APPENDIX TO CHECK LIST. 131 
No. 274bis. A fine species of humming bird has been discovered by 
Mr. H. W. Henshaw to inhabit Arizona, and has been determined 
by Mr. Lawrence to be Hugenes fulgens. (Am. Nat., viii, 1874, in 
press. ) 
274bis. EUGENES FULGENS (Svw.). 
Refulgent Hummingbird. 
No. 279. The authority is (Less.) Br. 
** 281. The authority is (LEss.) GLb. 
“© 292. The authority is (LaruH.) NUTT. 
<< 303? This species, queried in the text, and in Key, p. 195, may 
be regarded as a variety of 302, the intergradation, through 302a, prov- 
ing complete. See Ridgway, Am. Jour., iv, Dec., 1872. 
302b. SPHYRAPICUS VARIUS (L.) Bp., 
var. RUBER (Gm.) Ridg. 
Bed-breasted Woodpecker. 
Nos. 304, 305. Observations lately made by Mr. H. W. Henshaw 
(Am. Nat., viii, 1874, in press) are to the effect that Sphyrapicus thy- 
roideus is the female of S. williamsoni. The opposite sexes of each 
of these species have not been satisfactorily recognized, and upon 
examination of Mr. Henshaw’s material, I find almost conclusive evi- 
dences in favor of his views, substantiating his observations. Such 
sexual differences are unique in the family. As the older name, S. 
thyroideus will stand for the species, S. williamsoni becoming a syno- 
nyme. No. 305 is therefore to be cancelled. 
No. 307. The authority is (WaGL.) GRay. 
No. 318. A dark Floridan form of Scops has been characterized 
under the following name (Bull. Ess. Inst., v, 200) :— 
318c. SCOPS ASIO (L.) Br., 
var. FLORIDANUS Ridg. 
HFioridam Screech Owl. 
No. 320. The authority is FLEMING. 
“¢ 321. The authority is (BEcHST.) Bp. 
‘¢ 322. The term cinereum has priority over lapponicum ; the bird 
should stand as 
322. SYRNIUM CINEREUM (Gm.) Aup., 
Great Gray Owl. 
No. 327. The authority is (Gm.) Bp. 
‘¢ 329. The authority is (L.) Be. 
** 330. The authority is (Max.) Kaur. 
