494 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Tdmnlodiites palustris Ridgway, Am. Nat., vii, 1873, 200, in text (Richland Co., 

 Illinois); Nom. N. Am. Birds, 1881, no. 67, part.— Coues, Check List, 1873, 

 no. 51, part; 2d ed., 1882, no. 79, part; Birds N. W., 1874, 35, part; Birds 

 Col. Val., 1878, 178, part; Bull. U. S. Geol. Surv. Terr., iv, 1878, 555 (Chief 

 Mountain Lake, North Dakota).— Merrill (J. C), Proc. U. S. Nat. Mas., i, 

 1878, 122 (Fort Brown, Texas, Dec.).— Roberts and Bexner, Bull. Nutt. Orn. 

 Club, V, 1880, 13 (Grant Co., Minnesota, breeding). — Agersborg, Auk, ii 

 ii, 1885, 278 (s. e. South Dakota, breeding). 



T[elmatodytes] palustris Coues, Key N. Am. Birds, 2d ed., 1884, 279, part. 

 Cistotliorus palustris plesius Oberholser, Auk, xiv, Apr., 1897, 188, part (South 

 Edmonton, Alberta; Fort Brown, Texas). — Chapman, Bull. Am. Mus. N. H., 

 X, 1898, 23 (.Talapa, Vera Cruz). — American Ornithologists' Union Com- 

 mittee, Auk, xvi, 1899, 125, part.— Bangs, Auk, xix, 1902, 352, part ( Jalapa). 



C\_is(othori(s'] j^lohistris] plesius Bailey (Florence M. ), Handb. Birds W. U. S., 

 1902, 451, part. 



Cistolhorus {Telmatodytes) palustris dissa'iptus Bangs, Auk, xix, C)ct., 1902, 352, 

 part (southern Manitoba). 



Telmatodytes palustris iliacus Ridgway, Proc. Biol. Soc. Wash., xvi, Sept. 30, 1903, 

 110 (Wheatland, Knox Co., Indiana; coll. U. S. Nat. Mus.). 



TELMATODYTES PALUSTRIS PLESIUS (Oberholser). 

 WESTERN MARSH WREN. 



Very similar in coloration of upper parts to T. j>. iliacus^ but the 

 brown averaging- paler and decidedl}^ less rufescent; upper tail-coverts 

 usually more or less distinctly barred with dusk}^, and middle rectrices 

 more distincth^ barred; color of flanks, etc., conspicuously different, 

 being pale wood brown, pale Isabella color, or pale broccoli brown 

 instead of bright buffy cinnamon or tawny-buff, the under tail-coverts 

 usually more or less distinctl}^ barred; wing and tail averaging decid- 

 edly longer (especially the tail), culmen averaging slightly shorter. 



Adult M«Ze.— Length (skins), 110-137 (121.3); wing, .50-57 (54); 

 tail, 45-50.5 (46.4); exposed culmen, 13.5-15 (14.2); tarsus, 18.5-21 

 (20.1); middle toe, 11.5-13 (12.2>.« 



Adult female.— LQw^ih (skins), 108-134.5 (114.9); wing, 48.5-57 

 (52); tail, 40.5-49 (44.8); exposed culmen, 13-14.5 (13.5); tarsus, 

 18.5-20.5 (19.5); middle toe, 11-12.5 (11. 8). « 



Rocky Mountain plateau district of United States and British 

 Columbia; north to eastern and central British Columbia (Okonogan; 

 Ashcroft; Ducks; Caribo Road); west to middle Washington and 

 Oregon (east of Cascade range), northeastern California (Fort Crook; 

 Tule Lake, Eagle Lake, etc.); east to Utah and New Mexico (probably 

 also to Colorado, Wyoming, and Montana), accidentally (?) to western 

 Oklahoma (Beaver River, October 10); during migration southward 

 to Cape district of Lower California (Miraflores; San Jose del Cabo), 

 Sonora (Senoyta; Santa Cruz River; San Bernardino River), Sinaloa 

 (Mazatlan), Chihuahua (Lake Polomus; Chuchuichupa), northern 

 Tamaulipas (Nuevo Laredo), and central Texas (San Antonio). 



«Ten specimens. 



