VIREOSYLVIA. 335 
of bill. Young birds have considerably shorter bills, the colors less 
vivid, but otherwise similar to the adults. 
I find no appreciable differences in specimens from Guatemala, 
Panama, and Bogota, either in size or other characters, which can- 
not be readily matched by northern skins. soul, 
The name of Linneus, cited for this species, is based by him on 
pl. 253 of Edwards’ Gleanings, and on pl. 54 of Catesby’s Carolina; 
the former, however, and that first mentioned, being unquestionably 
the Jamaican V. calidris, while the latter refers to the subject of the 
present article. A strict adherence to the rule of priority may re- 
quire the name “‘olivaceus,” therefore, to be thrown aside, and some 
other, as “virescens,” Vieill., adopted; but as Catesby’s plate has 
priority of Edwards’, we may perhaps consider the priority of quota- 
tion as neutralized, and leave “‘olivaceus” for the species. A similar 
question exists in reference to the proper specific name of the North 
American “ Mimus polygloitus.” Iam not quite satisfied, however, 
that either of these names should be retained. 
About one hundred and thirty specimens have been examined, 
from various localities throughout the whole eastern province of the 
United States. 
Smith-|Collec-) Sex | Wh 
sonian| tor’s | and Locality. Gavisetnd Received from Collected by 
No. No. | Age. : 
26;933) |e ais Halifax, N.S. CH W. G. Winton. 
1,418 ote of | Carlisle, Pa. May 1, 44. | S. F. Baird. 
Tse llega atl |e “ May 3, 44. “ 
1,440 Aa 2 “ “es “ 
29,245 | 737 o | Washington, D..C. | April26,’60.) Dr. E. Coues. 
32,274 “te .. | Liberty County, Ga. dct Jos: becontes-s | |} eles : 
3,823 5 .. | Eutaw, Ala. ae Prof. Winchell. | = ----.- 
19,554 | 620 Q | Fort Resolution. June 7. R. Kennicott. | == esses 
22,678 | 509 .- | Fort Simpson. me 22) GO. Wiss eee ORS) VI anes pie 
27,035 se .. | Selkirk Settlement. awe Geo. M’Tavish. | — -eeeee 
21,049 oe Bs sf tals Donald) Gans = i" s yy yesticicc 
39,358 5S 2. | Cook County, Ill. | June 9, ’64.| R. Kennicott, | «es. 
24,287 og .. | Neosho Falls. Summer. PAPE GOSS Or Gables Ui tectatenra 
34,358 | 318 od | Republican Fork. May 26, 64.) Dr. BE. Coues., |  — eeceine 
19,084 yA Q Fort Cobb, Ark. Ma yezD ee OOM) “Je Eber Clarke: 2) 0G yl tarstere are 
21,945 | 540 tos |Upack Rivers WaT, 
Kootenay. June 14,’60.| A. Campbell, Dr. Kennerly 
22,043 96 .. | Bitterroot Valley. | Sept. 4,’60.! Dr. J.G.Cooper.|  ~—-... 
11,063 56 .. | Fort Bridger. Mept. lO Ge Drexler itg|igu Wate cters s 
13,181 : Q | Missouri River, 800 
miles ab. St. Louis. Ge Lt. Mullan. J. Pearsall. 
3,4181 51 od | Sioux City, Iowa. May. 20, ’64.| Capt. J. Feilnmer..| - ..+... 
8,695 i .. | Fremont, Platie Riv. isis Lt. Warren. Dr. Hayden. 
6,813 16 od | Devil’s River, Tex. at Col. Graham. J. H. Clark. 
6,814 a .. | Western Texas, aE Capts igPopey a i see vce 
13,602 ae -. | Guatemala. 55 Jax Grorildiee yay a Hh) ry) ike sirens 
42 163 5 i aie Cab. Lawrence. |  .«..... 
33,298 30 : San Jose, C. R. ban iy Carmody 2h) Seige 
29,550 42 Costa Rica. ae OBOE MC See | tality eteiuts'ers 
Fs, ae Panama R. R, : Cab. Lawrence. M’Leannan, 
$2,290 ne Bogota. Ge NG Mua wy Pe TUCO gill ie iif Vaso ctesese 
34,623 ae ae Ro RLMETS EVOOIIGH) | iby) live wleletee 
(21,945.) With eggs. 
