THRYOTHORUS. 123 



a. Wings considerably longer than tail ; 



bill shorter than tarsus . . . galbraithi. 



8. Wings little longer than tail ; bill 



longer than tarsus .... longirostrisA 

 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 . . . schotlii. 



The following is the more natural arrangement of the species just 

 mentioned, as based upon their peculiarities of form : — ■ 



Thryophilus r nifalhus, poUopleuraj sinaloa, modestus, alhipectus, galbraitkif 



strtolutus, longirostriSf castaneus, nigricapillus, schottil. 

 Fheugopedius : fasciato-ventrls, pleurostictus 1 macullpectus, rutllus, fellx, 



curat/a, iiielailos. 

 Thryothorus : ladovicianus, berlandleri, petenicus. 

 Thryomanes : bewlchil, spllurus, leucogaster. 



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

 tborus, and Telmatodytes, sjaiopses 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, Sclatee, Ibis, 1860, 30 CGuatemala). — Ib. 

 Catal. 18ol, 21, no. 136. See page 121 (" Gulf of Nicoya," Salvin in letter). 



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

 between Puebla and City of Mexico). (How nH&T petenicus and alhinuchaf) 



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

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



a. Thryothortjs. 



Tliryotliorus ludoviciaiius. 



Sghia ludoviciana, Lath. Ind. Orn. II, 1790, 548. — Trogloi'ytes ludo- 

 vlcianus, Light. Verz. 1823, 35 ; also of Bonaparte and Audubon. — 

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

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

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



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



