142 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult f,'i,>ah'.— Wing, TS.T4; tail, 59.44-60.i5 (59.94); exposed cul- 

 men, 12.70; depthof bill at base, 11.43-12.45 (11.94); width of mandible 

 at base, 9.40; tarsus, 19.05; middle toe, 13.97-14.73 (14.48).^ 



San Benito Island, Lower California. 



This local insular form is much more nearly related to V. ampltis, of 

 Guadalupe Island, than to C. met'lcanns eleiiicntis or anj' of the con- 

 tinental races of C. ■ine.r/'cam/g, but may at once be distinguished by 

 the different form of the bill, which, viewed from above, shows the 

 edges of the maxilla to be nearly or quite parallel for the basal half 

 (approximatelj^), then almost abruptly contracted to the tip, and also 

 loj the grayer coloration of the upper parts and paler hue of the red 

 or yellow in adult males. The latter apparently never assume the 

 bright red color often seen in adult males of C. amj>Iiis. 



Ciirpudacns mcgregor! AiiTB.ot!!Y, Auk, xiv, Apr., 1897, 165 (San Benito I., Lower 

 California; coll. A. W. Anthony); xv, 1898, 265 (descr. young). — American 

 Oksithologists' Union Committee, Auk, xvi, 1899, 114 (no. 520.1). 



CARPODACUS AMPLUS Ridgway. 

 GTIADAITrPE HOUSE FINCH. 



Similar to C. mexicai-iva hic.ricaiuis, but much larger, the bill espe- 

 ciallj-; coloration darker and browner above, more broadly streaked 

 with dusky beneath; the adult male with red (or yellow) of throat, etc., 

 extended over breast. 



A/Iult male.— Length (skins), 142.24-158.75 (151.89); wing, 80.01- 

 84.33 (81.79); tail, 62.74-66.04 (63.75); exposed culmen, 12.19-13.97 

 (12.95); depth of bill at base, 12.70-13.97 (13.21); width of mandible 

 at base, 9.91-12.19 (10.67); tarsus, 20.07-21.59 (20.57); middle toe, 

 14.99-16.26 (16.00).= 



A<hdf female.— Length (skins), 147.32-158.75 (152.91); wing, 74.17- 

 81.28 (78.49); tail, 59.44-63.50 (61.47); exposed culmen, 13.21-14.22 

 (13.46); depth of bill at base, 12.95-13.72 (13.21); width of mandible at 

 base, 10.16-10.92 (10.41); tarsus, 18.80-20.83 (20.32); middle toe, 

 14.99-17.53 (15.75).=' 



Guadalupe Island, Lower California. 



Occasionally, as in C. nn'.ricanus and its several subspecies, the usual 

 red of the adult male is replaced by dull yellow (saffron or gallstone). 

 The normal red is rather duller than that of C. inexiccnnis vici'ieaiuifi, 

 but is equally restricted and sharply defined, except that of the under 

 surface, which extends over the chest. 



CarpodacuK amplus Ridgway, Bull. U. S. Geol. and Geog. Surv. Terr., ii, no. 2, 

 April 1,1876, 1S7 (Guadalupe Island, Lower California; U.S. Nat. Mus.); 

 Bull. Xutt. Orn. Club, ii, 1877, 60, 61; Norn. X. Am. Bird^-, 1881, no. 171.— 

 Ajieeioan Ornithologists' Union, Check List, 1886, no. 520. — Bbyant, 



' Two specimens. ^ Thirteen specimens. ' Five specimens. 



