THE LONG-NAILED PARTRIDGES. 1 49 



III. THE OCELLATED HARLEQUIN QUAIL. CYRTONYX 

 OCELLA'lUS. 



Ortyx ocellatus, Gould, P. Z. S. 1S36, p. 75. 

 Cyrtonyx ocelhitus, Gould, Monogr. Odontoph. pt. ii. pi. 8 

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



(1893). 

 Cyrtonyx suinichrasii, Lawrence, Ann. N. Y. Sci. i. p. 51 



(1877). 

 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, in-egu- 

 larly barred with blacky shading into grey towards the margins. 

 Total length, 8"3 inches ; wing, 5*3; tail, 2*2; tarsus, i'25 ; 

 middle toe and claw, 1-5. 



Adult Female. — Like the female of C. inontezunice, 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, i*4S. 



Ean^e. — Central America j 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 dijferent. A short crest. 



First primary flight-feather equal to the eiglith ; fourth 

 longest. 



Tail composed of twelve feathers, and two-fifths of the 

 length of the wing. 



Tarsus shorter than the middle toe and claw. 



Claws very long and but slightly curved. 



