902 



SECOND APPENDIX. 



are concerned at least, by the extensive co- 

 hesion of the inner and middle toes, the 

 reticulation of the posterior face of the tar- 

 sus, and especdally by the shortness of the 

 first primary in the male, together with the 

 slight hooking of the bill. 



126 4. PLATYPSARIS. (Gr. jrXarur, 

 plains, broad; ■^ap, psar, a starling. Bona- 

 parte, 1854; Sclater,P. Z.S.,1857,p.72. Type 

 Pachyrhamphus latirostris, Bonap.) Becaeds. 

 Nostrils hidden by bristly feathers ; hook of 

 bill very slight, and biU not much flattened; 

 rictal bristles long ; head somewhat crested; 

 1st primary short; 2d emargiuate in the 

 male; tail rounded; tarsus with large soutella 

 on the inner side. Sexes dissimilar. Two 

 species occur on the Mexican border of the 

 United States. 



No. 394 bis, p. 444. Add: Platypsaris 

 aglaise. Kose-thkoated Becard. ^ adult: 

 above, slate-gray, with the crown glossy 

 black; below, ashy-gray, with a rosy patch 

 on the throat. 9 above dark rusty brown, 

 becoming slaty on the crown. Length 6.60; 

 wing 3.50; tail 2.75; bill 0.65. Eastern 

 Mexico, north to the valley of the Rio Grande. 

 (Pachyrhynchus aglaicB, Lafresnaye, Rev. 

 Zool., 1839, p. 98; Pachyrhamphus <iglaicB, 

 Baird, Birds North America, 1858, p. 164, 

 and Mex. Bound. Survey, 1859, II., pt. ii., pi. 

 ix., fig. 1 ; Platypsaris aglaim, Sumichrast, 

 Mem. Bost. Soc. Nat. Hist. I., 1869, p. 

 558.) 



No. 394 ter, p. 444. Add: Platypsaris 

 albl~ventris. White-bellied Becard. 

 $ adult : resembling the preceding, but 

 lighter and more ashy-gray above, the crown 

 slaty, the under parts pale grayish, whitening 

 on the belly. 9 correspondingly paler than 

 that of P. aglaicE. Western Mexico, north 

 into southern Arizona. (Hadrostomus albi- 

 veniris, Lawrence, Ann. Lye. Nat. Hist., 

 Vin., 1867, p. 475; Platypsaris albiuentris, 

 Ridgway, Man. N. A. Birds, 1887, p. 325.) 



126 B. PACHYRHAMPHUS. (Gr. jraxus, 

 pachus, thick ; pafix^os, rhamphos, beak. G. R. 

 Gray, List Genera Birds, 1838, p. 41.) Re- 

 sembling the preceding; bill more flattened, 

 with shorter rictal bristles; tail graduated 

 about J an inch ; tarsus naked on inner side. 



Sexes very unlike. One species found on 

 the Mexican border of the United States. 



No. 394 quater, p. 444. Add: Pachy- 

 rhampus major. Greater Becard. ^ad- 

 ult : above, ashy-gray, becoming glossy black 

 on the back and crown, and white on the 

 scapulars; below, pale ash, whitening on 

 throat, belly, and crissum; wings black, 

 with white edging or tipping of the coverts 

 and some inner secondaries ; tail black, with 

 white tips of the feathers. 9 mostly chest- 

 nut brown, paler below, black on the crown 

 and ends of the tail-feathers.- Length 6.50; 

 wing 3.25; tail 2.65; bill 0.60. Eastern 

 Mexico, north to the valley of the lower Rio 

 Grande ; introduced to our fauna by Baird in 

 1858 under the name of Bathmidurus major, 

 and figured in Report of the Mexican Boun- 

 dary Survey, 1859, pi. ix, fig. 2, but like 

 Platypsaris aglaim lost sight of for some years, 

 and not yet recognized in the Committee's 

 list. (See Sclater, P. Z. S., 1857, p. 78; 

 Ridgway, Man. N. A. Birds, 1887, p. 326.) 



No. 395, p. 450. Nyctidrormts albicollis be- 

 comes N. a. merrilll, Sennett, Auk, Jan. 

 1888, p. 44. The Texan form is distinguished 

 by its larger size (wing and tail each averag- 

 ing 7.00 inches), prevailing gray coloration 

 of the upper parts, and in the male the re- 

 duction or extinction of the white on the 

 outer tail-feather. 



No. 398 his, p. 879. Phalcenoptilus nuttalli 

 nitidus, the Frosted Poor-will, is confirmed by 

 the Committee. 



No. 398 bis, a, p. 453. Phalcenoptilus 

 nuttalli californicus is proposed as a new 

 subspecies from the coast of California by 

 Ridgway, Man. N. A. Birds, 1887, p. 588, 

 note, and confirmed by the Committee. Two 

 skins are said to be " altogether darker than 

 any from elsewhere." 



No. 400 bis, p. 454. Add: Chordediles 

 popetue sennetti, Coues, Auk, Jan. 1888, p. 

 37. This is that pale subspecies of the Night- 

 hawk which is characteristic of the un- 

 wooded country from Texas to Dakota. It 

 is recognized by the Committee under the 

 name of Chordeiles virginianus sennetti after- 

 ward bestowed by Chamberlain, Syst. Tabl. 

 Canadian Birds, 1888, App. A, p. 14. 



