482 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Spathophorus superdliaris (not Prionites supereiliosus Sandbach) Cabanis, Joum. 

 fur Om., 1861, 255 (Costa Eica). 



Ewmomota superdliaris Lawrence, Ann. Lye. N. Y., ix, 1868, 117 (Costa Rica). — 

 Fkantztos, Joum. fiir Om., 1869, 311 (Costa Rica).— Sclatee, Ibis, 1873, 

 373 (Chontales, Nicaragua). — ^Botjoard, Proc. Zool. Soc. Lond., 1878, 49 

 (Barranca de Punta Arenas, Costa Rica). — Nutting, Proc. U. S. Nat. Mus., 

 V, 1882, 399 (La Palma de Nicoya, Costa Rica; habits) ; vi, 1883, 387 (Sucuya, 

 Nicaragua; habits). — ^Zbled6n, Proc. U. S. Nat. Mus., \dii, 1885, 109 (Costa 

 Rica); AnaL Mus. Nac. Costa Rica, i, 1887, 119 (Costa Rica). — Stone, Proc. 

 Ac. Nat. Sci. Phila., 1890, 206 (Chinandega, Nicaragua).— Shabpe, Cat. 

 Birds Brit. Mus., xvi, 1892, 317, part (Chontales and Chinandega, Nicaragua; 

 Bebedero, Costa Rica; La Libertad and San Miguel, Salvador?). — Saltin 

 and GoDMAN, Biol. Centr.-Am., Aves, ii, 1895, 464, part (Nicaraguan and 

 Costa Rican localities and references). — ^TJndeewood, Ibis, 1896, 443 (Bagaces 

 and Bebedero, Costa Rica). 



[Eumomota] superdliaris Sclatek and Salvin, Nom. Av. Neotr., 1873, 103, 

 part. — Shaepb, Hand-list, ii, 1900, 76, part. 



Eumomota superdliaris australis Bangs, Proc. Biol. Soc. Wash., xix, July 30, 

 1906, 104 (Bebedero, n. w. Costa Rica; coll. E. A. and O. Bangs). — Careiker. 

 Ann. Carnegie Mus., vi, 1910, 496 (Bebedero, Bols6n, and MiravaUes, n. w. 

 Costa Rica). 



Genus ASPATHA Sharpe. 



Aspathaa Shabpe, Cat. Birds Brit. Mus., xviii, 1892, 331. (Type, Prionites 

 gularis Lafresnaye.) 



Small Momotidse (lengtli about 260 mm.) with biU shorter than 

 head, moderately depressed (its width at nostrils about equal to 

 or very slightly greater than its depth at same point), cuhnen not 

 distractly ridged (except basally), tarsus decidedly longer than dis- 

 tance from nostril to tip of maxilla, tail (of ten rectrices) much less 

 than one-third longer than wing, the middle rectrices always with 

 webs continuous (uninterrupted). 



Bill shorter than head, about as wide as deep at nostrUs (or very 

 slightly wider), broad and very shghtly tapering to near tip in ver- 

 tical profile, distinctly decurved at tip; culm en (from extreme base) 

 about one-third as long as wing, shghtly convex throughout, strongly 

 decurved at tip, rather distinctly ridged for basal half, very indis- 

 tinctly it at all ridged terminally; gonys about one and a half times as 

 long as mandibular rami, broadly rounded, without trace of median 

 ridge; serrations of tomia distinct only on middle third (approxi- 

 mately). Nostril moderate, oval, obhquely vertical, in anterior end 

 of nasal fossa. No prefrontal (postnasal) bristles; rictal bristles 

 moderately developed, those of malar apex larger and stronger, and 

 feathers of chin with long, recurved, bristly tips. Head completely 

 feathered, the auricular feathers elongated and somewhat stiffened, 

 producing a conspicuous tuft; a small tuft of elongated feathers in 

 middle of lower foreneck. Wing rather short and roimded, the 

 longest primaries exceeding longest secondaries by about length of 

 hallux without claw; fifth, sixth, and seventh primaries longest, the 



