Page:Birds of North and Middle America partV Ridgway.djvu/72

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BULLETIN 50, UNITED STATES NATIONAL MUSEUM.

[Thamnophilus] doliatus Bonaparte, Consp. Av., i, 1850, 197, part. — Sclater and Salvin, Nom. Neotr., 1873, 70, part. — Sharpe, Hand-list, iii, 1901, 15, part.

Thamnophilus doliatus? Salvin, Proc. Zool. Soc. Lond., 1867, 144 (David, Panamá).

Thamnophilus affinis (not of Spix, 1825, Lafresnaye and D'Orbigny, 1837, nor Cabanis and Heine, 1859) Lawrence, Ann. Lyc. N. Y., ix, 1868, 107 (San José, Sarchí, and San Mateo, Costa Rica). — Salvin, Proc. Zool. Soc. Lond., 1870, 194 (Bugaba, Panamá; crit.).

Thamnophilus doliatus affinis Nutting, Proc. U. S. Nat. Mus., v, Sept. 5, 1882, 397 (La Palma de Nicoya, Costa Rica; habits).

Thamnophilus radiatus (not of Vieillot) Salvin, Proc. Zool. Soc. Lond., 1870, 194, (Chitra and Calovévora, Panamá).

Thamnophilus nigricristatus (not of Lawrence) Boucard, Proc. Zool. Soc. Lond., 1878, 60 (San Carlos, Costa Rica).

Thamnophilus doliatus pacificus Ridgway, Proc. Biol. Soc. Wash., xxi, Oct. 20, 1908, 193 (Chinandega, Nicaragua; coll. U. S. Nat. Mus.). — Carriker, Ann. Carnegie Mus., vi, 1910, 604 (Pacific lowlands and lower slopes, rarely to 3,500 ft., Costa Rica; habits).

THAMNOPHILUS DOLIATUS YUCATANENSIS Ridgway.

YUCATAN ANTSHRIKE.

Similar to T. d. pacificus but adult male mth black bars on under parts usually narrower; adult female similar to that of T. d. pacificus but upper parts (except pileum) averaging more ochraceous (less rufescent), with wings (sometimes back and tail also) showing more or less distinct indications of dusky bars; averaging larger.

Adult male. — Length (skins), 146-162 (157); wing, 69.5-75.5 (72.1); tail, 60.5-65 (63.2); culmen, 18.5-20 (19.1); tarsus, 24-27 (26.2); middle toe, 14-16 (15.2).^[1] Adult female. — Length (skins), 155-163 (159); wing, 69-73.5 (71); tail, 62-67.5 (64); culmen, 19-20 (19.6); tarsus, 26.5-27.5 (27); middle toe, 15-16 (15.7).^[2]

Yucatan (Mérida; Chichen-Itza; Buctzotz; Peto; Temáx; Meco Island; Cozumél Island) and Campeche (Yohaltaá).^[3]

Thamnophilus affinis (not of Spix, 1825, D'Orbigny and Lafresnaye, 1837, nor Cabanis and Heine, 1859) Lawrence, Ann. Lyc. N. Y., ix, 1869, 201 (Mérida, Yucatan). — Nehrkorn, Journ. für Orn., 1881, 67 (Yucatan; descr. eggs).

Thamnophilus doliatus (not Lanius doliatus Linnæus) Boucard, Proc. Zool. Soc. Lond., 1883, 450 (Yucatan). — Salvin, Ibis, 1889, 365 (Meco Island, Yucatan). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1891, 202, part (Mérida, Buctzotz, Peto, Meco I., and Cozumél I., Yucatan).

↑ Ten specimens.
↑ Four specimens.
↑ Specimens from Alta Mira and Tampico in Tamaulipaa and Vallés, San Luís Potosí, come very near to the Yucatan form in coloration, and it is possible the latter may extend thus far northward along the narrow arid coast-belt. Specimens from Frontera, Tabasco, are intermediate in coloration between T. d. yucatanensis and T. d. mexicanus.

[1] Ten specimens.

[2] Four specimens.

[3] Specimens from Alta Mira and Tampico in Tamaulipaa and Vallés, San Luís Potosí, come very near to the Yucatan form in coloration, and it is possible the latter may extend thus far northward along the narrow arid coast-belt. Specimens from Frontera, Tabasco, are intermediate in coloration between T. d. yucatanensis and T. d. mexicanus.

[1]

[2]

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