4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



all white ; upper parts brownish olive instead of olive-citrine, with 

 much less argus brown on the forehead and supra-loral region ; feet 

 darker brown than those of adults; with narrow reddish shaft- 

 streaks on the feathers of the crown, occiput, back, and scapulars, 

 which are absent in adults ; these central stripes are obsolete on the 

 back, 'and plainest on the scapulars; tail bistre. Both young and 

 adults lack white tips to the rectrices. 



Measurements of type (adult male).— Length of skin, 202 ; wing, 

 100 ; spurious primary, 32.5 ; tail, 92 ; culmen (chord), 20 ; tarsus, 36. 



Average measurements of four adult male topotypes. — Wing, 

 100.8; spurious primary, 32.5; tail, 91; culmen (chord), 19.3; tar- 

 sus, 35. 



Average measurements of four adult female topotypes. — Wing, 

 99; spurious primary, 29.5; tail, 89.8; culmen (chord), 19.1 ; tar- 

 sus, 35.2. 



Remarks.— This ground-thrush inhabits the bamboo zone on the 

 west side of Mount Kenia from 8,000 to 9.000 feet. Mr. Heller 

 obtained an adult female at the summit of the neighboring Aberdare 

 Mountains, altitude 11,000 feet. Of the thirteen specimens obtained, 

 five were taken in traps set for small mammals, the remainder having 

 been shot. The form is known only from the Kenia and Aberdare 

 mountains. 



GEOCICHLA GURNEYI RAINEYI, new subspecies 

 Rainey's Ground-Thrush 



Type-specimen.— Adult male, Cat. No. 217721, U. S. National 

 Museum ; caught in rat trap set in the forest at the summit of Mount 

 Mbololo, altitude 4,400 feet, British East Africa, November 9, 191 1, 

 by Edmund Heller. (Original number, 419.) 



Description of type (adult male).— Mantle olive-brown, this color 

 shading into dresden brown on rump, innermost secondaries, and 

 exposed portion of outer webs of remaining quills ; head with crown 

 and occiput deep olive-gray, this color faintly tinged with tawny 

 on forehead; supra-loral spots of ochraceous-tawny ; lores ochra- 

 ceous-buff, slightly mixed with brownish black; a short-feathered 

 eye-ring of light buff anteriorly, white posteriorly, with a central 

 spot of dusky olive, above and below, corresponding to the dark- 

 anterior band of the auriculars ; ear-coverts dark grayish brown, 

 crossed by a broad oblique central band of light ochraceous-buff ; 

 cervix, supra-auricular region, and sides of neck olive-gray, tinged 

 with tawny like the forehead ; rectrices uniform prout's brown, with 



