54. EUPSYCIIOKIVX. 411 



A'/ith male* Differs from E. sonnini generally in being more 

 richly and darkly coloured ; the feathers of the crest are shorter 

 and browu ; the car-coverts are brown ; the chest is pale chestnut ; 

 the breast and belly are rufous chestnut, and the white spots are 

 much reduced in number. Total length 8-5 inches, wing 3'9, tail 

 2'5, tar>us 1, middle toe and claw 1-15. 



Adult female. Does not differ from the female of E, sonimii. 



Hah. United States of Colombia; vicinity of Bogota. 



a-c. (S ad. sk. Nr. Sta. Fe de Bogota, U.S.C. Salvin-Godman Coll. 



{G. Crou-ther). 



d-i. 6 ad. sk. Sta. F6 de Bogota. Gould Coll. 



k~m. S $ ad. sk. Sta. F^ de Bogota. Purchased. 



et St. 



*^-P- 6 $ ad. sk. Sta. Fe de Bogota. Tweeddale Coll. 



5. Eupsychortyx leylandi. 



Ortvx leylandi, Moon; P. Z. 8. It^yO, p. 62 [Omoa to Coniavagua, 

 Honduras] ; Sclat. S,- Snhin, Ibis, 1859, p. 2i'6 : Taijlor, Ibis, i860, 



fi. 312 [Comavagua, Honduras] ; Boiicard, P. Z. S. 1878, p. 42 

 San Jos6, Costa Eica] ; Nutting, P. U. S. Nat. Mus. vi. p. 390 

 (1884) [Nicaragua]; Zeledon, P. U. S. Nat. Mus. viii. p. 112 

 (1880) [Costa IJicaJ. 

 P]upsvchortvx leucofrenatus, £Uict, Ann. Lye. N. York, vii. p. 106, 



pi. 3 (1860) [Honduras]. 

 Coliuus leylandi, C/ierrie, Auk, ix. p. 320 (1892) [San Jos6, Costa 

 liica]. 



Adult male. Most nearly allied to E. sonnini and E. jjaw?- 

 cristatus, the chest being vinaceous, indistinctly vermiculated with 

 dusky and vcrj' sparingly sjiotted, but easily to be distinguished 

 from either by having the chin and throat black ; the sides of the 

 throat and superciliary stripes bufft, wider and nearly uniform 

 in old birds, but narrower and each feather tipped with black in 

 younger examples ; in old birds, too, the base of the throat is bounded 

 by white feathers with black tips, in younger birds these are re- 

 presented by dull rufous feathers edged with black ; the upper 

 parts are considerably darker than in eitlier of the above-mentioned 

 species, the black vermiculations and miirkings being much coarser. 

 Total length 8-4 inches, wing 4"1, tail 2-4, tarsus 1*1, middle toe 

 and claw 1-3. 



• The description and measurements are taken from the most richly-coloured 

 Bogota specimens, with the breast and belly mostly chestnut; in other specimens 

 which more nearly approach K. scnmiiii in the culoration of tliese jwrts the 

 general size is nitlier larger and the tarsus is \2. AVith limited material and 

 labels without exact particulars, it is impossible to say wliat the cause of this 

 variation in size and colour may be, but tlie probability is that it is climatic. 



t Very conspicuous in two birds from Nicaragua, much less so in two from 

 Costa Rica ; but, as another adult specimen from Nicaragua is perfectly inter- 

 mediate, I do not attach much importance to these difftrcnces, and believe 

 they are due to age and not to locality. 



