BIRDS OF NORTH AND MIDDLE AMERICA. 



601 



Highlands of Guatemala (Duenas; Quezaltenango; Retalhuleu; 

 Esciiintla; SaiiGeronimo; Rio Michatoya, near San Pedro Mart ir). 



Sayornis aqunlica Sclater and Sai.vin, Ibis, i, Apr., ]859, 119 (Duenas, Guate- 

 mala;' coll. Salvin and Godman). — Sclater, Cat. Am. Birds, 1862, 200 

 (Duenas); Cat. Birds Brit. Mus., xiv, 1888, 33, part (Duenas, Guatemala). — 

 Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1889, 65, part (Quezaltenango, 

 Dueiias, Retalhuleu, Escuintla, Rio Micliatoya, and San Geronimo, Gua- 

 temala). 



[Sayornis] aqvatica Sclater and Salvin, Nom. Av. Neotr., 1873, 43, part (Guate- 

 mala). — Sharpe, Hand-list, iii, 1901, 137, part. 



Sayornis nigricans, var. aquatica Ridgway, Am. .Tourn. Sci. and Arts, Dec, 

 1872, 456, part. 



Sayornis nigricans var. aciuaticus Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 340, jjart (Guatemala). 



A[ulana:v] aqnaticus Cabanis and Heine, Mus. Hein., ii, 1859, 68, footnote (Gua- 

 temala). 



[Tsenioptera] aquatica Gray, Hand-list, i, 1869, 343, no. 5192. 



Sayornis nigricans aquatica Nelson, Auk, xvii, Apr., 1900, 125, part (Guatemala). 



SAYORNIS NIGRICANS AMNICOLA (Bangs). 

 PANAMA PHCEBE. 



Similar to S. n. aquatica, but with white abdominal area still more 

 restricted, under tail-coverts wholly dusky, and color of back de- 

 cidedly darker (slate-black mstead of brownish slate). 



Adult male.— Length (skins), 147-161 (155); w-ing, 80-88 (85.2); 

 tail, 69-77.5 (74.9); exposed culmen, 15-16 (15.5); tarsus, 16.5-18 

 (17.4); middle toe, 10-10.5 (10.1). « 



Adult female.~L&ngi\\ (skms), 149-164 (155); wing, 80-86 (83.2); 

 tail, 71-75.5 (72.9); exposed culmen, 13.5-15 (14.1); tarsus, 16.5- 

 17.5 (17.1); middle toe, 9.5-10.5 (10).^ 



Highlands of Costa Rica (San Jose; Alajuela; San Pedro; NavaiTo) 

 and western Panama (Boquete) ; Nicaragua ? 



(?) Sayornis nigricans (not Tyrannula nigricans Swainson ?) Bonaparte, Compt. 



Rend., xxxviii, 1854, 657 (Nicaragua); Notes Orn. Coll. Delattre, 1854, 



87 (do.). 

 Aulanax aquaticus (not Sayornis aquatica Sclater and Salvin) Cabanis. .lourn. 



fiirOrn., 1861, 247 (Costa Rica). 



« Four specimens. 

 & Five specimens. 



