544 NORTH AMERICAN BIRDS. 



1.28, tarsus 1.35-1.45. Efjgs 1.07 X "8, colored liko those of H. 

 rufus. Hah. Lower Eio Grande Valley, in Texas. 



706. H. longirostris sennetti Eidow. Texas Thrasher. 



(P. Wing 3.55, or less, tall 4.45, or less; lower niaiulihle wholly 



black ; colors darker, the markings more sharply defined ; 



wing 3.40-3.55, tail 4.10-4.45, culmen 1.20-1.25, tarsus 1.15- 



1.25. Hab. Cozumel Island, Yucatan. 



H. guttatus KiDGW. Cozumel Thrasher.' 

 6'. Above brownish gray. 



c'. Markings on lower parts sharply defined, much darker than color of 



back. (Outer tail-feathers with white terminal spots; wings with 



two distinct white bands.) 



d}. Markings of lower parts roundish ; under tail-coverts spotted ; 



wing 4.10, tail 5.G0, much graduated ; exposed culmen 1.15, 



tarsus 1.50. Hab. Southwestern Mexico (Oaxaca). 



H. ocellatus ScL. Ocellated Thrasher.' 

 cP. Markings of lower pai'ts triangular or wedge-shaped ; under tail- 

 coverts without spots; length about 10.00, wing 3.90-4.15, tail 

 4.35-4.60, moderately graduated, culmen 1.10-1.12, tarsus 1.25- 

 1.40. Eggs 1.06 X -75, greenish white, spotted with pale reddish 

 brown. Hab. Lower California. 

 (86.) 709. H. cinereus Xantus. St. Lucas Thrasher, 



c'. Markings on lower parts indistinct (sometimes nearly if not quite 

 obsolete), or else not darker than color of back. 

 d}. Lower mandible with basal portion light-colored ; exposed culmen 

 .95, or less, bill from nostril less than .85. 



Adult : Above plain graj'ish brown, the middle and greater 

 wing-covcrts with indistinctly paler tips ; beneath much 

 paler grajMsh brown, becoming nearlj- white on chin and 

 throat and middle of belly, huffy on under tail-coverts, and 

 more decidedly brown on flanks, the chest and breast 

 (sometimes upper bellj' also) marked with triangular spots 

 or streaks of deeper graj'ish brown (these markings usu- 

 ally indistinct — sometimes quite obsolete — in summer ])lu- 

 mage) ; inner webs of two or three outer tail-feathers tipped 

 with dull whitish. Young : Similar to adult, but wing- 

 covcrts and rump tinged with tawny bufl", tertials edged 

 ■with same, and lower parts usually whiter, w-ith nar- 

 rower (and sometimes much darker) streaks. Length 

 about 9.50-10.50. wing 3.90-1.20. tail 4.25-4.90, exposed 

 culmen .87-.95, bill from nostril .75-.81, tarsus 1.30-1.40. 

 Eggs 1.05 X -76, similar to those of//, cinereus, but ground- 

 color averaging paler, or more decidedly whitish. Hab. 



• Hnrpnrhynchut gutltaut RiDOW., Dcsor. Now S|). B. Cciiuiucl, Feb. 20, 1S85, 1. 



* Harporhi/nchut vcellalut ScL., P. Z. S. 1S62, 18, pi. 3. 



