[116] Selasphorus (platycercus, var. ?) flammula (Salv.). Selasphorus flammula, Salvin, P. Z. S. 1864 (Costa Rica). (Described above from specimen in Mr. Lawrence’s collection.)
[117] Selasphorus (rufus var. ?) scintilla (Gould). Selasphorus scintilla, Gould, P. Z. S. 1850, 162, Monog. Troch. III, pl. cxxxviii. The foregoing species are so similar in all essential respects to the northern S. platycercus and S. rufus, that it is exceedingly probable that they are merely the southern forms of those species. Both differ in exactly the same respects from their northern representatives, namely, in smaller size and less burnished throat, and to a very slight degree only in form. The only specimen of the S. flammula that we have examined is a badly shot male in Mr. Lawrence’s collection; what appears to be the outer primary in this specimen is not attenuated at the tip, which is curved inward, instead of acutely attenuated and turned outward as in platycercus; the wings are badly cut with shot, however, and the first primary may be wanting.
[118] Heliopædica melanotis, (Swains.) Gould, Monog. Troch. II, pl. lxiv. Trochilus melanotus, Swains. Phil. Mag. 1827, 441. Trochilus leucotis, Vieill. Ornismyia arsenni, Less. Hab. Mexico and Guatemala.
[119] Am. Naturalist, 1869-70.
[120] Geococcyx affinis, Hartlaub, Rev. Zoöl. 1844, 215.—Bonap. 97.—Scl. P. Z. S. 1858, 305.—Sclater & Salvin, Ibis, 1859, 134.—Sclater, Catal. 1862, 325. Geococcyx velox, Karw. Bonap. 97.
[121] Coccygus melanocoryphus, Vieillot, Nouv. Dict. VIII, 271.—Sclater, Catal. 1862, 323.—Ib. P. Z. S. 1864, 122.
[122] Crotophaga major, Linn. Syst. Nat. I, 363.—Max. Beitr. IV, 319.—Scl. Cat. 1862, 320. C. ani, Vieill. Gal. Ois. II, 35, pl. xliii.
[123] Crotophaga sulcirostris, Swainson, Phil. Mag. 1827, I, 440.—Bonap. Consp. 89.—Scl. P. Z. S. 1856, 309, 1859, pp. 59, 368, 388, et 1860, pp. 285, 297.—Ib. Catal. 1862, 320. C. casasi, Less. Voy. Coq. Zoöl. I, pl. ii, 619, et Cent. Zoöl. pl. ix.
[124] Conspectus avium picinarum. Stockholm, 1866.
[125] A character common to all the members of the genus, and distinguishing them from the species of every other; this peculiar form of the middle tail-feathers is caused principally by a folding of the webs downward, almost against each other. The under surfaces of the shafts have a very deep groove their whole length, which is seen in no other genus.