BIRDS OF NOKTH AND MIDDLK AMERICA. 125 



pt. X, Oct., 1877, 4.39-442, j>l. 79.— Koccaku, Proc. Zool. Soc. Lond., 1878, 53 

 (Navarro and Kancho Redmido, Costa Rica, alt. 4,000 ft.). — Salvin and 

 GoD.MAN, Biol. Centr.-Am., Aves, i, 1883, 221, pi. 14. — Sharpe, Cat. Birds 

 Brit. Mus., X, 1885, 219 (Irazu dis?tr., Costa Rica). — Zeledon, Anal. Mus. 

 Nac. Costa Rica, i, 1887, 108 (La Palma de San Jos^ and Rancho Redondo de 

 San Jose, Costa Rica).— Alfaro, Gaceta Of., no. 288, 1888 (Volcan de 

 Poas, Costa Rica). —Bangs, Proc. New Engl. Zool. Club, iii, 1902, 58 (Boquete 

 and Volcan de Chiriqui, Chiriqui, 4,000-11,000 ft.). 



Family DULID^. 



THE PALM CHATS. 



liiitlier small arborinil ten -pri marled acutiplantar Oscines with the 

 bill deep and compressed, the cidmen strongly curved; nostrils wholly 

 exposed, circular, in anterior end of distinct nasal fossae; tail decidedly 

 shorter than wing, even; outermost (tenth) ]irimarv much less than 

 half as long' as the next (ninth); under parts conspicuously streaked; 

 plumage i"ather hard and harsh, ver}" different from the silky blended 

 character of that of the Ampelida' and Ptilog-onatida\ 



The Palm Chats are a small group, consisting- of only two known 

 species, one of them peculiar to Haiti, the other of unknown habitat 

 but presumably some part of the West Indies. They are allied to the 

 Silky Flycatchers (family Ptilogonatida?), from which they differ, 

 however, in much stronger beak and feet (the latter with strongly 

 curved claws), shorter tail, and harsher, firmer plumage, with the 

 under j)arts conspicuously streaked. 



The}' are said to frequent chiefly the cocoanut palms and to feed 

 both on fruits and insects. 



Genus DULUS Vieillot. 



i>?<?tisViEiLLOT, Analyse, 1816, 42. (Type, "Tanagra esdave" Bu&on, = Tanagra 

 dominica Linnseus.) (See Strickland, Jardine's Contr. Orn., 1851, 103, 104.) 



Jiill decidedly shorter than head (exposed culmen not longer than 

 inner toe), relatively deep and compressed, its depth at nostrils equal 

 to more than half th<> length of exposed culmen; culmen decidedly 

 curved from the base, but tip of maxilla not distinct, its subterminal 

 tomial notch obvious but minute; maxillary tomium faintly concave, 

 the basid portion straight or very faintly convex; gonys nearly equal 

 to distance from nostril to tip of maxiihi, straight and ascending ter- 

 minally but rather prominent and slightly convex basally. Nostril 

 roiuidish or transversely ovate. entir(dy exposed, in anterior end of 

 nasal foss;e, separated behind from feath(M-ing of frontal antia' b}' 

 naked membrane. Rictal bristles obvious l)ut minute. Wing rather 

 long, rounded; eighth, se\'enth, and sixth ])rimaries longest, the tifth 

 shorter than eighth; ninth shortt'r than fourth; tenth ))etween one- 

 third and one-half as long as ninth; wing-tip about equal in length to 



