Genus Lantus, Auct. TAB. XI. LANIUS ERYTHROPTERUS. Mase. Lan. nuchd dorsoque griseis ; capite supra, alrs, caudaque atres ; corpore subtus, striga superciliart, remigumque apicibus albis ; alis macula lata rubra notatis. Foem. Capite griseo ; dorso, alis, rectricibusque virescenti-olivaceo notatis ; harum apicebus flavis. Longitudo corporis, 0% UNC. ; ale, 3+; caudee, 2+; tarsi, 1%; rostra, $. Tur collection contained two or three pairs of this singular bird, which are the only specimens that have ever come under our notice. The shortness of the tail, the elongation of the tarsi, and the general contour of the body, indicate a departure from any of the more typical forms of the genus to which it is provisionally assign- ed, and we yet wait for some account of its habits and manners to ascertain its relative situation in nature. The sexes offer well-contrasted differences in the colour of their plumage. In the male the crown, back of the neck, wings and tail are black with green reflections,—with this excep- tion, that the tips of the quill-feathers are white, and the secondaries fine rich chestnut ; the whole of the back and rump are grey; the throat, breast and under parts white with a roseate tinge, especially about the flanks and thighs. The upper mandible is black, the under grey ; the tarsi yellow. In the female the head and occiput are dark grey ; the back light brown; the shoulders olive green, as are the edges of the quill-feathers, which are otherwise black and tipped with white as in the male; the tail is olive green verging into black, each feather being tipped with yellow ; the breast and under parts are of a dull brownish white ; beak and tarsi as in the male. The figures are of the natural size.