28. AcoMcs. 283 



28. ACOIIUS. 



Type. 

 Houppifer, Giterin-Meneville, Icon. lil'i/. Anwi., 



Ois. p. 2(J (1829-38) A. erythrophtbalmus. 



Alectryou, Cab. {nee Montf., Moll. 1810) in 



Ersch u. Grub. Encycl. sec. 3, xxii. p. 147 



(1S4()) A. pyronotus. 



Acomiis, lieichenb. 2\at. 8yst. Viiy. p. xxx 



(18-32) A. eiythrophthalmus. 



Ilouppiferus, Elliot, Man. Phas., Introd. p. xxi 



(1872) A. erythroplithalmus. 



Tail composed of 14 feathers, rather short, laterally compressed 

 and hen-like ; the third pair are very slightly longer than the 

 middle and very much longer than the outer pair. 



1st primary considerably shorter than the 2nd, which is about 

 equal to the 10th ; 6th slightly longest. 



Head without a crest. 



A large ntJied patch on each side of the head. Xo wattles. 



Male and female with a pair of stout spurs. Female black *. 



Tarsus nearly half as long again as the middle toe and claw. 



Uanje. Malay Peninsula, Sumatra, Borneo. 

 Key to the Species. 



I. Pluirage not uniform black. 



A. Chest and breast black enjthrophthalmus <S , p. 283. 



B. Chest and breast black with white 



shaft-stripes pyronotus cT , p. 284. 



II. I'lumage uniform black 



C. Upper parts uniformly glossed with j erythrophthalmus 2 , p. 283. 



greenish blue \pyronotus $ , p. 284. 



D. Feathers of the ujtper parts edged 



with shming bluish green, pro- 

 ducing a scale-like appearance .. inornatiis (S'\,y>.'2So. 



1. Acomus erythrophthalnms. 



Phasianus erythrophthalmus, i?(7^. Tr. Linn.Soc. xiii. p. 321 (1822) 



[Sumatra], 

 lliifous-tailed Pheasant, Lath. Gen. Hid. viii. p. 204 (1823). 

 Houppifer diardii, Guerin-M eneville, Icon. liey. Anim., Ois. p. '26, 



pl. 43. fig. 2 (1828-38) [Java]. 

 Phasianus erythrophthalmus, Gray, in Griff", ed. Cuv. iii. p. 28 (1829). 

 I'ha.sianus purpureus, Gray, III. Ind. Zool. i. pl. 42 (18.30-32). 

 Alfctrophasis ervthrDphthalmuy, Grat/, List Gen. B. p. 78 (1841) ; id. 



List of n.yt.'Vn. Gull. p. 2(j (1844); ILime, Sir. J^'. viii. p. 68 



(1870) [Malacca] ; Kelham, Ibis, 1881, p. 531 [Perak]. 

 Alectrophasis purpm-eus, Gray, List Gen. B. p. 78 (1841). 

 Gallophasis erytlirophthahuos, Gray, Gen. B. iii. p. 408 (184^3). 

 Gallophasis purpureus, Gray, Gen. B. iii. p. 498 (1845). 

 Eiiplocomus erythrophthalnios, Blyth, Cat. .Mns. As. <Soc.p.24o (1849). 

 Euplocamus ervtlirophthalnuis, Sc/at. i\- Wolf, Zool. Sket. 2. pl. 34 



(1^(31) ; !:iclat. List of Phas. p. 7, pl. 8 (18(33). 



* The female of A. inornatus is not yet known. t See footnote page 285. 



