278 Mr. R. Swinhoe on Formosan Ornithology. 



2. M. flavirostris (Horsf.), {Turdus flavirostris, Horsf. Trans. 

 Linn. Soc. xiii. p. 149 : M. metallicus, Temm. PI. Col. 170), with 

 a very large yellow bill. Hab. Java. 



3. M. caruleus (Scop.), (Sclater, 'Ibis/ 1860, p. 55), with 

 small black bill. Hab. Hills of Southern China. 



The subgenus Arrenga has hitherto comprised only the two 

 following forms : — 



1. M. cyaneus (Horsf.). 



Turdus cyaneus, Horsf. Trans. Linn. Soc. xiii. p. 149. 

 Pitta glaucina, Temm. PI. Col. 194. 



A small species from Java, pm'plish on the upper parts and 

 blackish brown on the lower. 



2. M. horsfieldii, Vigors (Gould's 'Century,' pi. 20). 



A larger species, dark, with very bright-blue shoulder-mark 

 and frontal band, from the Nilgiri Hills, India. 



To this last group our bird belongs, and to the last species in 

 particular it is closely affine. 



Note on a specimen shot at Tamsuy, 27th March, 1861. — 

 Length 13^^ in.; wing 6-1-; tarsi 2^; tail Sy'^p, of 12 feathers, 

 somewhat graduated, giving a rounded form to the tail when 

 expanded ; rectrices broad and rounded, each feather pointed at 

 the shaft, which projects ~ in. beyond the web (this is so in all 

 the specimens, and 1 think is partly due to the abrasion of the 

 web). Bill, legs, and claws black. Tongue horny, concave, 

 rounded at the tip, which is split into two sets of cilia ; inside 

 of bill and tongue blackish olive, paling into light dingy olive- 

 yellow flesh-colour as it descends to the glottis. Iris deep brown. 

 Ear very small, round, and white, the aperture being round and 

 central. Plumage purplish black. Lore and band over bill 

 deep black ; above this an obscure band of purplish blue. 

 Feathers of breast and belly broadly margined with ultramarine 

 or purplish blue ; small wing-coverts near the shoulder mar- 

 gined with a bright tint of the same. Wings and tail black, 

 washed with purple, chiefly on the outer webs of the feathers. 

 Feathers of the flanks and belly having the greater part of their 

 basal webs white ; those of the remaining feathers of the body 



