SCLEETJRUS. 167 



considers *S'. canigularis to be inseparable from S. albogularis ^ ; but Mr. Kidgway 

 adheres to his first statement as to their distinctness ^ and summarizes their differences 

 as follows : — 



" Underparts dull greyish olivCj becoming tawny olive on chest ; back and 

 scapulars bistre-brown tinged with olive ; lower half of throat dull light 

 grey ; upper half, including chin, dull white S. albogularis. 



" Underparts dark slaty, tinged on some feathers with bright mummy-brown, 

 the chest deep barnt-nmber brown > lower haW of throat deep greyish ; 

 upper half, including chin, paler, but scarcely approaching white ; back and 

 scapulars deep vandyke-brown S. canigularis.'- 



The type of S. canigvZaris is, we believe, unique, and examples of ^S'. albogularis 

 are scarce, so that additional specimens of both are required to decide the status of the 

 two birds. In the meantime we follow Mr. Eidgway in keeping them separate. 



2. Sclerurus mexicanus, 



Sclerurus mexicanus, Scl. P. Z. S. 1856, p. 290"; 1859, p. 365 ' ; 1864, p. 175 ^ Cat. Birds Brit. 



Mus. XV. p. 115*; Scl. & Salv. Ibis, 1860, p. 35'; Salv. Ibis, 1861, p. 143'; P. Z. S. 



1867,. p. 143'; 1870, p. 191 '; Lawr. Ann. Lye. N. Y. vii. p. 465'; Sumichrast, Mem. 



Bost. Soc. N. H. i. p. 555"; La Nat. v. p. 247"; Sanchez, An. Mus. Nac. Mex. i. 



p. 97 "; Ridgw. Pr. U. S. Nat. Mus. xii..p. 25 ". 

 Sclerurus guaiemalensis, Lawr. Ann. Lye. N. Y. viii. p. 4 ". 



Supra bmnneus, pileo vix obsouriore, uropygio castaneo, cauda nigricanti-fusea : subtus gula et pectore 

 castaneis iHa pallidiore ; abdomine toto et tectricibus subcaudalibus dorso fere concoloribus, tecfricibus sub- 

 alaribus rufis: rostro et pedibus' saturate corylims, mandibiila infra palEda. Long, tota 6-0, ala; 3'1, 

 caudffi rectr. med. 2-2, rectr. lat. 1-6, rostri a rictu 1-15, tarsi 0-85. (Descr. exempl. ex Eaxche, 

 Guatemala. Mus. nostr.) 



Hab. Mexico ( White ^), Vera Cruz {Sanchez i^), Jalapa [de Oca ^, F. Ferrari-Perez), 

 Cordova {Salle ^), Hot region of Vera Cruz i**, Orizaba i^, and Potrero ^^ {Sumi- 

 chrast), Mirador {Sartorius ^^) ; Guatemala, Coban s, Raxche ^, Savana Grande, 

 and Volcan de Agua above San Biego {0. S. & F. D. G.) ; Panama, Calovevora ^, 

 Santiago de Veraguas '', Cordillera de Tole '^ {Arce), Lion Hill {M'Leannan ^^). — 

 Colombia and Amazons Valley ; Bahia * ^^. 



Sclerurus mewicanns was discovered by Salle near Cordova, in the Mexican State of 

 Vera Cruz, and was described by Mr. Sclater in 1856 ^. It has subsequently been met 

 with in other parts of the same State, where,, Sumichrast tells us ^^ it chiefly inhabits 

 the hot region, but ascends the mountams to a height of upwards of 4000 feet above 

 the sea. It is absent from Western Mexico, but in Guatemala it occurs in sparing 

 numbers in the heavily forested districts on both sides of the main mountain-chain. 

 Its home is in virgin forest, where it lives amongst the undergrowth. 



Though no specimens are recorded as having been obtained between Guatemala and 



