(len 
i iy ? 337 
beyond the closed wings and encroaching on the front part of the 
breast, is never seen in olivacea, where any olive is concealed. The 
crissum and axillars are much brighter yellow; the inner edges of 
the quills yellowish, not white. The tail feathers are decidedly 
olivaceous in their concealed portion, not clear brown; and the 
olivaceous of the back is much brighter and more yellow. 
Smith-|Collec-| Sex 
sonian| tor’s | and Locality. ay Received from Collected by 
No. No. | Age. : 
3,976 | 172 | g& | Monterey, Mex. cee oUtDENeCouchs |\\srpiiseeles 
3,977 | 178 g ce Sa Cy cae te yin aes 
34,021 0 -- | Mazatlan, Mex. June16, ’62.| Col. A.J.Grayson.| —«...- 
34,023 | 000 oc O: se COE iad TAP WO Hie IM I oes 
34,024 | 0000 5 “ [ma, Mex. ce eS iid) Mb ntied ) J dawisaceie 
23,787 | 151 a Rosario, near Coli-| June, 1863. | J. Kantus, = |  — ewes 
23,782 | 157 ae ‘s SO) EEE ee erajcters Me aka hal] APM thls wia\e'n 
23,790 164 a ss CoD gigi be CURA Ret ete TR ai ene) 
30,504 | 134 Ss San Jose, C. R. aes Dr. v. Frantzius. | =e -- +e 
30,505 179 A. ce Acts po ee ae Ee Wee 
33,296 | 133 od sé Sat SEP We UN TRAE 2 OR ai slaiele 
33,297 ie AP ss at SCALING ne) Meals oe erarecetele 
38,929 *. oe Isthmus Panama. | Jan: 25,765.) BF. Hicks. — | © essen 
34,608 ze “4 os shy JE HeSROOMO, | IEE OM seldleverws 
we 170 od ve coe Cab. Lawrence. ,| © eevee 
38,928 Sc fof Panama. Jan. 12, °65.| F. Hicks. Die at Giteters ove! 
(3,976.) Eyes yellow. (38,929.) Eye red, (38,928.) Eye chocolate. 
Vireosylvia chivi. 
Sylvia chivi, Vieru. Nouv. Dict. XI, 1817, 174 (based on Azara, Con- 
tramestre Gaviero, Apuntam. IJ, 34, no. 152).—Is. Encyclop. 
Méth. 1823, 437. 
Hab. La Plata region; north to Bahia. 
(No. 16,340, 9.) General distribution of color the same as in JV. olivacea. 
The concealed portion of tail feathers more olivaceous than brown. The 
inner edges of the quills pale olivaceous- 
yellow, of the rectrices brighter yellow. 
Sides of the body greenish-yellow. Axil- 
lars and crissum sulphur yellow. Super- 
ciliary dusky stripe deep and distinct. 
Bill plumbeous, dusky above, pale at the ZN 
base below. Eo 
Third quill longest; 2d and 4th very \ 
little shorter; 1st shorter than the 5th, 
nearly intermediate between it and the  , Vireosylvia chivi. (Vermeijo Riv.) 
6th. 
(No. 16,340.) Total length, 4.95; wing, 2.45; tail, 2.10; width of lateral 
feather, .25; difference of 1st and 2d quills, .14, of 1st and 3d, .21, of 2d and 
5th, .09, of 3d (longest) and 9th, .54; length of bill from forehead, .59, from 
nostril, .35, along gape, .67 ; tarsus, .65 ; middle toe and claw, .50, claw alone, 
-14; hina toe and claw, .43, claw alone, .15. 
A male bird, No. 30,973, from the Vermejo, is of precisely the same size. 
22 May, 1866. 
20973 
