676 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Genus GYMNASIO Bonaparte. 



Gymmmo Bonapaktb, Rev. et Mag. Zool. , vi (2), 1854, 543. (Type, Strix nudipes 



Daudin.) 

 Gymnada (emendation) Gray, Hand-list, i, 1869, pp. vi, 47. 

 Gymnoglaux Cabanis, Jour, fur Om., 1855, 466. (Type, Noctua nudipes Lembeye 



(not Strix nudipes Da.udm)=Cfym,noglaux lawreneii Sclater and Salvin.) 



Small Bubonidse (wiag about 160-170 imn.) resembling Otus in 

 general appearance but differing in absence of ear-tufts, in having 

 at least the lower half (usually much the greater part) of the tarsus 

 naked, and relatively shorter tenth primary. 



Bill moderate; top of cere nearly straight, shorter than chord of 

 culmen. Nostril small, nearly circular, in upper anterior edge of 

 the laterally inflated cere, and inclosing a distinct internal, nearly 

 central cartilaginous tubercle or shelf. Wing rather large, with 

 longest primaries exceeding distal secondaries by one-fourth the total 

 length of wing, or a little more; fifth, sixth, and seventh » primaries 

 longest, the tenth (apparent outermost) much shorter than second- 

 aries, the ninth shorter than third; * four or five outer primaries 

 with inner webs sinuated. Tail more than half as long as wing, 

 truncate to slightly rounded. Tarsus about one-fourth as long as 

 wing, about one and a half to one and two-thirds times as long as 

 middle toe without claw, at least the lower half (sometimes nearly 

 the entire length), as well as toes, naked. 



- Coloration. — Brown or nifescent above, usually more or less ver- 

 miculated with darker, sometimes with white spots on wing-coverts, 

 scapulars, etc.; tail sometimes barred, sometimes unicolored; outer 

 webs of primaries spotted with whitish or brownish buffy; under 

 parts white or buffy, more or less streaked with blackish and barred 

 or vermiculated with blackish, brown, or rufous. 



Range. — Greater Antilles (islands of Cuba, Porto Rico, St. Thomas, 

 and St. Croix) . (Two species.) 



KEY TO THE SPECIES AND SUBSPECIES OP GYMNASIO. 



a. Upper third, or more, of tarsus densely feathered; back and wing-coverts without 

 distinct white spots; under parts more or less (sometimes profusely) barred or 

 vermiculated; dichromatic. (Gymnasio nudipes.) 

 b. Darker and more rufescent brown above; under parts more profusely and more 

 heavily vermiculated and streaked. (Porto Rico.) 



Gynmasio nudipes nudipes (p. 677). 

 hb. Paler and more grayish brown above ; under parts more sparsely and less heavily 

 vermiculated and streaked. (St. Croix; St. Thomas; St. Johns.) 



Gynmasio nudipes newtoni (p. 679). 



aa. Upper third of tarsus (except extreme upper portion in front) wholly naked, like 



lower part; back and wings with conspicuous white spots; under parts without 



bars or vermiculations, but more or less broadly streaked; not dichromatic (no 



rufous phase). (Cuba; Isle of Pines.) Gynmasio lawreneii (p. 679). 



<» Fourth, fifth, and sixth from outside also, not counting rudinientary eleventh 

 primary. 

 6 Eighth froin outside, not countine concealed rudumentary eleventh primary. 



