CISTOTHORUS. 



147 



in stellaris), and the rump and tail coverts are plain, or with very 

 obsolete markings. 



The characters derived from my present materials are as follows, 

 and will probably be substantiated by additional specimens : — 



C. stellaris.— White dorsal streaks extending to the rump, which is con- 

 spicuously banded with brown, and somewhat spotted with whitish. 

 Beneath, including lining of wings, light cinnamon-brown ; throat and 

 belly paler, almost white ; sides and crissum very obsoletely barred 

 with darker, and faintly spotted with whitish. Feathers of jugulum like 

 sides, but with the color obscured by the paler edges. Tarsus, .65 long. 



C. elegans. — Streaks on back confined to interscapular region ; rump and 

 upper tail coverts almost plain reddish-brown. Beneath much paler than 

 in stellaris, without any appreciable indication of bars or spots on sides 

 and crissum, or of the fulvous of the jugular feathers. Inside of wings 

 snowy white. Tarsus, .72 long. 



(No. 29,207, Mexico.) Total length, 4.20 ; wing, 1.72 ; tail, 1.70 ; graduation, 

 .60 ; exposed portion of 1st primary, .65, of 2d, 1.09, of longest (measured from 

 exposed base of 1st primary), 1.35 ; length of bill from forehead, .55, from 

 nostril, .31; tarsus, .72; middle toe and claw, .62 ; hind toe and claw, .54; 

 claw alone, .27. 



(30,689.) Type. 



b. Telmatodytes. 



Cistotliorug palustris. 



Certhia palustris, Wilson, Am. Orn. II, 1810, 58, pi. xii, fig. 4 (Penna). 

 — Troglodytes palustris, Bon. Obs. Wils. 1824, no. 66. — AuD. Om. 

 Biog. I, 1831, 500, pi. 100.— Ib. Birds Am. II, 1841, 135, pi. 123.— 

 Keinhardt, Ibis, 1861,5 (Godthaab, Greenland). — Thryothorus pa- 

 lustris, NcTT. Man. I, 1832, 439. — Cistothorus (Telmatodytes) palus- 

 tris, Baird, Birds N. Am. 1858, 364.— Sclater, Catal. 1861, 22. 



Thryothorus arundinaceus, Vieillot, Nouv. Diet. XXXIV, 1819, 58 (not 

 Trog. arundinaceus, Vieillot). — Thryothorus arundinaceus, Bon. 

 Consp. 1850, 220. — Telmatodytes arundinaceus, Cab. Mus. Hein. 

 1850, 78. 



Hab. Eastern United States, from the Missouri River; Greenland (Rein- 

 hardt) ; Mexico, and Guatemala ? 



(No. 1,456, % .) Total length, 5.00; wing, 2.05 ; tail, 1.95 ; graduation, .62 ; 

 exposed portion of 1st primary, .78, of 2d, 1.22, of longest (measured from 

 exposed base of 1st primary), 1.50 ; length of bill from forehead, .67, from 



