dusky drab, washed with yellow 

 (cf. Crater-forest of Mt. Klabat, 5700 feet ca., 26. Sept. 1893: Sarasin Coll.). "Ms 

 dark brown, bill black, feet slate-colour" (Sarasins). 



Female. Not knoAvn to differ from the male. Less grey on the head? 



Young. Younger birds seem to have less of a grey tinge on the head. 



Remarks. The above -described male agrees with seven other specimens in the Sarasin 

 Coll. and Dresden Museum from the hill-country of the Minahassa, but the olive tint 

 of the head is duskier and greyer. These differences are probably due to age in part, 

 but very likely in part also to locality. 



A specimen in the Sarasin Collection from the Lake of Matanna, discovered 

 by the travellers in South-east Central Celebes, does not seem to differ from birds 



from the North Peninsula. 



Wing 84 mm. 



Measurements. 



Wing 



a. (Sarasin Coll.) cf, Mt. Klabat, 26. IX. 93. . . . 84 



b. (C 10813) ad., Tondano, Aug.— Sept 79 



c. (C 10815) ad., Tondano, Aug.— Sept 82 



d. (C 10814) ad., Tondano, Aug.— Sept 78 



e. (Sarasin Coll.) cf ad., Tomohon, 8. X. 94 ... . 82 



f. (Sarasin Coll.) c^ — Tomohon, 2. IV. 95 . . . . 83 



g. (Sarasin Coll.) O — Tomohon, 7. IV. 94 . . . . 81 

 h. (Sarasin Coll.) r^ — Rurukan, 4. X. 94 ... . 85 



Bill from 

 nostril 



9 

 8.5 



8.5 

 9 



8.5 



Distribution. North Celebes (Meyer a 1, a 3], near Tondano (Nat. Coll.), Mt. Klabat 

 (Sarasins), Tomohon and Rurukan (iid.), Lake Matanna (iid.). 



