BIRDS OF NORTH AND MIDDLE AMERICA. 219 



Ainmodramus maritimus sennetli Allen, Auk, v, July, 1888, 286 (Corpus Chi"isti, 

 Texas; coll. G. B. Sennett), 426 (Corpus Christi, May 26); v, Oct., 1888, 

 498 (Corpus Christi). — American Ornithologists' Union, Suppl. to Check 

 List, 1889,13; Check List, abridged ed., 1889, no. 5506; 2d ed., 1895, no. 550/;.— 

 Chapman, Bull. Nutt. Orn. Club, iii, 1891, 32.3 (Nueces Bay, Texas; song; 

 crit.).— Rhoads, Proc. Ac. Nat. Sci. Phila., 1892, 109 (Nueces Bay). 



Ainmodramus sennetti Chapman, Auk, xvi, Jan., 1899, 3 (crit.), pi. 1, lower tig. 



AMMODRAMUS NIGRESCENS Ridgway. 

 DUSKY SEASIDE SPARROW. 



Adults {se.res al/ke). — Alcove black, indistinctly .streaked with olive 

 and gra34sh; wing- and tail feathers edged with olive-brown; supra- 

 loral spot and edge of wing gamboge yellow; under parts white, thickly 

 and broadly streaked with l)lack. 



Adult mah'.— Length (skins), 124.46-129.5-1: (127.00); wing, .58.93- 

 60.15 (59.91); tail, .51.61-55.88 (55.12); exposed culmen, 13.21; depth 

 of bill at base, 6.35; tarsus, 21.59-22.35 (21.81); middle toe, 15.19- 

 15.75 (15.12).^ . 



Adult fhnale.— Length (skins), 121.16-130.81 (127.51); wing, 57.1.5- 

 60.96 (58.93); tail, 56.39; exposed culmen, 12.9.5-13.16 (13.21); depth 

 of bill at base, 6.60; tarsus, 21.31-23.11 (22.10); middle toe, 15.75." 



^riddle portion of east coast of Florida (Merritts Island; east shore 

 Indian River opposite Titusville; Dummitts Creek; Salt Lake, upper 

 St. Johns River; ''marshy islands of Banana River, north along this 

 body of water to the Haulover Canal.'"). 



Ammodromiis )ii<irilim)i>i, vat. ivgrescens Ridgway, Bull. Essex Inst., v, Dec, 1873, 

 198 (Indian R., Florida; coll. R. Ridgway^) . — -Baird, Brewer, and Ridgway, 

 Hist. N. Am. B., iii, 1874, 514.— Coves, Check List, 1874, 127 (no. 165«). 



A.l_mmodromus'] maritimus nigrescens Scott, Auk, vi, Jan., 1886, 16, in text. 



A. [mmodramus'] m. [nritiiinis'] nigrescens Coues, Key N. Am. Birds, 2il ed., 

 1884, 368. 



Ammodromiis nigrescens Ridgway, Proc. U. S. Nat. Mas., iii, Mar. 27, 1880, 2; 

 Norn. N. Am. B., 1881, no. 203.— Sharpe, Cat. B. Brit. Mus., xii, 1888,685. 



Ammodramus nigrescens American Ornithologists' L^nion, Check List, 1886, no. 

 551. — Chapman, Auk, xv, 1898, 270 (mo. Dummitts Creek, e. Florida); xvi, 

 1899, 2 (crit.).— Kocn, Auk, xvi, 1899, 277 (Indianola, Merritt's I., e. 

 Florida). 



Ammodramus maritimus nigrescens Cotes, Check List, 2d ed., 1882, no. 239. 



A. [mmodramus] m..[aritimus'] nigrescens Coces, Key N. Am. Birds, 2d ed. 1884, 

 368. 



^ Three specimens. 



^ Two specimens. 



The average length of eight specimens, measured by ]Mr. C. J. IMaynard, before 

 skinning, was 171.45, the extent of wings being 199.90. ("Birds of Florida," pp. 

 119-120.) 



Mr. Chapman (Auk, xvi, 1899, p. 2) gives the average measurements of seventeen 

 specimens "in comparatively unworn plumage," as follows: Wing, 63.50; tail, 51.82; 

 bill from nostril, 10.92. 



^ Type now in collection of U. S. National ^luseum. 



