146 TRERONID^. 



a, b, c. tf 2 ad - Sanghir Isl. (A. B. Meyer). Tweeddale Coll. 



sk. 



d, e. $ $ ad. sk. Sanghir Isl. (A. B. Meyer). Salvin-Godman Coll. 



/. d ad. sk. Siao, Sanghir Isl., Oct. (Hoedt). Tweeddale Coll. 



u. IoNOTRERON. „ 



r Type. 



Jotreron, Bp. Consp. Ar. ii. p. 24 (1854) ; id. Compt. 



Bend, xxxix. p. 678 (1854) P. ionogaster. 



Iotreron, Bp. Icon. Big., Introd. p. 8 (1857). 

 Ionotreron, Bchb. Tauben, i. p. 99 (1862). 



Range. Moluccas and Papuan Islands from Bouru to the Solomon 

 Islands. 



Key to the Species. 



a. A purple-red patch either on the crop-regbn 



or on the ahdornen. 



a'. Purple-red patch on the abdomen ; under 



tail-coverts bright yellow. 



a". Smallest of all the Treronidce ; wing 



35 inches: wings banded with yellow; 



a grey band on each side of the upper 



breast nanus tf , p. 147. 



b". Larger ; wing 5 - 25 inches : head 



entirely grey ionogaster tf $ , p. 148. 



b'. Purple-red patch on the throat and crop- 

 region ; under tail-coverts pale yellow, 

 green on the inner webs, 

 c". A small purple-red patch in the middle 



of crop-region pectoralis <$ , p. 149. 



d". lied patch on the crop broad, but not 

 extended to the throat, which has a 

 golden tinge; smaller upper wing- 

 coverts with grey spots salvadorii J , p 150. 



e". A broad purple-red patch covering the 

 throat and crop-region. 

 a"'. Anterior part of the head grey. 

 « 4 . Purple-red patch not surrounded 

 by a dark purple line. 



a 5 . Purple-red patch darker viridis <J $ , p. 151. 



b s . Purple-red patch brighter musschenbrotki 3 $ , 



b\ Purple-red patch surrounded by a [p. 152. 



dark purple line lewisii d 5 , p. 153. 



b'". Head white ; purple-red patch sur- 

 rounded by a dark purple line .... eugenics tf $ , p. 153. 

 b. No purple-red patch either on the crop- 

 region or on the abdomen, 

 c'. Very small ; wing 3 - 5 : under tail-coverts 



bright yellow nanus J , p. 147. 



d'. Under tail-coverts pale yellow, green on 

 the inner webs. 



/". Tertials with grey spots pectoralis £ , p. 149. 



a". Tertials uniform trreen musschenbroeki 2 , 



[p. 152. 



