CERTHIADiE. 



189 



Nuthatch above deep sky-blue, beneath vinaceous-ash, with the 



forehead and supercilise davk ; the quills black. 

 Sitta velata. Temm. PL Col 72./. 3. 



Inhabits Java and Sumatra. Length five inches: 

 the Sumatran specimens are rather larger ; they have 

 the top of the head, the nape, and the upper parts of 

 the body of a rich azure ; the wings and tail plain 

 blue, with their feathers black on the inner web and 

 edged with blue : the cheeks and sides of the neck 

 are purplish-blue : the chin is white, and the vent of 

 the under parts are ash tinged with purple. The 

 male has a mark on the forehead and a band above 

 the eye black ; the beak is yellow, with a black tip. 



Sp. 6. Si. pusilla. Shaixi, v. viii. p. 113. Wils. Amer. Orn. ii. 

 pi. 15./. 2. — Cai-olina. 



Sp. 7. Si? chrysoptera. Shaw, v. viii. p. 120. — Orange-winged 

 Nuthatch. Lath. Gen. Hist. v. iv. p. 77. pi. Ixiii. — New 

 Holland. Greatly allied to the following genus. 



GENUS CCXXXVIII. 



Rostrum breve, gracile, valde 

 compressum, subulatum, 

 acutum, mandibulce apici- 

 bus recurvatis. 



Nares basales, laterales, mem- 

 brana nuda tectae. 



Pedes mediocres ; digiti late- 

 rales aequales, externi in- 

 aequales : ungues forti, 

 compressi, arcuati. 



Cauda cuneiformis. 



— XENOPS, Illiger. 



Beak short, slender, greatly 

 compressed, subulated, 

 acute ; mandibles with 

 their tips recurved. 



iVo^^riZ* basal, lateral, clothed 

 with a naked membrane. 



Legs moderate: the lateral 

 toes equal, the external un- 

 equal : claws strong, com- 

 pressed, bent. 



Tail wedged. 



