90 CORVID^H. 



feathers running behind the ear-coverts : rest of under surface of 

 bodj' creamy -nhite, tlie fianks purplish grej* ; under wing-coverts 

 white, the edge of tlic wing streaked with bhie ; bill and logs black. 

 Total length 24 inches, culmen 1-5, wing 7"7o, tail IT'T, tarsus 

 l-7o. 



Yoiuui. Similar to the adult, but having the long crest-feathers 

 verj- broadly tipped with white, and all the black feathers of the 

 throat obscured by very broad bluish white edgings. 



Hah. Western Mexico. 



a. Ad. sk. [Central America.] 



b. Ad. sk. [Central America.] Dr. .T. E. Gray [P.]. 



c. Jun. sk. Sau Bias. C-apt. Kellett and Lieut.Wood [P.]. 



d. Ad. sk. San Bias. A. Collie, E.-c[.[P]. (Type of species). 



23. PLATYSMURUS. 



Type. 



Platysmurus, Reich. Syst. Av. tab. Ixxx. fig. 6 (18.10) P. leucopterus. 



Glenargus, Cab. Mus. Hein. Th. i. p. 216 (1860) .... P. leucopterus. 



llange. From Burmah, through Tenasserira, down the ^Malayan 

 peninsula ; Sumatra, Borneo. 



Keij to the Species. 



a. Black, with a white bar down the wing levcoptei-us, p. 90. 



b. Entirely black ; head crested aterrinms, p. 91. 



1. Platysmurus leucopterus. 



Glaucopis leucopterus, Temm. PL Col. 265 ; Schl. Mus. P.-B. 



Coraces, p. 72. 

 Cryptorhina leucoptera, Wagl. Syst. Av. Cryptorliina, sp. 4. 

 Temnurus leucopterus, Less. Traite, p. 341 ; Gray, Gen. B. ii. p. 310 ; 



Blyth, Cat. B. Mus. A. S. B. p. 92 ; Gray, Iland-l. B. ii. p. 8 ; 



Biyth ^- Wald. Cat. B. Burma, p. 88; Hume, Str. F. 1874, p. 480. 

 Crvpsirhina leucoptera, Blyth, J. A. S. B. xii. p. 933 ; Bp. Cunsp. i. 



p. 369. 

 Platysmurus leucopterus, PeicJt. Syst. Ar. tab. Ixxx. fig. 6 ; Horsf. Sr 



Moore, Cat. B. Mus. E.I. Co. ii. p. 564; Salvad. Ucc. Born. 



p. 279. 

 Glenargus leucopterus, Cab. Mus. Hein. Th. i. p. 216. 



Adult. Everywhere black, excepting a white bar down the wing 

 formed by the tips of the greater coverts and the basal two thirds 

 of two of the central secondaries being white, the amount on the 

 latter quills varying in extent in ditfercnt individuals ; forehead 

 much crested, the feathers being harsh in texture and somewhat re- 

 curved ; round the eye a circlet of scaly black feathers. Total length 

 16 inches, culmen 1-25, wing 7*6, tail 7'8, tarsus 1-55. 



Hab. Malayan peninsula and Sumatra, ranging northwards into 

 Tenasserim. 



