36 . TURDIDZ. 
. . . . . 8. . 12 
specimens. In his later work this separation is not confirmed’; but Mr. Lawrence 
refers Tehuantepec specimens to the long-tailed race, if such it is, under the name 
Mimus polyglottus, var. caudatus. Our Oaxaca specimen, however, has a shorter tail 
than one from Villa Alta and another from Cape San Lucas in our collection ; so that 
the length of the tail cannot be said to be a characteristic of western specimens. 
The well-known habits of this species are fully described in works on North- 
American birds ®. 
2. Mimus gilvus. 
Turdus gilvus, Vieill. Ois. Am. Sept. ii. p. 15, t. 68 bis*. 
Mimus gilvus, Scl. & Salv. Nomencl. Av. Neotr. p. 3’. 
Mimus melanopterus, Lawr. Ann. Lyc. N. Y. v. p. 35, t. 2°. 
Mimus columbianus, Cab. Mus. Hein. 1. p. 82%. 
Mimus gracilis, Cab. Mus. Hein. i. p. 83°; J. f. Orn. 1860, p. 410°; Scl. & Salv. Ibis, 1859, p. 7"; 
Taylor, Ibis, 1860, p. 110°; Owen, Ibis, 1861, p. 60°; Salv. Ibis, 1866, p. 202"; Lawr. 
Ann. Lye. N. Y. ix. pp. 91", 199”; Bull. U. S. Nat. Mus. no. 4, p. 12%; Frantz. J. f. 
Orn. 1869, p. 290”. 
Supra cinereus; superciliis albis; loris nigris; alis nigris albo limbatis, tectricibus alarum et secundariorum 
apicibus albis; speculo alari nullo; subtus albus, pectore paulo cinerascente; cauda nigra; rectricum 
apicibus nisi duarum mediarum albis, rectrice utrinque extima pogonio externo toto et interno dimidio 
apicali albis ; rostro et pedibus nigris. Long. tota 10:0, alee 4:1, caudee 5:0, rostri a rictu 1:0, tarsi 1°25. 
(Descr. maris ex Belize. Mus. nostr.) 
Juv. pectore et hypochondriis fusco maculatis. (Descr. exempl ex Duefas, Guatemala. Mus. nostr.) 
Hab. Mexico, Tehuantepec (Swmichrast *), Merida, Yucatan (Schott *, Gaumer) ; 
British Honpuras, Belize’, Lighthouse and Glover's reefs (0. S.); GUATEMALA, 
Salama, San Gerdénimo®, plain of Zacapa, Upper Motagua valley, Duefias®, Jutiapa 
(0. 8S. & F. D. G.); Honpuras®, Comayagua (Taylor5).—CotomBiat ; VENEZUELA? ; 
GuiaNna!; Lesser ANTILLES. 
The name Turdus gilvuus was bestowed upon a Guiana bird, which was also said to be 
found in the warmer parts of South America!; and Vieillot’s plate of it! fairly represents 
the bird found throughout the northern parts of South America and Central America 
as far north as Guatemala. Several names have since been proposed for this Mimus ; but 
the differences between birds from different localities seem hardly sufficient to justify the 
retention of any of them. The bird found in Venezuela is perhaps the most distinct, 
as it has the wing-coverts more broadly edged with ashy, and tipped more widely with 
the same colour, than usual in Colombian and Guatemalan specimens; but the latter 
are not quite constant in this respect, and we think all ought to bear the same name. 
Thus I. melanopterus*® of Venezuela, M. columbianus* of Colombia, and MW. gracilis ® 
of Honduras all become synonyms of WZ. gilvus. 
Found in the isthmus of Tehuantepec!’ and in Northern Yucatan !? W. giluus spreads 
