THRYOTHORUS. 123 



a. Wings considerably longer than tail ; 



bill shorter than tarsus . . . gaVoraithi. 



B. Wings little longer than tail ; bill 



longer than tarsus .... longirostris.^ 

 B. Head black, with white cheek-patch ; rest of upper part 

 deep chestnut. 



a. Throat white, passing into chestnut behind. Sides 



obsoletely banded with black .... castaneus. 



b. Beneath white, tinged with rufous on abdomen. 



Throat plain ; rest of under parts barred trans- 

 versely with black ...... nigricapillus. 



c. Beneath white, tinged with chestnut on flanks and 



anal region. Whole under parts from bill to tail 



banded transversely with black • . . schottii. 



The following is the more natural arrangement of the species just 

 mentioned, as based upon their peculiarities of form : — 



Thryophilus ; rufalhus, poliopleura;, sinaloa, modestus, alhipectus, galhraithi, 

 striolalus, longirostris, castaneus, nigricapillus, schottii. 



Pheugopedius: fasciato-ventris, pleiirostictus? macidipectus, rutilus, felix, 



coraya, melarXos. 



Thryothorus : ludovicianus, berlandieri, petenicus. 

 Tutiryomanes : bewickii, spilui-us, leucogaster. 



These are followed by the species of Troglodytes, Anorthura, Cisto- 

 thorus, and Telmatodytes, synopses of which will be given 

 further on. 



The following species of the group of Troglodytidse I have not had 

 the opportunity of examining : — 



Thryothorus pleurostictus, Sclater, Ibis, 1860, 30 CGuatemala).— Ib. 

 Catal. 18(31, 21, no. 136. See page 121 (" Gulf of Nicoya," Salviu iu letter). 



Thryothorus murinus, Hartlaub, Rev. and Mag. Zool. 1852, 4 (Rio Frio, 

 between Puebla and City of Mexico). (How nf^ar petenicus and albinucha ?) 



Troglodytes albinucha, Cabot, Pr. Bost. N. H. See. II, 1847, 258 (Yuca- 

 tan). Possibly T. petenicus, and if so, prior to it. 



a. Thryothorus. 



Thryothorus ludovicianus. 



Sylvia ludoviciana. Lath. Ind. Orn. II, 1790, 548. — Troglodytes ludo- 

 vicianus. Light. Verz. 1823, 35 ; also of Bonaparte and Auddbon. — 

 Prince Max. Cab. Jour. VI, 1858, 110. — Thryothorus ludovicianus, 

 Bon. List, 1838, etc.— Cab. Mus. Hein. I, 1850, 78.— Baird, Birds 

 N. Am. 1858, 361.— Sclater, Catal. 1861, 20. 



' See note on longirostris and its allies, under T. galhraithi, p. 132. 



