Ridgway, Proc. Biol. Soc. Wash., xxi, 1908, 192 (geog. range). — Carriker, Ann. Carnegie Mus., vi, 1910, 603 (Caribbean foothills, n. e. Costa Rica; habits).— Ferry, Pub. 146, Field Mus. N. H., orn. ser., i, no. 6, 1910, 271 (Guayabo, Costa Rica).
- Thamnophilus intermedius Ridgway, Proc. U. S. Nat. Mus., x, Aug. 6, 1888, 581 (Truxillo, Honduras; coll. U. S. Nat. Mus.).
THAMNOPHILUS DOLIATUS PACIFICUS Ridgway.
PACIFIC ANTSHRIKE.
Similar to T. d. mexicanus but adult male with under parts decidedly paler (black bars decidedly, sometimes very much, narrower than white interspaces, and black streaks on throat very narrow);[1] adult female not constantly if at all different, but sometimes paler, either above or below.
Adult male. — Length (skins), 141-163 (149); wing, 67-74.5 (70.1); tail, 55-65 (58.4); culmen, 18-20.5 (19.4); tarsus, 25-27.5 (26.1); middle toe, 14.5-16 (15.3).[2]
Adult female. — Length (skins), 130-158 (145); wing, 65.5-72 (68.4); tail, 55-63 (57.8); culmen, 17-19.5 (19.3); tarsus, 24.5-27 (26.3); middle toe, 15-16.5 (15.5).[3]
Pacific slope of Central America, from western Panamá (Divala; Chitra; Davíd; Bugaba; Calovévora), through Costa Rica (Pozo Azúl de Pirrís; Buenos Aires; Boruca; Lagarto; Paso Reál; Puriscál; San Mateo; Bebedero; Coyolár; La Palma de Nicoya; Barranca de Puntarenas; San Carlos; Surubres; Miravalles; San José; Sarchí; Coralillo; Bolsón; El Generál; Boca de Barranca; Escazú?), Nicaragua (Sucuyá; Chinandega; Volcan de Chinandega; 2 leagues south of Lake Manágua; Realejo) and Guatemala (Naranjo; San Jose; Lake Amatitlán) to Chiapas (San Bartolomé).
- (?) Thamnophilus doliatus (not Lanius doliatus Linnæus) Cabanis, Journ. für Orn., 1861, 242 (Costa Rica).
- Thamnophilus doliatus Salvin, Proc. Zool. Soc. Lond., 1867, 144 (David, Panama). — Boucard, Proc. Zool. Soc. Lond., 1878, 60 (San Mateo, Costa Rica). — Nutting, Proc. U. S. Nat. Mus., vi, 1884, 385 (Sucuyá, Nicaragua; habits; notes). — Zeledón, Anal. Mus. Nac. Costa Rica, 1, 1887, 114, part (Pozo Azúl, Costa Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1891, 202, part (Chinandega, Volcan de Chinandega, and Sucuyá, Nicaragua; San José, San Mateo, Sarchí, Bebedero, La Palma de Nicoya, and Pozo Azúl, Costa Rica; Davíd and Bugaba, Panamá). — Cherrie, Expl. Zool. Merid. Costa Rica, 1893, 41 (Lagarto, Boruca, and Buenos Aires, s. w. Costa Rica). — Underwood, Ibis, 1896, 440 (Bebedero, Costa Rica). — Dearborn, Pub. 125, Field Mus. N. H., 1907, 109 (Lake Amatitlán and San José, Guatemala, up to 4,000 ft.). — Bangs, Auk, xxiv, 1907, 296 (Boruca, Paso Reál, Lagarto, and Barranca de Puntarenas, w. Costa Rica).
