4 BASS HES 
3. Leptopoecile sophiz obscura Przewalski. 
Leptopoecile obscura Przewalski, Zapiski Akad. Nauk St. Petersb. Vol. 55, p. 80 (1887) (Mountain-forests of 
N. E. Tibet, on the upper Ditshu) ; Journ. f. Ornith. Vol. 35, 1887, p. 277 (transl.). 
Leptopoectle henrici Oustalet, Ann. Sc. Nat. Zool. (7), Vol. 12, p. 287, pl. 10, f. 1 (1891) (« Plateaux du Tibet », 
5000 métr.; type in Paris Museum examined), 
Fig. Pleske, Aves Przewalsk. pl. 6, f. 5. 
Hab. Mountain forests of the Upper Yangtzekiang and its tributaries. west through the plateau of Tibet 
to Gyantse, north of Sikkim. 
2. GENUS LOPHOBASILEUS PLESKE 
Lophobasileus Pleske, \Wissensch. Result. von Przewalski’s Reisen, Vol. 2, 1890, p. 95 (Sp. un. 
Leptopoecile elegans Przewalski). 
Characters. Very nearly allied to Leptopoecile, but differing in the following details : Bill 
finer, longer and terminally even less curved, but more distinctly ridged than in the preceding 
genus. Wing narrower, the innermost secondaries (tertials) being shorter. Tail decidedly 
shorter than the wing, almost square, the lateral rectrices being scarcely 2 mm. shorter than 
the median ones. Occiput with a full, pendant crest. In other respects the single species closely 
resembles Leptococcile. Nostrils with a well-developed coriaceous operculum and partly hidden 
by the latero-frontal plumules, First primary half as long as second, tip of wing formed by 
fourth, fifth and sixth primaries. 
Coloration. Sexes dissimilar. The adult male is a lovely, most delicately-coloured 
creature, Pileum lilac grey, passing into whitish on frontal edge and on the sides; occiput with 
a long, pure white crest. Lores and short superciliary streak black, sides of head and neck, as 
well as nape, bright chestnut brown. Back dull blue, somewhat glossed with violet, uropygium 
and upper tail coverts turquoise-blue. Upper wing coverts greenish olive brown, quills and 
rectrices dusky with dull greenish or bluish edges. Under parts yinaceous cinnamon, middle of 
abdomen paler, flanks reddish violet. Under wing coverts, axillaries and quill-lining whitish. 
The female is darker and duller throughout, with the crest much shorter, the rump mixed with 
ereenish; the sides of the head and under parts are dingy whitish, with a vinaceous-cinnamon 
patch on the flanks. Wing 52-56, tail 44-47 mm. 
Geographical Distribution. North-western China, on the upper Chuanche. 
Habits. Inhabits coniferous forests of mountains at altitudes of from 7500 to 11,000 feet. 
Nothing is known about its nidification. 
1. Lophobasileus elegans (Przewalski). (Plate, Figs. 2, 2a.) 
Leptopoecile elegans Przewalski, Zapiski Akad. Nauk St. Petersb. Vol. 55, p. 77 (1887) (upper Chuanche); Journ, 
f. Ornith. Vol. 35, 1887, p. 275 (trans].). 
Fig. Pleske, Aves Przewalsk. Vol. 2, pl. 6, ff. 1,2 (9). 
Hab, North-western China : mountains on the upper Chuanche. 
3. GENUS REGULUS VIEILLOT 
Regulus Vieillot, Ois. Amer. sept. Vol. 2, 1807, p. 49 (Type : Regulus cristatus Vieillot). 
Corthylio Cabanis, Journ. f. Ornith. Vol. 1, 1853, p. 83 (Type : Motacilla calendula Linneus). 
