888 PnOCEEDINGR OF THE NATIONAL MUSEUM. voi. xxviii. 



From SjtnYj it differs most conspicuously in its long tail and abbre- 

 viated feet. Its charactei's are more fully shown in the following 

 comparative diagnoses : 



I. Poneropsar," iicic yeivm^J' 



Bill rather l)road, the feathering of forehead not extending to 

 anterior end of nasal fossa'; outermost (first) primary broad, and 

 longer than primary coverts; tail nmch rounded, about three-fourths 

 the length of wing; feet not reaching to end of tail; tarsus decidedly 

 longer than middle toe and claw; hind toe longer than middle toe; 

 metallic plumage of upper surface not stiffened and scale-like. 



Species: 



Povcrnjmtr aUyicapiUus (Blyth). 



2. Arizelopsar C)})crhnhn\<^ 



Bill l)road, the featliering of forehead not extending to anterior 

 end of nasal fossa'; four primaries sinuate on outer we])s, no notch on 

 iimer webs; first primary broad, and longer than primary coverts; 

 tail emarginate, and about three-fourths of wing; feet falling uuu-h 

 short of end of tail, the tarsus, middle toe, and middle claw combined 

 not over two-thirds the length of tail; tarsus decidedly longer than 

 middle toe with claw; hind toe longer than middle toe; metallic plum- 

 age of upper parts not stiffened and scale-like. 



Species: 



Arizelopsar femoridis (Richmond) . 



3. Spreo Bonaparte/^ 



Bill comparativel}^ narrow, the frontal feathering not extending 

 to anterior end of nasal fosste; four primaries sinuate on outer webs, 

 with also a conspicuous notch on inner webs; first primary broad, and 

 longer than the primary" coverts; tail rounded, less than two-thirds the 

 length of Aving; feet reaching nearly or quite to end of tail, the com- 

 bined length of tarsus, middle toe, and middle claw al)out three-fourths 

 the length of tail; tarsus decidedh' longer than middle toe and claw; 

 hind toe longer than middle toe; metallic plumage of upper parts not 

 stiffened and scale-like. 



SpecieH : 

 Sx>reo hicoloT (Ginelin). 

 Spreo superbus (Kiippell). 

 Spreo jnilcher (Mil Her). 

 Spreo Jtildebrandti hildebrarulti (Cabanis). 

 Spreo hildebrnndti shellei/i (Sharjie). 

 Spreo fischeri ( Reichenow ) . 



4. Heteropsar Sharpe.'' 



Bill rather narrow, the frontal feathering not extending to ante- 

 rior end of nasal fossa^; first primary narrow, and not longer than 



UTtovrjpoc,, diificilis; ^«/J, stnnms. 



''Type, Spreo alljicapUlnn VAyih. 



<•■ See p. 887. 



''Consp. Avium, I, 1850, p. 416 (type, Turdus bicolor Gmelin). 



'''Cat. Birds Brit. Mus., XIII, 1890, p. 185 (type. Lamprocolius acuticaudus Booage). 



