Wings and tail, blackish brown, every feather having paler edgings. Abdomen and inferior tail-coverts, white, every feather having a longitudinal stripe of brown. Bill, pale yellowish brown, lighter on the lower mandible. Female. Without red on any part of the plumage. Body above, dark brownish, every feather having a longitudinal central stripe of a darker shade of the same color, and edged with lighter inclining to cinereous. Body beneath, sordid white, longitudinally dashed with brown. Young Male. Much resembling the female, but with the red color appearing on the front at the base of the bill, on the neck and rump. Hab. New Mexico and California. Spec. in Mus. Acad. Philada., and Nat. Coll. Washington. Obs. This bird bears considerable resemblance to _Carpodacus purpureus_, but is smaller, and has occasionally been mistaken for _Carpodacus frontalis_. The latter is a distinct and very handsome Western American species, the young of which only has been figured, but of which adult specimens have been brought home by Mr. Bell and others. It is possible that the present is the bird alluded to by Swainson as _Fringilla purpurea?_ in Fauna Boreali Americana, II. p. 264, and by Sir William Jardine in his edition of Wilson’s American Ornithology, I. p. 121, (London and Edinburgh, 1832, 3 vols. octavo). The _Fringilla hæmorrhoa_, Wagler Isis, XXIV. p. 525, appears to be too large for this bird and more like the common _C. purpureus_. PARUS SEPTENTRIONALIS.—Harris. The Long-tailed Chickadee. PLATE XIV.—Male Adult. The form and general appearance of this little bird resemble those of its congeners, the Black-capped Chickadee (_P. atricapillus_) and the Carolina Chickadee (_P. carolinensis_). It is, however, larger than either of those species, and presents other characters which not only fully demonstrate it to be entitled to specific distinction, but, very probably, to possess features in its history different in some respects from any of its relatives. Its bill is longer and more strongly developed, indicating perhaps a different race of insects as its food. Its tail is unusually long, and its entire organization stronger and larger than either of the species above mentioned, with the larger of which (_P. atricapillus_), it has erroneously been considered identical by some European authors.