676 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Genus GYMNASIO Bonaparte. 



Gymnasio Bonaparte, Kev. et Mag. Zool., vi (2), 1854, 543. (Type, Strix nudij)es 



Daudin.) 

 Gymnasia (emendation) Gray, Hand-list, i, 1869, pp. \-i, 47. 

 Gymnoglaux Cabanis, Jour, f iir Orn., 1855, 466. (Type, Noctua nudipes Lembeye 



(not Strix nudipes Daudin) =Gymnoglaux lawrendi Sclater and Salvin.) 



Small Bubonidse (wing about 160-170 mm.) 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 relativ.ely shorter tenth primary. 



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

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

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

 central cartUagiaous 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 thnd; ^ four or five outer primaries 

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

 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 rufescent 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 rtifous. 



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

 and St. Croix) . (Two species.) 



KEY TO THE SPECIES AND SUBSPECIES OF 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) I)arrecl or 

 vermiculated; dichromatic. {Gj/mnado nudipes.) 

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

 heavily vermiculated and streaked. (Porto Rico.) 



Gymnasio nudipes nudipes (p. 677). 

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

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



Gymnasio 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.) Gsminasio lawrencii (p. 679). 



a Fourth, fifth, and sixth from outside also, not counting rudimentary eleventh 

 primary. 



b Eighth from outside, not counting concealed rudumentary eleventh primary. 



