308 University of California Publications in Zoology. [Vou.5 
coastal region of California. If the species is represented at 
all in the Humboldt Bay district, it would seem likely to re- 
semble calophonus most nearly. ) 
Thryomanes bewicki catalinae, new subspecies. 
Catalina Island Wren. 
Typr.—Male adult; no. 3277, coll. J. Grinnell; Avalon, Santa 
Catalina Island, California; December 24, 1897; J. Grinnell. 
Diagnostic CHaracters.—Closely similar in color and gen- 
eral size to 7. b. charienturus Oberholser, of the adjacent main- 
land, but averaging darker dorsally (more sepia and not so 
umber brown), and with heavier bill and conspicuously and 
constantly larger feet (longer toes and heavier tarsus) ; differs 
from T. b. leucophrys (Anthony), of San Clemente Island, in 
decidedly darker, less ashy coloration, and in much more heavily 
barred under tail-coverts; differs from 7. b. nesophilus Ober- 
holser, of Santa Cruz Island, in duller, less rufescent, coloration, 
erayer flanks, longer bill and generally larger size. 
MEASUREMENTS OF Typr.—Wing, 54.0; tail, 53.7; culmen, 
15.7; bill from nostril, 11.7; depth of bill at base, 3.3; tarsus, 
21.3; anteroposterior diameter of tarsus one-third its length be- 
low tibio-tarsal joint, 1.8; hind toe with claw, 14.0; middle toe 
with claw, 16.2. 
Rance.—Santa Catalina Island, southern California; ecom- 
mon, permanently resident. 
GENERAL ReMARKS.—The wrens of this group have been dealt 
with in more or less detail by Oberholser (Proc. U. S. National 
Museum, XXI, November, 1898, pp. 421-450) and by Ridgway 
(Birds N. and Mid. Am., III, 1904, pp. 548-569). Both of these 
authors refer to peculiarities in birds from Santa Catalina Isl- 
and and Marin County. But evidently the material at their 
command was not sufficient for the establishment of the distine- 
tiveness of the forms to their satisfaction. 
With the naming of the above two new forms I am able 
clearly to distinguish the following eight geographic races within 
the limits of the state of California, occupying as many separate 
areas of differentiation. 
