640 Annals of the Carnegie Museum. 



374. Automolus cervinigularis hypophaeus Ridgway. 



Anabates cervinigularis Sclater, P. Z. S., 1856, 288 (Cordova, Mexico [Salle]). 



Automolus cervinigularis Sclater, P. Z. S., 1864, 175; Cat. Birds Brit. Mus., 

 XV, 1890, 91 (Valsa [Carmiol]). — Lawrence, Ann. Lye N. Y., IX, 1868, 106 

 (Pacuare [J. Carmiol], Angostura [F. Carmiol], Caitago [Cooper]). — Frant- 

 zius, Jour, fur Orn., 1869, 304 (Costa Rica). — Zeledon, An. Mus. Nac. de 

 C. R., I, 1887, 113 (Rio Sucio, Jimenez, Cartago (?)). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, II, 1891, 159 (Tucurriqui [Arce], Valsa [Carmiol]). — 

 Richmond, Proc. U. S. Nat. Mus., XVI, 1893, 497 (Rio Frio). 



Automolus cervinigularis hypophceus Ridgway, Proc. Biol. Soc. Wash., XXII, 

 1909, 72 (type from Guayabo, Costa Rica, March 19, 1908 [Francisco Ba" 

 sulto]; coll. U. S. Nat. Mus.). 



U. S. Nat. Museum ; Jimenez (Alfaro), Rio Sucio (Cooper), Tala- 



manca (Dr. Ring). 

 Bangs Collection : Talamanca, Carrillo, La Vijagua (Underwood). 

 Carnegie Museum : Guapiles and Vol can de Turrialba, 2,000 feet 

 (Carriker & Crawford) ; Cuabre, Rio Sicsola, El Hogar, Carrillo, 

 Peralta (Carriker) ; Carrillo and Cariblanco de Sarapiqui (Under- 

 wood). Twenty-one skins. 



This form was separated by Mr. Ridgway from A. c. cervi?tigularis 

 on account of its darker color. 



This is the most abundant species of the family in the Caribbean 

 lowlands and lower slopes, up to about 2,000 feet, to which region 

 it is confined, not being found on the Pacific slope, where it is replaced 

 by the closely allied form, A. pallidigularis exsertus. 



It is a quiet bird, only occasionally uttering a weak chirp. It 

 is sometimes seen alone, but most frequently in the company of 

 various species of ant-thrushes and other species of Dendrocolaptidce. 

 It is fond of the foraging ants, upon which in company with all the 

 ant-thrushes it feeds. 



I took a single nest of this bird on the Rio Sicsola, Sept. 12, 1904. 

 It was placed in the hollowed top of a broken tree-trunk, ten feet 

 from the ground, in the thick forest. The nest was composed of a 

 few leaves and grasses and some fragments of a cast-off snake skin, 

 and contained two eggs, of which one was almost upon the point of 

 hatching, while the other was infertile. They are creamy-white, 

 shaped very much like the eggs of our common Bob-white (short, and 

 pointed at the smaller end), only a little less sharply pointed. 

 Measurements of egg saved : 31 x 24 mm. 



