Adult male. — Length (skins), 126-135.5 (130.4); wing, 65-69.5 (67.7); tail, 48-52 (49.7); culmen, 18-19.5 (18.7); tarsus, 19-20.5 (19.6); middle toe, 11-13 (11.8).[1]
Adult female. — Length 121-148 (131); wing, 61.5-69 (65.9); tail, 45.5-53.5 (50.7); culmen, 17.5-20.5 (20.1); tarsus, 19.5-20.5 (20.1); middle toe, 11-12.5 (11.7).[1]
Costa Rica (Angostura; Tucurríqui; Jiménez; Volcan de Turrialba; Carrillo; La Hondura; Pacuare; Naranjo de Cartago; Guápiles; El Hogár; Bonilla; La Balsa; Tuis; La Vijágua; Cariblanco de Sarapiquí; El Pozo de Térraba; Pozo del Pitál) and western Panamá (Calobre; Calovévora; Bugaba; Volcan de Chiriquí, 2,000-3,000 feet).
- Thamnistes anabatinus (not of Sclater and Salvia) Lawrence, Ann. Lyc. N. Y., ix, 1868, 107 (Angostura and Tucurríqui, Costa Rica). — Frantzius, Journ. für Orn., 1869, 305 (Costa Rica). — Salvin, Proc. Zool. Soc. Lond., 1870, 194 (Calovévorá and Bugaba, Panamá; crit.). — Zeledón, Anal. Mus. Nac. Costa Rica, i, 1887, 114 (Angostura, Pacuare, and Naranjo, Costa Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 205, part (Costa Rican and Panaman localities and references). — Cherrie, Anal. Inst. Fis.-Geog. Costa Rica, vi, 1893, 19 (Pozo del Pitál, Costa Rica). — Bangs, Proc. New Engl. Zool. Club, iii, 1902, 41 (Volcan de Chiriquí, Panamá, 2,000-3,000 ft.).
- [Thamnistes] anabatinus Sclater and Salvin, Nom. Av. Neotr., 1873, 70, part. — Sharpe, Hand-list, iii, 1901, 17, part.
- Thamnistes anabatinus saturatus Ridgway, Proc. Biol. Soc. Wash., xxi, Oct. 20, 1908, 193 (Bonilla, Costa Rica, 2,600 ft.; coll. U. S. Nat. Mus.). — Carriker, Ann Carnegie Mus., i, 1910, 605 (Costa Rican range; crit.; habits).
Genus ABALIUS Cabanis.
- Abalius[2] Cabanis, Journ. für Orn., ix, July, 1861, 242. (Type, Thamnophilus punctatus Cabanis = T. bridgesi Sclater.)
Medium-sized Formicariidaæ (length about 155 mm.) with tail nearly as long as wing, pileum not crested, the adult male black (under parts of body more gray or slate colored) with small white tips to wing- coverts and lateral rectrices, adult females slate color or olive streaked with whitish.
Bill about as long as head rather stout, moderately compressed, distinctly hooked; exposed culmen about as long as tarsus, distinctly ridged, gently curved from near base to beyond middle, where more
- ↑ 1.0 1.1 Ten specimens, all from Costa Rica. Costa Rican specimens compare in measurements with those from Panamá (Chiriquí, Caribbean slope) as follows:
Locality. Wing. Tail. Culmen. Tarsus. Middle
toe.males. Ten adult males from Costa Rica 67.7 49.7 18.7 19.6 11.8 Two adult males from Panamá (Chiriquí, Caribbean slope) 66 51.2 18 20 12 - ↑ "Von α, privativum und βαλιύς, scheckig, bunt" (Cabanis.)
