Mr. Swainson on several new groups in Ornithology, 357 



Cauda obtusuy debilis^ cequalis, 

 Pedes graciles ; halluce sublongo. 



Bill moderate, slender, attenuated, straight, notched. Tongue 

 lengthened ? the top acute. Wings moderate, attenuated ; the 

 first and fourth quill equal ; the second and third equal and 

 longest. Tail rounded, obtuse and soft. Feet slender, hind 

 toe rather lengthened. 



Type. Certhia maculata, Wilson, 3. Pi. 19. f. 3. 



To the accurate observations of Wilson we are indebted for 9 

 correct knowledge of this bird, uniting the essential character* 

 of a Creeper^ with the external form of a Sylvia, 



Family TrochilidcB. 



TROCHILUS. 



Rostrum rectissimum, 

 Cauda mediocrisj cequalis^ vel rotunda. 



Types. ] . T, superbus, Shaw. 2. pileatus^ Lath. 3. collaris^ L^ 

 4. 0, M, a double huppe, Temm., PI. col. 18. f. 3. 



Bill very straight. Tail moderate, equal, or rounded, 



CYNANTHUS. 



Rostrum' rectum^ vel sub-arcuatum, 



Cauda longissimUy forjicata. 



Types. 1.] T, colubris, L. 2. macrourus^ L. 3. platurus, Sh, 



4. bifurcatus^ Sw. ined, 5, 0. M, a queue singulaire, Temm., 



PI. col. 18. f. 2. 



Bill straight or very slightly curved. Tail very long, forked, 



PHCETHORNIS. 



Rostrum elongatum, arcuatum, 

 Cauda elongataj gradata vel cuneata. 



Types. 1. T, superciliosus, L, 2. Col, tachete? Temm., PI. col, 

 120. f. 3. 3. T, chrysobronchosy Shaw. 



Bill elongated, arched. Tail lengthened, graduated or cuncated. 



