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Show 630 MESSRS. SCLATER AND SALVIN [Dec. 10, in a Trinidad collection, as alluded to in his Cat. Am. B. p. 44 (note). H. insularis of Leotaud (Ois. de Trin. p. 186) would appear to be referable to this species, and not to //. insularis, Sclater, although both of them probably occur in that island. 25. CHLOROSPINGUS ALBITEMPORALIS (Lafr.); Sclater, Cat. A. B. p. 89. The Venezuelan skin agrees with a Bolivian skin in Sclater's Collection, and with a specimen from Costa Rica collected by Arce' (cf. Lawrence, Ann. L. N. Y. ix. p. 101). It may be true, as Dr. Cabanis has remarked (J. f. O. 1866, p. 162), that Lafresnaye's description of Tachyphonus albitempora includes the Mexican C. ophthalmicus and the present species. But Lafresnaye gives the habitat of his bird as " Columbie j " so that it seems quite fair to restrict his term to the southern species, which is readily distinguishable from the northern form by its small postocular spot, and the brighter yellow of its breast and sides. W e have carefully compared a series of Mexican and Guatemalan specimens of C. ophthalmicus, but cannot find differences sufficiently constant to distinguish them. Even if this were the case, Bonaparte's term olivaceus (which was founded on a Central-American specimen*) would supersede Dr. Cabanis's proposed new name postocularis. 30. SCLERURUS ALBIGULARIS. A single skin of a species most nearly resembling S. umbretta, but apparently distinguishable by its white throat, smaller size, greyish abdomen, and brighter rufous crissum. It is probably S. albigularis of Swainson's ' Birds of Brazil,' pl. 78, which figure we have never yet succeeded in meeting with. See our remarks, P. Z. S. 1867, p. 574. 34. SITTASOMUS OLIVACEUS, Max. Beitr. iii. p. 1146. After comparing a large number of specimens of this genus together from various parts of America, we have come to the conclusion that there are only two good species, besides S. stictolcemus of Pelzeln (which we are not acquainted with). These are : - 1 . S. erythacus (Licht.), from Southern Brazil; and, 2. S. olivaceus (Max.), which ranges from Southern Brazil into Southern Mexico. The latter, according to this view, includes S. amazonus of Amazonia, S. griseus of Tobago, and S. sylvioides of Southern Mexico and Central America. These two species are very easily distinguishable, S. erythacus being of an ochreous colour beneath, very different from S. olivaceus. 44. GRALLARICULA LORICATA, Sclater, P.Z. S. 1858, p. 284. Grallaria loricata, Scl. P. Z. S. 1857, p. 129. A single skin of this species, originally described by Sclater from Levraud's specimens in the Paris Museum. * Cf. Sclater, P. Z. S. 1856, p. 90. |