DIAGNOSIS OF THE KAMTSCHATKAN THREE-TOED WOODPECKER(PICOIDES ALBIDIOR).BY LEONHARD STEJNEGER.
Iii my "Synopsis of the Birds reported to inhabit Kaintschatka "(Bulletin U. S. Nat. Mus., No. 29, p. 321), I based the name Picoidesalbidior on some remarks by Prof. L. Taczanowski (Bull. Soc. Zool.France, 1S82, p. 39G). Through the kindness of my friend, the late( !ap1 . E. Hunter, of Petropaulski, specimens of the bird in question havecome in my possession. A brief formal diagnosis, therefore, may notbe out of place. Picoides albidior Stejn.Diagnosis.?Center of back, whole under side, including flanks andcrissum, and under wing coverts, pure white, without black stripes orbars ; outer rectrices white at tip without black cross-bars.Dimensions.?Wing, 120mi" ; tail-feathers, 78mm ; exposed culmen,24:""".Habitat.?Kaintschatka.Type.?U. S. Nat. Mus. No. 110,000.Synonymy:1858.?Picas tridaetylus Kittlitz, Denkw. Reise, 1, pp. 327, 329 nee (Linn.).?GuiLLEMARD, Cruise Marchesa, I, p. 90 (1886).1882.
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Picoides crissoleucoa Taczanowski, Bull. Soc. Zool. Frauce, 1882, p. 39G(nee Reichenb.).?Dybowski, Bull. Soc, Zool. France, 1883, p. 368.1885. Picoides albidior Stejneger, Res. Ornith. Expl. Kamtscb., p. 321.? ft?.,in Guillem, Cruise Marchesa, I, p. 277 (1886).?Id., Mitth. Ornitk YereiuWien, xi, 1887, p. 132.Proceedings U. S. National Museum, Vol. ~X1.