Above ashy brown, with perhaps a tinge of rusty on the rump; beneath fulvous-white, more fulvous on the flanks, inside of wing, and crissum. Beneath, except chin, throat, and from middle of abdomen to crissum, with well-defined V-shaped spots of dark brown at the ends of the feathers, largest across the breast. Loral region hoary. Wings with two narrow whitish bands across the tips of greater and middle coverts; the quills edged externally with paler. Outer three tail-feathers with a rather obsolete white patch in the end of inner web, and across the tips of the outer. Spring specimens are of rather purer white beneath, with the spots more distinct than as described. Length of 12,960 (skin), 10.00; wing, 4.10; tail, 4.65; first primary, 1.60; second, 2.50; bill from gape, 1.40, from above, 1.15, from nostril, .90; tarsus, 1.26; middle toe and claw, 1.12; claw alone, .30. HAB. Cape St. Lucas, Lower California. This species is curiously similar in coloration to _Oreoscoptes montanus_, from which its much larger size, much longer and decurved bill, and the graduated tail, of course readily distinguish it. It agrees in some respects with _H. rufus_ and _H. longirostris_, but is smaller, the bill longer and more curved; the upper parts are ashy olivaceous-brown instead of rufous, etc. HABITS. So far as is at present known in regard to this species it appears to be confined exclusively to the peninsula of Lower California. It has, at least, been met with nowhere else. Mr. Xantus found it quite numerous in the vicinity of Cape St. Lucas, in a region which, as he describes it, was singularly unpropitious. This was a sandy shore, extending about a quarter of a mile inland, whence a cactus desert stretched about six miles up to a high range of mountains. Throughout this tract the ground is covered with a saline efflorescence. There is no fresh water within twenty-eight miles. Mr. Xantus speaks of the habits of this bird as being similar to those of the _Oreoscoptes montanus_. It was a very abundant species at this cape, where he found it breeding among the cactus plants in large numbers. He mentions that as early as the date of his arrival at the place, April 4, he found them already with full-fledged young, and states that they continued to breed until the middle of July. He was of the impression that the eggs of this species more nearly resemble those of the common Mocking-Bird than any others of this genus. The aggravatingly brief notes that accompanied his collections show that the general position of the nest of this species was on low trees, shrubs, and most usually, cactus plants, and in no instance at a greater elevation from the ground than four feet. Their nests were flat structures, having only a very slight depression in or near their centre. They were about 5 inches in diameter, and were very little more than a mere platform.