24. TIGEISOJIA. 193 



web with yellowish buff or white ; quills with white bars on the 

 inner web, often broken up into spots, the innermost secondaries with 

 sandy-buff bars like the back ; lower back and rump white, with 

 dusky edges to some of the feathers, the upper tail-coverts with 

 blackish bars near the ends ; tail-feathers black, with six bars of 

 sandy buff as well as a narrow tip of the same colour ; crown of 

 head and nape black ; sides of face barred with black and buff, 

 whiter on the cheeks ; a nuchal crest black, with narrow bars of 

 sandy buff; a frill down the sides of the neck consisting of broad 

 bands of sandy buff ; chin and upper throat white ; lower throat, 

 fore-neck, and breast broadly banded with black and sandy buff, the 

 bars a little narrower on the plumes of the chest ; lower breast and 

 abdomen white, washed with sandy buff at the ends of the feathers, 

 the flanks more strongly washed with this colour ; under wing- 

 coverts and axillaries white, washed with sandy buff : " bill black, 

 whitish towards the base ; feet brownish green ; iris greenish 

 yellow " {D'Albertis). Total length 21 inches, culmen 3*1, wing 11, 

 tail 4"6, tarsus 3'3. 



Hah. New Guinea and Salawati, and probably the Aru Islands. 



a. Ad. St. New Guinea. Purchased. 



b. S ad. sk. Salawati. Wallace CoU. 



c. Ad. sk. [Aru Islands (/. T.Coc^ere/^).]* • Salvin-GodmanCoU. 



24. TIGRISOMAt. rr™ 



Type. 



Tigi'isoma, Swains. Zool. Journ. iii. p. 362 (1828) T. lineatum. 



Range. South America from Guiana, Colombia, and Ecuador to 

 Southern Brazil, Argentina, and Peru. 



Key to the S_pecies. 



a. With transverse bars on the flanks and axillary 

 feathers, very distinct. 

 «'. Head and neck chestnut, with a few dusky 

 bars occasionally (adults), or tawny buff 

 baiTed -n-ith black (young) ; cheeks bare to 

 below the eye ; tail imiform. 

 a". Breast and abdomen uniform, not trans- 

 versely baiTed. 

 a'" . Axillaries black, with broad bands of 

 white ; vermiculations on upper sm'face 



coarse lineatutn, p. 194. 



b'". Axillaries dark slaty, with fine cross- 

 bars of white ; vermiculations on upper 

 surface very fine marmoratum, p. 195, 



* This specimen was sold by Mr. Cockerell as a " new species" from Thirsty 

 Sound near Port Bowen in Queensland. As all the other supposed " new " 

 species discovered by Mr. Cockerell proved to have come from the Aru Islands, 

 it is safe to suppose that this Tiger Bittern is also from the latter locality. 



t TiGRisoMA ExcELLENS, Ridgw. Proc. U.S. Nat. Mus. X. p. 595 (1887"). 



Hab. Costa Rica and Honduras. 



This species has not been seen by me : it is said to be allied to T. lineaturrw 

 VOL. XXVI. O 



