48 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.80 



from the Likiang Mountains, Yunnan, and a female from Sungpan, 

 Szechwan, are somewhat lighter than the two specimens listed above, 

 especially the male from Yunnan, which has the pileum and hind 

 neck much lighter, more like Kashmir specimens, but it is quite worn. 

 On geographic grounds these birds should belong to Ginclus cinclus 

 szetschwanensis Meise,^" but Mr. Bangs informs me that this is a 

 synonym of heicki. I have examined no specimens from Kansu. 



Family TROGLODYTIDAE, Wrens 



141. SPELAEORNIS ROCKI Riley 



Spelaeornis rocki Riley, Proc. Biol. Soc. Washington, vol. 42. p. 214, 1929 

 (mountains of Hofuping, Mekong Valley, Yunnan). 



One female, west of Yungning, 13,000 feet, May, and one male, 

 Ndamucho, 14,000 feet, northwest Yunnan, October. 



During a previous expedition to Yunnan, Doctor Rock collected 

 the type. This was originally assigned to Spelaeornis souliei as pos- 

 sibly representing a young plumage.*^^ Later Doctor Rock sent in 

 the female from west of Yungning, which, while differing from the 

 type in minor details, evidently belongs to the same species. As 

 these two specimens differed materially from the figure of the type 

 of Spelaeornis souliei given by Hartert,*'^ and the supposition that 

 they were young plumages of that species could no longer be main- 

 tained, it was described as new as follows : 



Pileum argus brown, each feather rather broadly tipped with black and with 

 a rather large sub-apical white spot; upper-parts sudan brown, each feather 

 tipped narrowly with black and with a small triangular buffy-white spot ; cheeks 

 and sides of neck a little lighter than the back, with huffy shaft streaks, the 

 leathers with narrow black tips ; the feathers around the eye white posteriorly ; 

 throat and jugulum white; breast, sides and flanks ochraceous-tawny, the 

 feathers of the breast and abdomen with rather broad white shaft-streaks and 

 rather narrow black tips; the flanks with a few narrow white shaft-streaks, 

 the under tail-coverts a little darker than the flanks, each feather with a sub- 

 apical white bar and black tip ; wing-coverts deep mouse gray with a brownish 

 wash with a few white shaft-streaks and barred with black ; flight feathers 

 snuff brown rather broadly barred with black ; tail snuff brown with narrow, 

 irregular black bars; the upper mandible fuscous-black; the lower mandible 

 chamois (in the skin). Wing, 48; tail, 50; culmen, 10; tarsus, 20; middle-toe, 

 13 mm. The specimen from west of Yungning, 13,000 feet, Yunnan, May, 1928 

 (U. S. Nat. Mus. No. 312284), differs from the type in having the forehead more 

 profusely spotted with white; the white sub-apical spots and black tips to the 

 feathers of the pileum smaller ; the basal color of the crown and occiput of the 

 same color as the back; below, the white of the jugulum extends down the 

 center of the breast, the black apical spots are obsolescent, and the white shaft- 

 streaks on the flanks have almost disappeared. It measures : Wing, 47.5 ; tail, 

 50.5 ; culmen, 10.5 ; tarsus, 19.5 ; middle-toe, 12 mm. 



"Orn. Monatsb., vol. 36, p. 139, 1928. 



« Proc. U. S. Nat. Mus., vol. 70, art. 5, p. 33, 1926. 



«2Nov. Zool., vol. 17, pi. 7, flg. 1, 1910. 



