310 Swartu, Marsh Wrens of California. [huts 
the summer and winter distribution of these three races within 
the State. 
The greater part of the series under consideration is from the 
Museum of Vertebrate Zodlogy, including, besides the State collec- 
tion, the Grinnell, Morcom, and Swarth collections. This, how- 
ever, although by far the most extensive series available from 
any one source, still left much to be desired in the way of adequate 
material from certain regions. The loan of specimens from other 
collections has filled these gaps to some extent. The collections 
in the Los Angeles County Museum of History, Science and Art, 
' were at the writer’s disposal, including the Daggett, Richardson, 
Willett, Lamb and Law collections, which are housed there. To 
the United States National Museum, through Dr. C. W. Richmond, 
Assistant Curator of Birds, the writer is indebted for the loan of 
certain specimens, particularly the type of Baird’s “ Cistothorus 
palustris, var. paludicola.” Other institutions which generously 
responded to requests for the loan of material were the Biological 
Survey of the United States Department of Agriculture, the Uni- 
versity of Oregon, and the Oregon State Fish and Game Commis- 
sion. Messrs. Joseph and John W. Mailliard, A. B. Howell and 
L. E. Wyman also kindly permitted the use of the specimens con- 
tained in their several collections. To each of these imstitutions 
and individuals the writer wishes to express his sense of obligation, 
and his appreciation of the aid afforded. 
Telmatodytes palustris estuarinus, new subspecies. 
Type.— No. 25349, Museum of Vertebrate Zodlogy; adult male; Grizzly 
Island, Solano County, California; April 17, 1915; collected by J. Grinnell; 
original number, 3152. 
Subspecific characters— In coloration @stuarinus is darker than the 
average of paludicola, especially as compared with southern Californian 
examples of the latter. Occasional specimens of paludicola, however, from 
all parts of its range, are quite as dark colored. In dimensions, 7’. p. 
estuarinus differs from T. p. paludicola in its greater size throughout, 
being of about the same dimensions as 7’. p. plesius. From plesius it differs 
in its much darker coloration, 
Specimens examined from the following localities.— California. Solano 
County: Cordelia Slough, 7; Grizzly Island, 3; Suisun, 18. Sonoma 
County: Second Napa Slough, 3. Santa Clara County: Palo Alto, 1. 
