490 TROGONID. 
of this species is the island of San Lucas in the Gulf of Nicoya, where Don A. Alfaro 
and Mr. Cherrie met with it®. | 
T. elegans most resembles T. ambiguus, but may readily be distinguished in the 
adult dress by the more distinct banding of the outer tail-feathers and the coarser 
freckling of the wing-coverts. 7’. ambiguus, as will be seen below, has a much more 
northern range, and the two birds are not found together so far as we know. 
8. Trogon ambiguus. 
Trogon ambiguus, Gould, P. Z. 8.1835, p. 30°; Mon. Trog. t. 4°; ed. 2, t.8 °; Sel. P. Z. S. 1859, 
p. 887‘; Finsch, Abh. naturw. Ver. zu Bremen, 1870, p. 326°; Grayson, Pr. Bost. Soc. 
N. H. xiv. p. 272°; Lawr. Mem. Bost. Soc. N. H. ii. p. 2907; Sumichr. La Nat. v. p. 239°; 
Ferrari-Perez, Pr. U.S. Nat. Mus. ix. p. 161°; Ridgw. Pr. U.S. Nat. Mus. x. p. 147°; 
Grant, Cat. Birds Brit. Mus. xvii. p. 451”. 
Trogon mexicanus, Baird, U. S. Bound. Surv. Birds, p. 5, t. 2 (nec Swains.) ”. 
? Trogon puella, Dugés, La Nat. i. p. 139”. 
T. eleganti similis, sed capite summo fere toto nigro, caude rectricibus tribus utrinque externis in dimidio distali 
albis minute nigro punctatis (nec nigro fasciatis), plaga terminali quadrata tantum pure alba dignoscendus. 
2 rectricibus caude externis quoque punctatis nec striatis distinguenda. (Descr. maris et femine ex Santiago 
Territorio de Tepic, Mexico. Mus. nostr.) 
Juv. Supra brunneus, secundariis alarum tectricibus mediis et minoribus maculis rotundis conspicuis subapi- 
calibus cervinis ornatis, gutture brunneo, abdomine albido, fusco indistincte fasciato. 
Hab. Norta America, Arizona !°—Mexico}, Ysleta, Sierra de Alamos (W. Lloyd), 
Mazatlan (Grayson ®"), Presidio de Mazatlan (Forrer), Tres Marias Is. (Grayson? ° 4, 
Forrer), Tepic, Santiago, San Blas, Sierra Madre de Jalisco, Sierra de Valparaiso, 
Sierra de Nayarit, Bolafios, Zapotlan (W. B. Richardson), Beltran (W. Lloyd), 
Volcan de Colima (W. B. R.), Boquillo in Nuevo Leon (Couch }*), Rio Camacho, 
Villa Grande, Hacienda de la Cruz in Nuevo Leon (Ff. B. Armstrong), Tamaulipas, 
Sierra Madre above Ciudad Victoria, Soto La Marina, Tantina, 'l'ampico, Sierra de 
San Luis Potosi (W. B. Richardson), Alpine region of Orizaba (Sumichrast *), 
Coajimalpa in the Valley of Mexico, Chietla® and Chachapa in Puebla (ferrari- 
Perez), Amula and Omilteme in Guerrero (Mrs. H. H. Smith), Talea (Boucard *), 
Xacautepec (Deppe), Oaxaca (Fenochio), Juchatengo (M. Trujillo). 
Gould described this species in 18351, defining its differences from 7. elegans as 
consisting of the outer rectrices being obscurely and finely dotted, instead of being 
marked with strong well-defined bars. In his ‘ Monograph of the Trogonide’ he further 
drew attention to the finer freckling of the wing-coverts and the deeper bronze colour 
of the upper surface, particularly of the central rectrices. Many specimens have 
reached us, and these characteristic features of 7. ambiguus have been abundantly 
confirmed. 
The range of this species seems quite distinct from that of 7. elegans, and is much 
more northerly, extending on both sides of the Mexican highlands to the State of 
