BIRDS OP NORTH AND MIDDLE AMERICA. 415 



middle toe, 18.29-20.32(19.56); hind claw, 12.19-11.73 (13.21); length 

 of white patch on outer tail-feather, 29.21-38.10 (33.78).' 



Adtdt female. — Similar to that of P, m. arcticus, but grayer, or less 

 brown, above, the back without distinct dusky streaks or spots; bill 

 and feet larger; length (four skins), 187.96-197.87 (192.79); wing, 

 81.28-87.63 (84.58); tail, 86.36-99.06 (93.47); exposed oulmen, 13.21- 

 14.99 (13.97); tarsus, 27.18-28.45 (27.94); middle toe, 18.03-20.83 

 (19.30); hind claw, 11.43-13.97 (12.70); length of white patch on lat- 

 eral tail-feather, 25.40-35.56 (30.48).'' 



Mountain districts of southern Lower California. 



Pipilo maculatus megalonyx (not Pipilo megalonyx Baird) Belding, Proc. TJ. S. 

 Nat. Mus., V, 1883, 549 (Miraflores, Lower California); vi, 1883, 348 (Vic- 

 toria Mts., Lower California). 



Pipilo megalonyx Salvin and Godman, Biol. Centr.-Am., Aves, i, 1886, 409, part 

 (Lower California). 



Pipilo maculatus magnirostris Beewster, Auk, viii, Apr. (pub. Feb. 17), 1891, 146 

 (Sierra de la Laguna, Lower California; coll. W. Brewster). 



PIPILO MACULATUS MEGALONYX (Baird). 

 SPURRED TOWHEE. 



Similar to P. m. arctieus but tail, tarsi, and hind claw longer, bill 

 larger, and coloration darker; white terminal patches of lateral tail- 

 feathers smaller; adult male with general color above wholly black 

 (the rump more or less grayish), white wing-bands narrower, white 

 scapular markings usually edged more or less (at least terminally) 

 with black,' and color of sides and flanks deeper cinnamon-rufous; 

 adult female darker than that of P. ni. arcticus, the throat and chest 

 dark sepia brown to clove brown (instead of hair brown or broccpli 

 brown), upper parts decidedlj^ darker brown, with dusky streaks on 

 back less conspicuous, and white tail-patches much smaller; young 

 similar to that of P. m. m'cticus, but darker. 



A&idt male— Length, (skins), 180.85-213.11 (199.14); wing, 83.57- 

 92.71 (86.11); tail, 90.17-111.51(100.33); exposed culmen, 12.19-14.73 

 (13.46); depth of bill at base, 9.65-11.18 (10.41); tarsus, 26.42-29.21 

 (27.69); middle toe, 17.78-21.59 (19:30); hind claw, 10.16-16.24(12.19); 

 white on lateral tail-feather, 22.10-39.62 (28.96).* 



AcImU female.— Langt^i (skins), 180.85-205.49 (192.53); wing, 79.50- 

 88.39 (83.82); tail, 86.87-105.66 (96.01); exposed culmen, 12.45-14.99 

 (13.72); depth of bill at base, 9.40-10.92 (10.16); tarsus, 25.91-28.19 



^ Nineteen specimens. 

 ^ Fourteen specimens. 



'These black edgings usually worn off in summer plumage, but almost always pres- 

 ent in winter. 

 * Fifty specimens. 



