284 GREATER WHITE-CRO \VNED ROCK-THRU toil. 



terminal half. Bill black; legs pale. The fifth 

 cjuill is the longest, and reaches the length of the 

 under tail-covers. 



Total length nearly 10 inches ; hill from the gape, 

 1 ; wings, 4 T 6 5 ; tarsus, 1 T 4 5 ; hind-toe and claw, 

 T 8 a ; tail from the base, 5. 



t- 



LESSER WHITE-CROWNED THRUSH. 



Petrocinda albicapilla, SWAINS. 

 PLATE XXXII. 



Above cinereous-brown ; beneath, and lateral tail feathers, 

 rufous ; ears, front, and sides of the head, black ; stripe in 

 the middle of the crown white ; nuchal collar rufous. 



THIS elegant little thrush is very considerably smaller 

 than the last, which it so much resembles, being not 

 much longer than seven inches. It is also a much 

 rarer species ; while, by its close affinity with our 

 Petrocinda vociferans* and superdliosa\ , it esta- 

 blishes the natural generic union of these three 

 birds, which, in many respects, so closely resemble 

 their prototypes, the red-starts and the stone-chats 

 (Saxicola}. 



* Turdus vociferans, Zool. 111., i. p. 180 The Reclam- 



meur of Le Vaill., Ois. d'Af. iii. pi. 104. 



t Le Juirfredric, Le Vaill., Ois. d'Af. iii. pi. 111. 



