650 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



San Nicolas Island, Santa Barbara group, California. 



Salpindes obsoleius (not Troglodytes obsoletus Say) Gbinnell (J.), Pub., i, Pasa- 

 dena Ac. Sci., 1897, 10 (San Nicolas I., California; descr. nest and eggs). 



Salpinctes obsoletus pulverius Grinnell (J.), Auk, xv, July, 1898, 238 (San Nico- 

 las I. , California; type now in coll. U. S. Nat. Mus. ).— Bailey (Florence M. ), 

 Handb. Birds N. U. S., 1902, 443, footnote. 



Salpinctes pulverius Geinnell (J. ) , Pacific Coast Avifauna, no. 3, June 25, 1902, 

 68. 



SALPINCTES OBSOLETUS EXSUL Ridgway. 



SAN BENEDICTO ROOK WREN. 



Similar in coloration to 3. o. obsoletus, but with lateral rectrices 

 more numerously barred with cinnamon-buff (the outermost with one 

 to two distinct buff bands on inner web and three to four on outer) ; 

 wing ayeraging shorter, tail longer, bill and feet larger. 



Adult male.— hQVLg\h (skins), 137.5-14:6 (141.6); wing, 67.5-73(70.9); 

 tail, 53-62(55.7); exposed culmen, 18-19 (18.7); tarsus, 20.5-22.5 (21.2); 

 middle toe, 18. 6-15.5 (14. 5). « 



Adult female. — Length (skin), 144.5; wing, 68; tail, 50; exposed 

 culmen, 18.5; tarsus, 21; middle toe, 13.5.* 



Island of San Benedicto, Revillagigedo group, off northwestern 

 Mexico. 



Salpindes obsoletus Cnot Troglodytes obsoletus Say) Townsend (C. H.), Proc. U. S. 



Nat. Mus., xiii, 1890, 135 (San Benedicto I., u. w. Mexico). — Anthony, Auk, 



XV, 1898, 315 (San Benedicto I.). 

 Salpinctes obsoletus exsul Ridgway, Proc. Biol. Soc. Wash., xvi, Nov. 30, 1903, 169 



(San Benedicto I., n. w. Mexico; coll. U. S. Nat. Mus.). 



SALPINCTES OBSOLETUS GUADELOUPENSIS Ridgway. 

 GUADALUPE ROOK WREN. 



Similar to S. o. oisoletios, but decidedly darker, wing and tail shorter, 

 bill longer and stouter, and tarsi longer; young with upper parts much 

 darker and more heavily barred or vermiculated; 



Adult male.— Length (skins), 130-146 (136); wing, 65-68 (67.2); 

 tail, 47.5-53 (50.2); exposed culmen, 19-22.5 (21); tarsus, 20.6-23 (21.8); 

 middle toe, 12.5-14.5 (13.5)." 



Adult female.— Length (skins), 123-137 (130); wing, 63.6-68(66.1); 

 tail, 45.5-53 (48.6); exposed culmen, 19-22.5 (20.5); tarsus, 21-22 (21.3); 

 middle toe, 12.5-14 (13.3).'* 



Guadalupe Island, Lower California. 



Salpinctes obsoletus guadeloupensis Eidqway, Bull. TJ. S. Geol. and Geog. Surv. 



Terr., ii, no. 2, Apr. 1, 1876, 185 (Guadalupe I., Lower California; coll. U. S. 



Nat. Mus.). 

 Salpinctes guadalupensis Ridgway, Bull. Nutt. Orn. Club, ii, July, 1877, 60, 61. 

 Salpinctes obsoletus guadalupensii Ridgway, Proc. U. S. Nat. Mus., iii, Aug. 24, 



1880, 169, 215, 228; Norn. N. Am. Birds, 1881, no. 58a. 



a Four specimens. '' Ten specimens. 



6 One specimen. <i Nine specimens. 



