THRYOTHORUS. 123 
a. Wings considerably longer than tail; 
bill shorter than tarsus a c -  galbraithi. 
8. Wings little longer than tail; bill 
longer than tarsus : longirostris.! 
B. Head black, with white cheek-patch ; rest of upper pat 
deep chestnut. 
a. Throat white, passing into chestnut behind. Sides 
obsoletely banded with black . 5 5 -  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 oateabrnt on flanks and 
anal region. Whole under parts from bill to tail 
banded transversely with black 5 : -  schottit. 
The following is the more natural arrangement of the species just 
mentioned, as based upon their peculiarities of form :— 
Thryophilus: rufalbus, poliopleura, sinaloa, modestus, albipectus, galbraithi, 
striolatus, longirostris, castaneus, nigricapillus, schottit. 
Pheugopedius: /fasciato-ventris, pleurostictus? maculipectus, rutilus, felix, 
coraya, melanos. 
Thryothorus: /udovicianus, berlandieri, petenicus. 
_ Thryomanes: lewickii, spilurus, 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 Troglodytidex I have not had 
the opportunity of examining :— 
Thryothorus pleurostictus, Scuarer, Ibis, 1866, 30 (Guatemala).—Is. 
Catal. 1861, 21, no. 136. See page 121 (“Gulf of Nicoya,” Salvin.in letter). 
Thryothorus murinus, Harriavs, Rev. and Mag. Zool. 1852, 4 (Rio Frio, 
between Puebla and City of Mexico). (How near petenicus and albinucha?) 
Troglodytes albinucha, Canor, Pr. Bost. N. H. Soc. II, 1847, 258 (Yuca- 
tan). Possibly 7. petenicus, and if so, prior to it. 
a. THRYOTHORUS. 
Thryothorus ludovicianus. 
Sylvia ludoviciana, Laru. Ind. Orn. II, 1790, 548. — Troglodytes ludo- 
vicianus, Licut. Verz. 1823, 35 ; also of Bonaparrs and AupuBon.— 
Prince Max. Cab. Jour. VI, 1858, 110.— Thryothorus ludovicianus, 
Bon. List, 1838, etc.—Cas. Mus. Hein. I, 1850, 78.—Bairp, Birds 
N. Am. 1858, 361.—Scrarer, Catal. 1861, 20. 
' See note on dongirostris and its allies, under T. galbraithi, p. 132. 
