84 TEOGLODTTID^. 



Supra obscure brunneus, pileo paulo cinerascentiore, alis caudaque rufescentioribus ; Cauda nigro transfasciata, 

 alls obsolete transfaseiatis ; capitis lateribus albis nigro variegafcis ; superoiliis elongatis, gutture at ventre 

 medio albis ; hypochondriis, ventre imo et crisso rufescentibus ; rostro etpedibus plumbeis. Long, tota 5-2, 

 alee 2-4 caudse 2-2, rostri a riotu 0-9, tarsi 1-1. (Descr. exempl. ex San Jose, Costa Eica. Mus. nostr.) 



Bob. Guatemala, Volcan de Fuego, Dueiias'^, Savana Grande, Escuintlaio ^^^ Eetal- 

 huleu, CobanS [0. 8. & F. J). G.); Hondueas, San Pedro {G. M. Whitely'^); 

 Costa Eica, San Jose, Quebrada Honda {Hoffmann'^), San Jose {v. Frantzius'^ ^), 

 Guaitil {Carmiol% San Mateo {Cooper^); Panama, Bugaba {ArcS% line of 

 railway {M^Leannan ^ ^ ^^). 



Costa Eica furnished Dr. Cabanis with the types of this species, the range of which 

 has since been traced to Guatemala in the north and to Panama in the south. Guate- 

 malan examples agree very closely with the Costa-Eica bird ; but those from the 

 Isthmus are decidedly paler beneath, especially on the flanks, which are hardly tinged 

 with the rufous so conspicuous in the Costa-Eican form — a point already noticed by 

 Prof. Baird ''. Except as regards size, the Panama bird approaches closely to T. zeledoni, 

 the form of T. modestus found in the lowlands of the Atlantic side of the mountains of 

 Costa Eica. 



In Guatemala this Wren inhabits nearly the same districts as T. rufalbus, ranging 

 •from an elevation of 1000 to 5000 or 6000 feet. It is also distributed over a wide 

 tract of country. It is, however, not quite so common a bird as T. rufalbus, nor are 

 its notes so melodious. 



After its first discovery in Central America, by Dr. Hoffmann in Costa Eica and by 

 ourselves almost at the same time in Guatemala, it was several years before T. modestus 

 came into quiet possession of its name. Our Guatemala birds were at first doubtfully 

 referred to Thryothorus felix ^^, and afterwards to T. albipectus ^^ ; and M'Leannan's 

 examples from Panama were put under the name of T. leucotis i^. An examination of 

 all these specimens, in Mr. Lawrence's, Mr. Sclater's, and our own collections, has 

 enabled us to determine that they all belong to T. modestus. 



4. Thryophilus zeledoni. 



ThryopMlus zeledoni, Ridgw. Pr. U.S. Nat. Mus. i. p. 252 ' (ex Lawrence, MS.). 



T. modesto similis sed major, colore omnino grisescentiore et fasciis caudse nigris latioribus et distinctioribus 

 distinguendus. Long, tota 5-4, ate 2-5, caudse 2-1, rostri a rictu 0-95, tarsi 1-0. (Descr. maris ex 

 Costa Eica. U.S. Nat. Mus. no. 64689.) 



Eab. Costa Eica, lowlands bordering the Atlantic (/. Zeledon^), 



We are indebted to Mr. Eidgway's kindness for the loan of the only specimen of this 

 Wren that has as yet come under our notice. The species is considered by its describer 

 a well marked one, and allied to T. modestus, whose place it would appear to occupy 

 in the low-lying lands bordering the Atlantic coast of Costa Eica, T. modestus being 



