{'■) Tu/ffus fimaurochalixu^ Cab. 



Spec, ji, ij. Mapiri and Buganti (Buckle\}. 



No. >i is yonng. Imt specimen // a fnlly adult bird. It Las a yellow bill, 

 and is nothing else than a very worn example of T. amawoclialinus. Count 

 Berlepsch has a large series of beantiliil skins from various places in Eastern 

 Bolivia whicli are in no way different from the Brazilian ones. 



4. Troglodytes musculus clarus Berl. ik. Hart. 



Triiriltifli/lcs iiiuxniliis r!nrn)< Berlepsch & II:utcit, Xur. Zo-//. ix. (1902) p. 8 (typ. ex Barlica Grove, 



Brit. Ouiana). 

 T. nifuliis (nee Cabaiiis !) Chapman, BM. Amer. Mux, vi. (1894) p. 2,S (Trinidad). 



1 S ad. from Caparo, April, agreeing with the pale form whicii inhabits 

 British Guiana, Cayenne, Surinam. Cumami, and the Orinoco region. 



T. m. tobn(/ciii<i» Lawr.* from the island of Tobago, however, is quite distinct, 

 having the lower surface pure white, only the sides and under tail-coverts being 

 washed with isabelline-rufous. The differences have been well pointed out by 

 Comte de Dalmas.f It has also much longer wings and a rather longer tail. 



In T. m. clurus the whole lower surface is pale isabelliue-rufous, only the 

 fore part of the throat and the middle of the abdomen inclining to creamy-whitish. 



5. Thryothorus rutilus Vieill. 



Thiiiolliunis nililiis Vieillot, Xoiu: Ui.i. xxxiv. (181'.i) p. :ib (" AmiTique septentrionale " — errore ! 

 we substitute Trinidad as the typical habitat). 



Sixteen specimens of both sexes from Chaguaramas (.January ), Caparo (April), 

 Lavantille (March), Valencia (March), Pointe Gourde (January), and Seelet (April). 

 They agree with a large series from Tobago, Cumana, and Ejido (near Jlerida), 

 in having the whole nndersurfaee strongly tinged with rufous except the middle 

 line of breast and belly, which is white. In some specimens, however, this white 

 8trij)e is almost wanting, and they come nearer to T. i-Ktilus hijijenjthras from 

 Costa Ilica and Panama, but the latter form is still recognisable by the decidedly 

 lighter, more orange-rufous tint of the lower parts. 



7". riitihi.-i fii/pospoilins Salv. k Godm., from Bogota, has .only the chest 

 bright rufous, the rest of the lower jiarts being dirty gre\ ish with a Ijrownish 

 wash on tlie flanks. 



C. Compsothlypis pitiayuini ( Vieill.). 



Sijhiii intiiniiiiiii Vieillot, Nuno. Dirt. xi. (1817) p. 276 (Paraguay — ex A/.ara, No. 109). 

 Comiisiilhli/jiix jiilitiijiniii Chapman, Bull. Amu: Mas. vi. (1894) p. 24 (Trinidad aud Monos Ibluud). 



i S 6 from Chagnaramas, January ; h <S <? I'rom Pointe Gourde, January ; aud 

 1 (? ad. from Caparo, Ai)ril. 



These specimens are generally richer coloured than typical Paraguay skins. 



~. Dendroica aestiva (Gm.). 



iloidciUa 'ifMii-a Gmulin, SiiM. Xal. 1. ii. (1788) p. 996 (Cayenne and Canada : the latter locality 

 accepted as the typical habitat). 



I c? ad. and 1 ? from Laventille, 1',). iii., i). xi. ; 1 ? (Jhagnaramas, ]. i. 



* Tn'ijhilifUg iohatjfiigis Lawrence, Auk v. (ISss) p. iiij (Tobago), 

 t Mem. Soe. Zool. France, xiii. (1900) p. 133. 



