164 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
do they belong in Bleda; but find apparently their nearest ally in 
Chlorocichla, from which, however, they may be readily distin- 
guished. 
The species are: 
Arizelocichla nigriceps (Shelley). 
Arizelocichla olivacea (Swainson). 
Arizelocichla albigularis (Sharpe) (=leucolaema Sharpe). 
Arizelocichla fusciceps (Shelley). 
Arizelocichla falkensteint (Reichenow). 
Arizelocichla chlorigula (Reichenow) (=chlorolaema Sharpe). 
Arizelocichla striifacies (Reichenow and Neumann). 
Arizelocichla kikuyuensis (Sharpe). 
Arizelocichla milanjensis (Shelley). 
Arizelocichla kakamejae (Sharpe). 
Arizelocichla tephrolaema (Gray). 
CHLOROCICHLA Sharpe 
Chlorocichla SHarpe, Cat. Birds Brit. Mus., v1, 1881, p. 112. 
Chars. gen.—Similar to Arizelocichla, but tail about equal to wing ; 
nuchal hairs rather shorter ; bill stouter, more compressed, and rela- 
tively shorter, the frontal feathering extending farther out on nasal 
operculum. 
Description.—Tail equal to wing, or very slightly shorter; throat 
feathers not lengthened; tarsus strongly scutellate; wing about 334 
times the length of tarsus; tarsus about 114 times the exposed cul- 
men; head not crested; hairs on nucha short, branched; rictal 
bristles rather weak, reaching about half way to end of bill; bill 
moderately short, somewhat stout and compressed, higher than broad 
at anterior edge of nostrils, broader than high at base, the height at 
base, however, more than one-third the length of exposed culmen; 
culmen curved from base; gonys slightly ascending; maxilla with 
one subterminal notch; nostrils almost linear, operculate, the basal 
three-fourths of the operculum more or less feathered ; nasal bristles 
few and short. 
Type.—Trichophorus flaviventris SMITH. 
This excellent genus is very different from both Bleda and 
Phyllastrephus, under each of which it has at times been placed. All 
its forms appear to be subspecies of a single species. 
They are: 
Chlorocichla flaviventris flaviventris (Smith). 
Chlorocichla flaviventris mombasae (Shelley). 
Chlorocichla flaviventris centralis (Reichenow). 
Chlorocichla flaviventris zambesiae (Shelley). 
Chlorocichla flaviventris occidentalis (Sharpe). 
