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Show 1870.] DR. O. FINSCH ON THE BIRDS OF TRINIDAD. 585 Jong. al. 7" 6'" 7 0 7 6 8 6 ___ caud. 5" 10'" 5 5 6 0 6 9 culm. 5" 0'" 4 2 4 2 5 9 4 0 tars 23" 22 21 22 - I may be allowed to append some remarks with respect to the synonymy of two Ramphastidee. RAMPHASTOS PISCIVORUS, L. Ramphastos carinatus, Sw.; Scl. Cat. p. 324. From this well-known species are not separable R. brevicarinatus, Gould (Mon. ed. 2, t. 3), and R. approximans, Cab. (Journ. f. Orn. 1862, p. 333), as already stated by Mr. Salvin (P. Z. S. 1867, p. 156). A careful comparison between specimens from Guatemala, Costa Rica, and New Granada has convinced me that Mr. Salvin is quite right, although Mr. Lawrence (Ann. L. N. H. N. Y. ix. p. 129) holds the contrary opinion. Our Guatemalan specimen has the yellow on the jugulum bordered very narrowly with red; in the New-Granada one this red bordering is more defined, and in the Costa-Rican bird still broader. But this is by no means a specific character ; for the figure of Mr. Sturm, from a Mexican specimen, shows the red band still broader than those from Costa Rica. The measurements are also variable. (Guatemala.) (New Granada.) (Costa Rica.) (cS, Mexico, ap. Sturm.) ( 2 > Mexico, ap. Sturm.) RAMPHASTOS AMBIGUUS, SW. ; Scl. Cat. p. 325. Our specimen from New Granada agrees in every respect with the description and beautiful figure by Mr. Sturm (Heftiv. t. I. fig.inf.), taken from a male specimen from Peru (Tschudi). The separation of the New-Granada bird (R. abbreviatus, Cab. Journ. f. Orn. 1862, p. 334) has no grounds in my opinion. The purple-reddish tinge on the breast, noticed as the chief character for R. abbreviatus, is not visible in our specimen, and again occurs in Peruvian specimens, as stated by Mr. Sturm. Lone*, al. caud. culm. tars. 8" 10'" 5" 6'" 6" 0'" 24'" (New Granada.) g 10 - 6 3 - (Peru, ap. Sturm.) Dr. Cabanis gives the length of bill as only a little more than but it may be remembered that in most of the members of the Ramphastidee the length of bill varies considerably, especially with respect to the two sexes and the younger birds. The southern form of R. toco, which Dr. Cabanis named R. albogularis (J. f. Orn. 1862, p. 334), has been declared not specifically different by Von Pelzeln (Orn. Bras. iii. p. 233, note 2). Fam. PSITTACIDEE. 91. CONURUS PERTINAX (L.); Finsch, Mon. i. p. 506. One specimen, in the plumage of C. chrysophrys, Sw., and agree- |