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Show 1871.] ON N E O T R O P I C A L LARID_E. 569 Rogers on the coast of Southern Brazil offer no differences on comparison ; and we are therefore induced to follow Prof. Schlegel in uniting S. elegans to S. galericulata of Lichtenstein, obtained from the latter locality. It may be observed that Lichtenstein's description of S. galericulata is nearly as well applicable to S. maxima; but as Prof. Schlegel has had the advantage of examining one of Lichtenstein's typical specimens, we cannot doubt that he is correct in making it identical with S. elegans oi Gambel (S. maxima being ==S. regia, Gambel). Head of Sterna galericulata. (reduced one-third). On reading Messrs. Philippi and Landbeck's description of their Sterna comata, we find it in every way applicable to the present species, which might be naturally expected to extend down the western coast, as it does down the eastern coast of South America. As already mentioned, the chief peculiarity of this species is its long, slender, slightly incurved bill. 3. STERNA CANTIACA. Sterna cantiaca, Gm. S. N. i. p. 606 ; Schlegel, Mus. des P.-B. S ter nee, p. 5. Sterna acuflavida, Cabot, Proc. Bost. Soc. N. H. iii. 257; Baird, B. N. A. 860. Thalasseus acuflavidus, Coues, Pr. Acad. Phil. 1862, p. 540, et Ibis, 1864, p. 389; Salvin, Ibis, 1866, p. 198; Gundl. Rep. F. N. i. p. 392. Hab. Coast of Cuba (Gundlach); Atlantic coast of British Honduras, and Pacific coast of Guatemala (Salvin). W e fail to appreciate the distinctions attempted to be drawn between this species and its European representative. Dr. Coues has ably discussed the subject, and has succeeded in reducing the differences between them to a minimum which is too small to warrant specific separation. This is a northern species, and only appears to occur in the northern part of the Neotropical region. Salvin found it breeding on the coast of Belize in the month of May. 4. STERNA FORSTERI. Sterna hirundo, Sw. et Rich. F. 13.-A. ii. p. 412. Sterna forsteri, Nutt. Man. ii. 274 (note); Baird, B. N. A. 862 |