16. PICOIDES. 



277 



nition, although, from its geographical position, it might be unwise 

 to separate it from P. tridactylus. 



flab. The greater part of Europe, but rare in the south ; extending 

 east through Southern Siberia to the A moor, and into Mongolia. 



a, h. (S 9 ad. St. 

 c, d. (S ad. ; e. (^ 



imm. sk. 

 /, (J. S ad. ; h. S 



imm. sk. 

 i. S ad. sk. 

 k, /. c? 2 ad. sk. 

 m. 5 ad. sk. 

 w, 0. (S 2 ad. sk. 

 p, q. 6 $ ad. sk. 



r. tS ad. sk. 



^<. Juv. sk. 



t, n. c? ? ad. sk. 



V. 2 ad. sk. 



10. S ad. sk. 



.V. Skull. 

 y. Sternum. 



N. Bothnia. Purchased. 



Sweden, Dec. ( Wheehuright). Tweeddale Coll. 



Kopvand. 



Salvin-Godman Coll. 



Stockholm, Jan. Mr. Meves [C.]. 



Wermland. Mr. Meves [C.]. 



Weriuland, Dec. (ScJdiiter). Hume Coll. 



Archangel, Nov., Dec. Hume Coll. 



Ursern, Switzerland, Aug. Tweeddale Coll. 



{H. Saunders). 



Nisamskaja, River Ob, Sept. Dr. 0. Finsch [C.]. 



1876. 



Lepsa Rivei', Turkestan, June. Moscow Museum. 



Semiretchje, May 27th. Dr. Severtzoff [C.]. 



Kossogol, Mongolia, Sept. Dr. SevertzoiF [C.]. 



17th. 



Teksa River, Mongolia, Dr. Severtzoff [0.1. 



Aug. 19th. 



S. Germany. Dr. Giinther. 

 Purchased. 



Subsp. a. Picoides crissoleiicus. 



Picus tridactylus (non Linn.), Fal/as, Zoor/r. Ilusso-Asiaf. i. p. 415 



(1831) ; Middend. Sih.-Eeise, Zool. p. 132 (1851). 

 Apternus crissoleucos, Bp. Cvnsp). Volucr. Zijijod. p. 8, no. 82 (1854). 

 Tridactj'lia camtschatcensis, Lichf. Nomencl. Ar. 1854, p. 75 (pt.) ; 



Cah. S)- Heme, Miis. Hein. iv. p. 25 (1863). 

 Apteruus crissoleucu.s, Reichenb. Scans. Picines, p. 362, no, 836, 



pi. dcxxxi. tigs. 4197-98, S $ (1854). 

 Picoides crissoleucus, Malh. Picidce, i. p. 180, pi. xl. figs. 1 J ad., 



2 2 ad., 5 c? juv. (1861); Grmj, Lid Picid. Brit. 3hts. p. 30 



(1868); id. Hcmd-l. B. ii. p. 181, no. 8540 (1870); Tacz. Bull. 



Soc. Zool. France, 1876, p. 240; id. op. cit. 1882, p. 396. 

 Picus crissoleucus, Siindev. Consp. An. Picin. p. 14 (18(>6). 

 Picoides tridactylus (non Linn.), Seeh. Ibis, 1878, p. 325. 

 Picoides albidior *, Stejn. BhU.'U. S. Nat. Mus. no. 29, 1885, pp. 321, 



338, 342 ; id. Proc. U. S. Nat. Mus. 1888, p. 168. 



Adult male, summer ijlumage. Resembles P. tridactylus, but 

 differs in the sides of the chest and breast having only a few narrow 

 striations of black, and the flanks and thighs being sparingly spotted 

 with black ; the lower scapulars tipped with white, and the wing- 

 coverts occasionally spotted with white ; upper series of upper tail- 

 coverts spotted with white ; the white on the back is less striped 



* I have carefully examined the type of Stejneger's species, and cannot 

 separate it from P. cri.isolcucus. 



