June, 1917] FringiUine Genus Passerherbulus 333 



four and one-half times the length of the exposed culmen ; bill relatively 

 more slender, the length of exposed eulmen decidedly more than twice 

 the height of bill at base, the height at base very much less than the 

 length of the gonys; and exposed culmen about equal to middle toe 

 without claw. 



Description. — Tail about nine-tenths of wing or somewhat more, but 

 never as long as wing; first primary (counting from the outennost) 

 shorter than the seventh, usually about equal to the eighth; bill much 

 lengthened, the wing four to four and one-half times the length of 

 exposed culmen ; length of exposed culmen two and one-fourth to two and 

 one-half times the height of bill at base; the height of bill at base about 

 three-fourths of the length of gonys; exposed eulmen about equal to 

 middle toe without claw. 



Type. — Fringilla maritima Wilson. 



Remarks. — The seaside sparrows are, as above shown, very 

 distinct in structural characters from the other birds commonly 

 associated wath them in the same generic group, and there is 

 no doubt of the propriety of their generic segregation. The 

 very long bill and much rounded w4ng, together with their 

 other proportions, easily distinguish them. The species and 

 subspecies included in this group are as f ollow^s : 



Thryospiza maritima maritima (Wilson). 

 Thryospiza maritima macgillivraii (Audubon). 

 Thryospiza maritima peninsulce (Allen). 

 Thryospiza maritima sennetti (iVllen). 

 Thryospiza maritima fisheri (Chapman). 

 Thryospiza nigrescens (Ridgway). 



Ammospiza Oberholser. 



Ammodramiis Swainsox, Zool. Journ., Ill, August to 

 November, 1827, p. 348, (type by original designation, Fringilla 

 caiidacuta Wilson) (nee Ammodramus Swainson, Philos. Mag., 

 new series, I, June, 1827, p. 435, qui Coturniciiliis Bonaparte). 



Ammospiza Oberholser, Smiths. Misc. Coll., Vol. 48, May 

 13, 1905, p. G8, (t^^pe by original designation, Oriolus caudacutus 

 Gmelin) . 



Chars, gen. — Similar to Thryospiza, but tail decidedly shorter, not 

 over seven-eighths of wing ; first primary (counting from the outermost) 

 longer than sixth; bill stouter and only moderately lengthened, the 

 length of exposed culmen about twice the height of bill at base; and 

 exposed culmen very much less than middle toe without claw. 



Description. — -Tail three-fourths to seven-eighths of wing; first 

 primary (counting from the outennost) longer than the sixth, sometimes 



