2SS TrRDID.T;, 



slate-grev ; car-covcrts slightly paler; -wing-coverts and quills brown 

 on inside web, and russet-brown on outside web ; tail russet-brown. 

 General colour of the underparts, including the axillaries and under 

 wing-coverts, pale slate-grey, slightly paler on the chin and throat, 

 and shading into pure white on the centre of the belly ; under 

 tail-coverts butf ; inner margin of quills ]iale brown. Bill yellow. 

 Wings with the fourth, fifth, and sixth pi'iniaries nearly equal and 

 longest, second primary equal to the eleventh or twelfth, bastard 

 primary 1"1 to 0-95 inch, about half the length of the second. Legs, 

 feet, aiid claws yellow. Length of wing 3-2 to 3-0 inches, tail 2-51 

 to 2-41, culmen"{>72 to 0-G9, tarsus 1-28 to 1-25. 



The female is said not to differ from the male. Birds of the year 

 and yoniui in firxt phimage appear to be unknown. 



The Antio(piian Thrnsh-Ivobin has only been obtained from the 

 forest highlands of Antioquia, a province of Colombia. 



[Catharus melpomene and Catharus aurantiirostris.] 



These two forms are very distinct and inhabit different localities, 

 but appear to mo to be connected together by an intermediate form, 

 from an intermediate locality, which is equally entitled to specific 

 rank. 



6. Catharus melpomene. 



Tardus melpomene, Cab. Mus. Hein. i. p. 5 (1850) ; LicM. Nomencl. 



Ac. p. 25 (1854) ; Gray, Hand-l. B. i. p. 259. no. 3775 (18G9). 

 Catharus aurantiirostris, Hartl. apud Sc/ater, P. Z. S. 1856, p. 294. 

 Catharus melpomene {Cab.), Sclater, I'.Z.S. 1858, p. 97; Sdat. 8f 



8ah. Ibis, 1859, p. 6 ; Sclater, P. Z. S. 1859, pp. 323, 302, 370 ; 



Cab. Journ. Orn. 1860, p. 322 ; Sclat. 4- Salv. Ibis, 1860, p. 29 ; 



Baird, Rev. Am. B. p. 7 (1864) ; Lawr. Ann. Lye. N. Y. ix. p. 90 



(1868) ; Samic/irasf, Mem. Bost. Soc. N. H. i. p. 542 (1869) ; 



Fruntz. Journ. Orn. 1869, p. 289; Sclat. Sf Salv. Nomencl. Av. 



Neotr. p. 1 (1873) ; Sah. Sf Godm. Biol. Centr.-Amer. Zuol., Aves, 



i. p. 2 (1879). 



In the adidt male the general colour of the ujjper parts is russet- 

 brown, approaching coffee-brown on the head, and shading into 

 rusty brown on the ujiper tail-coverts ; lores dull slate-grey ; ear- 

 coverts russet-brown ; wing-coverts and quills brown on inside 

 web, and rich rusty brown on outside web ; tail-feathers russet- 

 brown, margined on the outside webs with rusty brown. General 

 colour of the underparts, including the axillaries, pale slate-grey, 

 slightly paler on the chin and throat, and shading into ptire white on 

 the centre of the belly ; under tail-coverts suffused with russet- 

 brown ; under wing-coverts russet-brown ; inner margin of quills 

 pale chestnut^brown. Bill yellow. AVings with the fourth, fifth, 

 and sixth primaries nearly equal and longest, second primary equal 

 to the tenth or eleventh, bastard primary 1-1 to 0-95 inch, about 

 half the length of the second. Legs, feet, and claws yellow. Length 

 of wing 3-1 to 3-0 inches, tail 2-G6 to 2-5, culmen 0-72 to 0-61, tarsus 

 1-27 to 1-2. 



