Sub-Fam.—FR IN GIL LINÆ.
1 . A m m o d r a m u s l o n g i c a u d a t u s . Gould.
P late XX IX .
A. vertice humeroque cinereofuscis, dorso pallescenti fusco, uropygio rufescenti ftisco
tincto, plumis singulis strigâ mediâ fusca ; tectricibus alarum majoribus, remigibus
primariis secundariisqtie et caudâ nigrescentibus, cinereo albo externe marginatis ;
fronte, striga superciliari corporeque infra flavescentibus.
Long. tot. 5 | unc. ; alai, 2 f j caudæ, 3 ; tarsi, | ; rostri,
Crown of the head and shoulder, greyish brown; back, light brown, tinged with
reddish brown on the rump, and with a stripe of dark brown down the centre
of each feather; greater wing-coverts, primaries, secondaries, and tail blackish,
margined externally with greyish white; forehead, stripe over the eye, and
all the under surface, buff; bill black ; feet brown. Young, or a bird after
gaining its new plumage, differs in having the whole of the upper surface rich
brown, with a tinge of olive and with a stripe of dark brown down each feather,
and in having the wing coverts margined with reddish instead of greyish brown.
Habitat, Monte Video (November), Maldonado (June).
At Maldonado this bird frequented, in small flocks, reeds and other aquatic
plants bordering lakes. Tn general habits, as well as in place of resort, it resembles
those species of Synallaxis and Limnornis, with which it is often associated.
It appears to live entirely on insects, and I found in the stomach of one which I
opened various minute Coleóptera. Mr. Gould remarks, that the structure of this
Ammodramus is very remarkable, for that it has a great general resemblance both
in form and colouring to Synallaxis, although the thickness of its bill shows its
relation to the Fringillinæ. In its habits it certainly is more allied to the former
genus, than to its own family.
2 . A m m o d r a m u s M a n im b e , G. R . Gray.
P late XXX .
Ammodramus xanthornus, in Plate, and in Gould's MS.
Fringilla Manimbè, Licht., Cat. No. 253.
Emberiza Manimbè, TLOrh. 8f Lafr., Syn. p. 77.
Manimbè, Azara, No. 141.
My specimen was obtained from Maldonado.