36 REVIEW OF AMERICAN BIRDS. [PART I. 
Bill yellow; breast light cinereous, shading into a white ab- 
domen and crissum; throat white, with narrow central 
streaks of black (in all others uniform black) ° . ardosiacea. 
This genus—a strongly marked one among the American Thrushes 
—is confined to the West India Islands, and may possibly include 
more species than those here enumerated. These have been in a 
state of much confusion until disentangled by the discovery, on the 
part of Dr. Bryant, of the true 7. plumbeus, of Linnzus, as shown 
by him in his paper presented to the Boston Society of Natural 
History. 
Mimocichlia plumbea. 
Turdus plumbeus, Linn. Syst. Nat. ed. X, 1758, 169, not of ed. XII, 1, 
294 (except reference to Carespy), nor of Gme.iy, 814, 12, which 
does not belong to the series at all, being a mixture of different 
forms. 
Mimus rubripes, Bryant, Pr. Bost. Soc. VII, 1859, 114. (Blue Jay and 
Blue Thrasher of inhabitants.) 
Mimokitta plumbea, Bryant, Pr. Bost. Soc. N. H. 1863. 
Turdus viscivorus plumbeus, CatesBy, Carol. I, tab. xxx. 
Hab. Bahamas. 
Bill from base of skull about as long as the head. No indication of a ter- 
minal notch, or at best a very faint one. Commissural edge of upper jaw 
straight as far as the nostrils, then concave to the tip. Bristles about gape 
very short and inconspicuous, those at the angle of the mouth extended for- 
ward, reaching only half way to the nostrils. A narrow membranous ring 
round the eye, with a small naked space behind. 
Tarsi lengthened, rather more than equal to one and a quarter times the 
length of middle toe and claw. Scutelle indistinctly evident, almost oblite- 
rated and fused together, most distinct on the external face, eight in number 
to the base of middle toe. Outer lateral toe and claw the longer, reaching to 
base of middle claw, about equal to the hind toe and claw. 
Tail graduated ; lateral feathers .60, shorter than the middle ones. Wings 
a little shorter than the tail, moderately rounded ; 4th and 5th quills longest ; 
3d and 6th little shorter; 2d intermediate between 7th and 8th, .45 shorter 
than the longest; 1st quill with its exposed surface one-third the length of 
the 2d, slightly falcate, broadest in the middle, but with the sides about 
parallel to the end, where it is obliquely truncate with the corners rounded. 
General color slaty gray (like that of Mimus carolinensis), including crissum, 
tibie, inner wing coverts, etc.; rather lighter beneath. Feathers of crown 
with concealed dark central streaks. Lores, space beneath the eye, fading 
out behind and a broad square patch on the chin and throat widening 
a little behind, black, without any edging of white. Space between the rami 
of lower jaw, and a patch on its outer side white; the latter duller in color 
and continued beneath the eye, becoming more plumbeous, and forming an 
indistinct line of separation between the black of throat and that below the 
