THE LONG-NAILED PARTRIDGES. I49 



III. THE OCELLATED HARLEQUIN QUAIL. CYRTONVX 

 OCELLA'l US. 



Ortyx ocellatus, Gould, P. Z. S. 1836, p. 75. 



Cyrtonyx ocellaius^ Gould, Monogr. Odontoph. pt. ii. pi. 8 



(1846); Ogilvie-Grant, Cat. B. Brit. Mus, xxii. p. 428 



(1893). 

 Cyrtojiyx suinichrasti, Lawrence, Ann. N. Y. Sci. i. p. 51 



(■877). 



Adult Male. — Differs from the male of C sallcei^ already de- 

 scribed, in having the black markings on the upper-parts in the 

 form of round black spots ; the middle of the chest and breast 

 pale buff, tipped with rufous ; and the flanks chestnut, irregu- 

 larly barred 7vith blacky shading into grey towards the margins. 

 Total length, 8-3 inches ; wing, 5-3; tail, 2-2; tarsus, 1-25; 

 middle toe and claw, 1-5. 



Adult Female. — Like the female of C. mojttezumcE, but the 

 general colour above is black, finely barred with rufous and 

 mottled with sandy. Total length, 8 inches ; wing, 5 ; tail, 

 2-2; tarsus, 1-25 ; middle toe and claw, 1-45. 



Range. — Central America ; Tehuantepec to Guatemala. 



THE LONG-NAILED PARTRIDGES. GENUS 

 DACTYLORTYX. 



Dactylortyx, Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 429 



(1893). 

 Type, D. thoracicus (Gambel). 



Plumage of sexes dijfere7it. A short crest. 



First primary flight-feather eqiial to the eighth ; fourth 

 longest. 



Tail composed of tivelve feathers, and tivo-fifths of the 

 length of the wing. 



Tarsus shorter than the middle toe and claw. 



Claws very long and but slightly curved. 



