4. coRYTn.i;oL\. 449 



A'luU. Similar to M. violarea, but ditfers in having a well-marked 

 crest, no white band on the side of the head, a violet-blue margin 

 between the bare eye-ijatch and the crest, and scarcely a trace of 

 green on tbe lower throat. Total length 19 inches, culmen 1*8, 

 wing S'/), tail 9-5, tarsns 1'85. 



Jfab. Angola to Lake Tanganyika and north to Semmio in the 

 Niam-Niara Country. 



a. Ad. sk. Semniio, Niaai-Niain Country, F. Bohndorff [C.]. 



Feb. 

 /;. 2 ^^- *''• Tiiu'asi, Equatorial Africa, Aug. Eniin Pasha [P.]. 



c. Ad. sk. Angola. Gould Coll. 



(Type of the species). 

 (I Ad. sk. Angola (//(/»J)7^o«). Gould Coll. 



4. C0IlYTH.a;9LA. ^ 



Type. 



Corythoeola, Heine, J.f. 0. 1860, p. 100 C. cristata. 



Range. West and Central Africa, from Angola and the Island of 

 Fernando Po to Senegambia, and from the northern watershed of 

 the Congo to Monbuttu and Niam-Xiam. 



1. Corythaeola cristata. 



Le Touraco Geant, Zem;//. Hist. Nat. Prom. etc. p. 36, pi. 10 (1800). 



Musophaga cristata, Vieill. Analyse, p. CiS (1S16). 



Musophaga gigantea, Vieill. Enc. Mith. p. l:.^0o (1823); Hartl. 



J. f. O. 1855, p. 301 ; Sold. ^ Wtsterm. Tuerakos, p. 20, pi. 12 



(I860) ; Sharpe, Ibis, 1869, p. 385, 1870, p. 473 ; id. Cat. Afi: B. 



p. 10(1871). 

 Blue Curassow, Lnth. Gen. Hist. B. viii. p. 156 (1823). 

 Corythai.x; gigas, Stej^h. Gen. Zool. xiv. p. 222 (1826). 

 Chizserhis gigantea, Wagl. Sijst. Av. sp. 1 (1827). 

 Crax cyaneus, J. E. Gray in Griff. An. Kinyd. iii. p. 117 (1820). 

 Gallirex giganteus, Less. Echo du Monde Sac. 1844, p. 110. 

 Turacus giganteus, Gray, Gen. B. ii. p. 395 (1845) ; Bp. Consp. i. p. 87 



(1850); Riipp. Arch.f. Naturq. xviii. p. 322 (1851); Jard. Contr. 



Orn. 1852, pp. 74, 78; Hartl. J.f. 0. 1854, p. 125; id. Orn. U'.-Afr. 



p. 159 (LS57) ; Heine, J.f. O. i860, p. 190; Bocay, Orn. Angola, 



p. 133(1877) ; Sharpe,Journ. Linn. Soc., Zoul. xvii. p. 438 (1884). 

 Pliimus giganteus, Sundev. (Efv. K. Vet.-Ak. Fiirh. 1849, p. 161, 



pi. 17. 

 Turacns cristatus, Bp. Consp. i. p. 88 (1850) ; Gray, Harnl-l. B. n. 



p. 126, no. 7859 (1870) ; Ussher, Ibis, 1874, p. 51 ; Sharpe, P. Z. S. 



1878, p. 134. 

 Corythreola cristata, Heirw, J. f. 0. 1860, p. 190; Schahtc, J.f. O. 



1886, p. 55 ; S/ielley, P. Z. S. 1888, p. 44. 

 Turacus gigas, lieichen. J.f. O. 1875, pp. 1, 48. 

 Schizorhis cristatus, Bouvier, Cat. Marehe i)-c. p. 27 (1875). 



Adult male. General plumage above vcrditer-blue, passing into 

 black on the crest and nape ; two centre tail-fcathcra and ends of 

 all the others blue like the back, all with a broad black subtermiaal 

 bar, the remainder dull yellow with blue bases ; bare patch round 



VOL. XII. 5i G 



