( 270 ) 



Regarding the fcirm of thr present paper I have only to sa}' a few words. 

 In every ease the original description lias heeu ciirefnlly eonsnited, and whenever 

 possible speeimens from the typieal locality have heen compared. Of other 

 literature, I quoted the papers about Natterer's, Layard's, and Wallace's collections 

 from Pard. 



Species recorded lor the first time as occurring in the I'anl district are marked 

 with an asterisk. 



I wish to express my sincere tliauks to Messrs. Rothschild and llartert, 

 who placed this interesting collection in my hands for determination. It is 

 now jireserved in tlic Tring JIuseum. 



1. Troglodytes musculus clarus Berl. & Hart. 



[Troglodytes imisniUis Naumann, I'm/. Dcutsrhl. iii. (182.H) p. 724 table, (Bahia).] 



T. musculus rliirus Berlepscli & Hartert, Xar. Zuol. ix. (1002) p. 8 (Bartica Grove, Brit. Guiana). 



T. Amr7-imna (nee Andubon !) Pucheran, Arch. Mus. Paris vii. (1865) p. 338 (Cayenne — type in 



Paris Museum examined). 

 T./urvns Layard, Ibis, 1873. p. 377 (Pan'i). 



Two ? ?, 25, 2(3. i. 04. Nos. 1943, 1945. " Iris brun." 



They agree with a series from British Guiana, and are very much paler under- 

 neath than typical T. fuusei/lHS from Bahia. I examined the examples collected 

 by Natterer at Forte do Rio Branco and Barra do Rio Negro ; they belong likewise 

 to the pale northern form. 



Mr. Oberholser* published an excellent account of the species of the genns 

 Troglodj/tes, which enlightened us on various questions. But owing to lack of 

 proper material the author has falleu into several errors that require correction. 

 Count Berlepsch and myself, in a joint paper on little-known types of South 

 American birds, f have already shown that T. audax Tsch. refers to the form 

 inhabiting the coast region of Peru, which Mr. Oberholser described as T. m. 

 enochrits {I.e. p. 207). To the same form applies the description of T. m. tnun'nufi 

 Less., and not to 7'. m. tecellatus. T. m. puna Berl. & Stolzm., regarded by Mr. 

 Oberholser as synonymous with the last-named form, has nothing whatever to 

 do with it, but is a pure synonym of T. m. n\c. By some oversight, the Count 

 tells me, the same form has been described twice by him, he having entirely 

 forgotten the publication of the name T. m. rex. 



T. VI. tecellatus Lafr. & Orb. is confined to the coast region of Tacna in 

 Northern Chili, whence Count Berlepsch has a good series. It is, in fact, but 

 the southern representative of T. m. anrlar, and only distinguishable by its more 

 distinct dark barring on the upper side. T. m. rex, on the other hand, is a 

 very distinct subspecies, and ranges from Central and S.E. Peru to East Bolivia 

 and Mattogrosso. T. m. wiedi Berl. is by no means confined to Santa Catharina, 

 but is widely distributed over S.E. Brazil. I have sjiecimens from Southern 

 Minas, Rio S. Panlo, Rio Grande do Snl, and Santa Catharina. T. m. musculus, 

 however, is restricted to Bahia; at least it does not reach farther south, but it 

 may extend into the states of N.E. Brazil. 



• l'roi:\ V. 8. Sat. Mut. xxvii. (li)04);pii. 107-210. 

 t Jmim.f. OruUJi. 1905. p. 1-33. 



