AET. 16. BIRDS FEOM NORTH CELEBES RILEY. 85 



A series of 10 males measure: Wing, 81-86.5 (82.5) ; tail, 58.5-64 

 (61.4) ; culmen, 13-15 (14.2) ; and 10 females: Wing, 77.5-83 (79.6) ; 

 tail, 57.5-68.5 (61.6) ; culmen, 13-15 (14.1). 



As Meyer and Wiglesworth ^^ state this seems to be a mountain 

 species ; the above series having all been taken in the highlands. 



The present species of Miiscitrea ^* recalls birds of the genus 

 Cyclarhis which Pycraft ^^ has made the type of a family Cyclar- 

 hidae. In external structure the two genera are almost identical, ex- 

 cept Cyclarhis has stronger feet and the frontal and rictal bristles 

 are less developed. The unspotted condition of the young described 

 above would seem to exclude Muscitrea from the Muscicapidae and 

 Laniidae,, but in this character it is ahnost identical with the Gyclar- 

 hidae. The latter is so far as known Neotropical, so the only alterna- 

 tive at present is to recognize the birds of this type as Falcunculidae. 



167. PACHYCEPHALA PLUVIOSA Riley.6« 



A good series of both sexes and one immature, Rano Rano, Decem- 

 ber 11-27, 1917. 



As the original description may not be accessible to all, it is re- 

 peated here: 



Pileum and auriculars medal bronze, shading into buffy brown on the fore- 

 necli ; across upper back a band of deep neutral gray ; rest of back warbler 

 green, becoming more yellowish on the rump ; breast neutral gray, becoming 

 much lighter on the abdomen ; under tail-coverts cinnamon ; flanks pyrite yel- 

 low ; wings fuscous-black, the feathers edged outwardly with the color of the 

 back, this edging on the outer primaries very narrow and grayish toward the 

 tips; under wing-coverts and the inner margins of the remiges where they rest 

 against the body, cinnamon ; tail above deep neutral gray, the outer feathers 

 fuscous-black on the inner web. Wing, 81.5 ; tail, 67 ; culmen, 13 ; tarsus, 21 ; 

 middle toe, 13.5 mm. 



The female resembles the male, except the pileum is saccardo's olive with a 

 yellowish wash and the chin and throat cinnamon-buff, streaked with deep 

 neutral gray. 



It is evidently similar to Pacliycephala bonthaina of south Celebes, but the 

 iJileum and throat are brown, not greenish yellow-olive. Pacliyecpliala ban-en- 

 sis of north Celebes was described from an immature specimen. The immature 

 specimen of Pacliycephala pluviosa when compared with the plate of Pacliy- 

 cephala bonensis in Meyer and Wiglesworth " presents a number of differences ; 

 the former has the pileum saccardo's olive, the auriculars are like the pileum, 

 there are no cinnamon edgings to the outer primaries, the breast is without 

 a buffy-cinnamon band down the center, and there are other differences. 



In the original description only the measurement of the type was 

 given, the series measures as follows: Twelve males, wing; 80-83.5 



M Birds of Celebes, vol. 2, 1808, p. 395. 



" Matthews, Avis. Av. Record, vol. 2, 1913, p. 57, has showa that Musoitrea Blyth is the 

 proper name to employ for this genus. 

 65 Proc. Zool. Soc, 1907, pp. 377, 378. 

 68Proe. Biol. Soc. Wa.sh.. vol. 32, 1919, p. 95. 

 w Birds of Celehes, vol. 2, 1898, pi. 18. 



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