342 BIRDS FROM YEZO, JAPAN—STEJNEGER. 
be observed that only one specimen of typical U. ussuriana has been 
critically compared, so far as I know. Furthermore, the Korean exam- 
ples differ in no way from Japanese .pecimens; and finally, some spec- 
imens in my series are slightly less rufescent than others. Until it be 
proven that there is an appreciable difference in the coloration of the 
even-tailed birds I shall regard them as all entitled to the name U. ussu- 
riana. 
Measurements. 
| uo 3 Ele aie 
Collector | 5e* 18..).98) 2463 leas 
Museum and No. aid we and Locality. | Date. wie eZ| oa] F =i ES 2 op 
. age. | eal eel SN retire) cia) |= 
er i RS se eae ule 
| ee Het s BH Ae es) 
| 
Se.Coll.Tokyo1374| Ota.....-. aCe) EET EON CLO esl Seelam 527/285 acne ehGney P 
U.S. Nat. 91456 ...| Jouy, 490. -|of' ad-|....do.....-...| July 12 ..... GA N12 ae 20. 147 J) 2 Seheeee 
U.S. Nat. 96243 ...| Blak. 1555.|  ad.| South Yezo -.| September ..| 53 |...:| 10 |....-}.-<.- esoe Sane 
iW. S. Nab. 120441.) Henson ..-| ad? |*Hakodate --5-|.225..2. 2-2 22 wate] oe 2b LORD Ohad eeee |S Sate 
Des eN abel 204427.5| eeenson -)2 | allel. 2260) oo seen ema) ees emn ole oie 54) (ooee |) 10 aoe bea o) sees 
Un weeNatw 204492. CHenkon =| sad-|- 2edO mcs 2--)ececes seme 53'-|°29" 10) 219s eee 2) see 
U.S, Nat. 120444 -.| Henson...) ad.}.-..d0......---|.-..0-------- BL 28 Ow 9 7 eee wees 
| | | 3 
U.S. Nat. 114377. ..| Jouy, 1581. | ad.| Fusan, Korea.) Apr. 25,1886] 53 | 29} 10 |19 ..... 2 95 
U.S. Nat. 114376...) Jouy, 1505-|f' ad.|....do......--- May 3, 1886} 54 | 30 | 10.5) 20 |..... a5 oer 
WIS.Nat. 114374. -.| Jouy, 1594. | ad-|..-:dov.---.2.-2 May 2,1886| 54 | 29 | 10 20)7] 167) lise 93 
U.S. Nat. 114875...) Jouy, 1595.) ad.|....do.......-. May 2,1886] 53 | 30] 10 | 19 | 16.5) 3 93 
1374. 1 primary much larger than primary coverts; 2 about = 9; 3 slightly shorter than 4 and 5 
which are equal and longest. Tail-feathers subequal. 
114876. ‘Iris very dark brown.” 
Zosterops japonica 'TEMM. & ScuL. (180) 
g and 9, Nos. 91, 92; Hakodate, March 11, 1883, and January 12, 1885. Normal both 
in color and size (bills 10.5™™ and 11™™). U.S. Nat. Mus. Nos. 120479-80. 
Ttis interesting to note that this delicately looking bird which belongs 
to a tropical family winters even in Yezo. 
Parus hensoni, sp. nov. 
g ad. Henson, No. 230; Hakodate, November 7, 1884; 9 ad., No. 231, ibid., October 
12, 1884. U.S. Nat. Mus. Nos. 114093 and 120475. 
Henson’s collection reveals the rather surprising fact that we have 
at least three forms of Marsh-tits in Japan. When a short time ago I 
reviewed the Japanese Paride (Proc. U. 8S. Nat. Mus., 1x, 1886, pp. 
378-381) I argued simply from the suppesition that there were only 
two forms to account for, little dreaming that a third one would turn 
up to complicate this complicated question still further. 
The two specimens from Henson agree closely with the Hondo speci- 
mens (for which we deem it best at present to retain the name P. 
borealis) in regard to size and proportions, but differ considerably in 
color, having the top of the head glossy bluish black, like the other 
Yezo form, which is at once distinguishable by its long and strongly 
rounded tail. In the review above referred to, I called the‘ .er P. 
brevirostris with a query, as I had considerable doubt as to the correct- 
ness of this identification. This doubt has grown inte vertainty since 
