( 355 ) 



The type of M. Incolor (from the Peruviau Amazons) agrees in every way with 

 several aihilts from Bogota. The upper parts and the flanks are of the same 

 rnfesccnt brown colour, and there are only a few blackish and whitish bars in 

 the middle of the lower abdomen. 



Thus we have two distinct forms, the range of which is as follows : — 



(ri') M. margiiiatus mai-ffinatus (Scl.). From Eastern Colombia (Bogota coll.) 

 sonth through Eastern Ecuador to N.E. Pern and (ientral Peru, and even to 

 Northern Bolivia (Busby coll. — Amer. Mas. New York) ; east through the Bio 

 Negro region to Para. 



(b) M. marginatiis occidentalis Hellm. Only known from N.W. Ecnador. 



N.B. — M. tacniatus Sal v. (tyj)e ex Balzar, W. Ecuador) belongs to a different 

 section of the genus, having the entire under-surface banded with smoky grey, aud 

 is a very near ally of .]/. fujiiamnlafiis iScl. & Salv. 



4. Thryothorus genibarbis Sw. 

 Cf. Xov. Zool. xii. (190,5) p. 271. 



2 t?c?, 1 ? ad., and 1 young ? from Prata : 9, 17. si., 9. xii. U5. Nos. 92, 94, 

 149, 301. Iris marked as " brown " or as " red." 



5. * Granatellus pelzelni paraensis Eothsch. 



G.p.pnmensis Rothschild, Bull. Brit. Oni. CI. xvi. (April lOOH) p. 81. 



No. 141. (? ad., Prata, 17. xi. 05. "Iris lirown, bill grej'-blue, feet bluish 

 black." Wing .52^1, tail .501, bill lOJ mm. Type of subspecies. 



No. 132. ? ad., Prata, lo. xi. O.'i. "Iris brown, feet and bill grey-blue." 

 Wing .04, fail 53, bill 11 mm. 



The <? of this interesting new form differs from that of 0. p. pelzelni by lacking 

 the silky white stripe which separates the grey flanks from the rosy red middle of 

 the belly, the whole sides of the abdomen being uniform dark grey. On the top 

 of the head the black does not extend over the whole crown, as in the typical form, 

 but is restricted to a well-defined frontal band and a narrow stripe above the eye, 

 while the vertex is slaty bine like the back. There is only a small white spot 

 at the posterior margin of the eye, whereas typical G. p. pelzelni shows a long, 

 broad, white postocular stripe. 



In other respects the Para form does not difi'er. The sides of the head are dee]! 

 black, the throat is white, bordered below by a number of small black sjiots, and 

 tlie breast as well as the middle of the abdomen are boautifnlly rosy red. 



The ? of G. p. paraensis has the sides of the breast strongly washed with grey, 

 which is barely indicated in a good series of ? ? of the typical form. 



It appears that G. p. paraensis has a very limited range, as the specimens 

 collected by Mr. Andre on the Caura Biver, Venezuela, agree with the type of 

 G. p. pelzelni which was obtained by Natterer on the Upper Bio Madeira. 



6. Pachysylvia thoracica semicinerea (Scl. & Salv.) 



[iri/lojihihis ihnniciriiH Temniinck,'/'/. .7,/., livr. -J'.i (Iki;l>) pi. 173^ fig. l {" Bresil"— coll. Natterer. 



Wc substitute liin as iy]i. locality).] 

 llyhipliiliis scmicincrrii.i Sclater & Salvin, P. Z. S. 18G7. p. 570. pi. xxx. fig. 2 (ParA) : Layard, Ihl/: 



161^. p. 377 (Paril). 



Two adult c?(?, 1(5, 17. xii. 05. Nos. 3.54, 307. " Iris white (No. 354), whitish 

 yellow (No. 367)." 



