602 ^ ^'EW GENUS OF TBOGOXS— RICHMOND. voL.xvn. 



a new generic term for A. viftafnm, I am led to propose for this species 

 the name 



H E T E R O T K O G O N , uew gemis. 



Diagnosis. — Size medium; form slender; tail long; rectrices not trun- 

 cate. Three center pairs of rectrices, dark purplish-blue, with metallic 

 retlections, in both sexes ; no black terminal bar on middle pair ; three 

 outer i^airs with black and white bars on their exposed portions. Bill 

 small, slender, and much compressed. Tomia of both maxilla and 

 mandible smooth, without signs of serrations posterior to subtermiual 

 notch. Sexes unlike in coloration. 



Habitat. — Equatorial Mrica, extending across the continent. Appar- 

 ently contined to the highlands. 



Type. — Hapaloderma, rittatum, Shelley. 



The points of distinction between this genus and Apalodermay 

 Swainson, may best be seen by the following key: 



a. Bill extremely small and slender; much compressed. 



/(. Tomia of maxilla and mandible witliout serrations posterior to subtermiual 

 notch. 



c. Three outer rectrices with bars of black and white. 



(I. Female ditlers decidedly from male ou top of head..HETEROTROGON. 

 <('. Bill large and swollen. 



h' . Tomia of maxilla and mandible with serrations posterior to subtermiual 

 notch. 



c'. Three outer rectrices white,, for their exposed portions, without bars. 

 (V . Female similar to male on top of head Apaloi)EI{MA. 



The extreme rarity of Heterotrogon vittatus in collections, and the 

 absence of information respecting the female, probably account for its 

 non separation from Apaloderma before the present time. It is unneces- 

 sary to compare this genus with Apalharpactes or Pyrotrogon* of the 

 East Indies, as they belong to a different section of the family. 



The adult female obtained by Dr. Abbott on Mount Kilima-Njaro^ 

 August 7, 1888, at an elevation of 6,000 feet (Ko. 117973, U.S.N. M.) 

 may be described as follows: Pileum Front's brown, somewhat darker 

 on lores, with a distinct coppery gloss, except on forehead; this gloss 

 most intense on sides of occiput, where it is reddish bronze; ear cov- 

 erts slightly darker, with slight greenishreflections, the feathers of nor- 

 mal length with filamentous terminations; suborbital region blackish 

 slate without metallic gloss; back, rump, and upper tail coverts metallic 

 green, quite golden bronze on back, scapulars, and rump, but plain 

 grass green on upper tail coverts. Three inner pairs of rectrices dark 



*The name Harpactes, Swainson, Class. Birds, ii, 1837, p. 337, commonly applied 

 to this genus of trogons, is preoccupied by ArpactiiH, Jurine, Hymen., 1807, and Har- 

 pades, Templeton, Arachn., 1834. Cabanis and Heine (Mus. Heiu. No. iv, part 1, 

 1863, p. 154) long ago poiuted out the untenability of the name Harpactes as used in 

 ornithology, but this fact has been quite generally ignored. Two other names, 

 having priority over Fyroirogo)), but preoccupied in other branches of zoology, are 

 Hapahirus, Eeichenbach, 1850 {nee Hapalura, Cabanis, Weigm. Arch., 1847, p. 252), 



and DuranceUii.s, Bonaparte, 1854 {nee Ducaueelia, Ris.so, [ f] 182t), und DuvauccUaf 



Desvoidy, Dipt., 1830). 



