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9. Pachysylvia pectoralis (Scl.). 



Hyhplulus pectoralis Sclater, P.Z.S. 1866. p. 321 [" in Brasil. merid. prov. Mattogrosso (et Rio de 

 Janeiro." — errore !) — the type came from (Villa Bella de) Mattogrcsso — coll. Natterer) ; Pelzeln, 

 Ziir Ornith. Brasil. ii. 18G8. p. 70 (Villa Maria, Mattogrosso, Forte do Rio Branco, Rio 

 Amazonas). 



No. 2194. S ad., Rio Aragimya, July 19u0.— Wing SoJ ; tail 48 ; bill 13 mm. 



Agrees well with two examples from Mattogrosso (including the type), but has 

 the chest of a rather deeper yellow and the upper mandible slightly darker. In 

 the pure cinereous colour on the top and sides of the head the three specimens 

 are practically identical. 



Both Dr. Gadow * and Dr. Sclater f regarded this species as the southern 

 representative of " F. thoracica" which was supposed to be a native of Lower 

 Amazonia, Guiana, and Colombia. Messrs. Berlepsch and Hartert % have, how- 

 ever, shown that P. pectoralis is a perfectly distinct species widely distributed 

 all over the great Amazonian subregion from Gniana to the southern tributaries 

 of the Amazons, and that the true P. thoracica of South-east Brazil was not known 

 to either of the above-named authors. Having examined the series in the British, 

 Tring, Berlepsch, and Vienna Museums, I think it useful to give a short rtmmi 

 of the characters and the distribution of the four forms of this group which I 

 am able to recognise. First of all, it must be borne in mind that P. pectoralis is 

 evidently specifically distinct, as in some districts it occnrs together with a repre- 

 sentative of P. thoracica — e.g. in British Guiana with P. t. griseiventris, 



a. P. thoracica thoracica (Temm.). 



Hylophilus Ihoraciciis TemmmcV, Rec. PI. col. livr. 29. tab. 173. fig. i. (1822— "Brasil."— Natterer 

 coll. — Kiu de Janeiro fi.xed as typical locality) ; Pelzeln, Ziir Orniih. Bras. ii. 1868. p. 70 

 (Sapitiba, Rio§) ; Burmeister, Syst. ttbeis. Tli. Bras. iii. 18.^6. p. 110. 



Sylvia thoracica Wied, Beilr. Nalurg. Bras. 3. ii. 1831. p. 717 (Rio Parahyba, Rio de Janeiro). 



Hab. South-eastern Brazil, state of Rio de Janeiro : Sapitiba (Natterer), city 

 of Rio de Janeiro (Natterer, Behn), Parahyba (Wied). 



Adnlt. Forehead and crown dull yellowish olive ; occiput and nape cinereous, 

 sometimes slightly mixed with olive greenisli. Lores whitish, ear-coverts yellowish 

 olive or brownish grey ; cheeks and throat whitish, foreneck, chest, and sides of the 

 belly bright olive-yellow ; middle of breast and abdomen buff. 



■\Ving .57—01 ; tail 55— 6o ; bill 13—14 mm. 



Specimens examined : 



a. Adult, Rio-make. — Mus. H. v. Berlepsch. 



b. " c? " ad., Rio de Janeiro, Feb. 2, 1848.— Prof Behn coll.— Mas. H. v. 



Berlepsch. 



c. Adult, Rio-make, in my collection. 



(i. c? ad., Rio de Janeiro, Feb. 11, 1821.— Natterer coll., Vienna Museum. 



N.B. — Temmiuck's description and plate agree exactly with the above 

 specimens. Cf. the yellowish olive forehead, vertex, and ear-coverts, the cinereous 

 occiput and nape, and the huffish middle of the belly. 



• Cat. Birds Brit. .Mils. viii. p. 307. 

 t Ibis, 18S1. p. 29.1. 

 j Xov. Zool. Lx. 11102. p. 11. 



§ The locality, Mattogrosso, is erroneous, the specimen from that place being the type of U. 

 pecUvralis I 



