T. rufiventer, _Licht._ Cat. p. 38. —— _Vieill._ Ency. Meth. p. 639? —— _Spix_, Av. Sp. Nov. tom. 1. p. 70. t. lxviii. —— _D’Orb. & Lafr._ Voy. de l’Amer. Mer. Av. p. 203. Grive rousse et noirâtre, _Azara_, No. 79. Turdus Chochi, _Vieill._ Ency. Meth. p. 639. —— _D’Orb. & Lafr._ Mag. de Zool. 1835. p. 17. T. leucomelas, _Vieill._ Ency. Meth. 644. T. albiventer, _Spix_, Av. Sp. Nov. tom. 1. p. 70. t. lxix. f. 1. m. 2 fem. La grive blanche et noirâtre, _Azara_, No. 80. The white-bellied thrush, described under the three latter synonyms, according to M. D’Orbigny, (p. 203 of the ornithological part of his work), is the female of the _T. rufiventer_. My specimens were obtained at Maldonado and the Rio Negro, which latter place, in 41°, is its most southern limit: Spix found it near Rio de Janeiro in Brazil. It utters a note of alarm very like that of the common English thrush, (_Turdus musicus_). 2. TURDUS FALKLANDICUS. _Quoy et Gaim._ T. Falklandicus, _Quoy et Gaim._ Zool. de l’Uranie, p. 104. —— _Pernetty_, Hist. d’un Voy. aux Iles Malouines, II. p. 20. —— _D’Orb. & Lafr._, Voy. de l’Amer. Mer. Av. p. 202. T. Magellanicus, _King_, Proc. Zool. Soc. (1830) p. 14. —— _D’Orb. & Lafr._ Mag. de Zool. 1835. p. 16. M. D’Orbigny has pointed out that the _Turdus Magellanicus_ of King is only the male bird of _Turdus Falklandicus_. I obtained specimens from the Rio Negro, Falkland Islands, Tierra del Fuego and Chiloe: I believe I saw the same species in the valleys of Northern Chile; I was informed that the thrush there lines its nest with mud, in which respect it follows the habits of species of the northern hemisphere. In the Falkland Islands it chiefly inhabits the more rocky and dryer hills. It haunts also the neighbourhood of the settlement, and very frequently may be seen within old sheds. In this respect, and generally in its habits, it resembles the English thrush (_Turdus musicus_): its cry, however, is different. It is tame, silent, and inquisitive. 1. MIMUS ORPHEUS. _G. R. Gray._ Orpheus Calandria, _D’Orb. & Lafr._ Mag. de Zool. (1835) p. 17.—Voy. de l’Amer. Mer. Av. 206. pl. x. f. 2. Turdus Orpheus, _Spix_. Av. t. 1. pl. 71. Mimus saturninus, _P. Max._ Beitr. p. 658? Orpheus modulator, _Gould_, in Proc. of Zool. Soc. Part IV. (1836) p. 6.