lO 



Aplonis opaca barterti, subsp, nov. 

 (Eulabetidae). 



A. ktltlltzi (nee Finsch & Hartl.), Oustalet, Nouv. Archiv. Mus., 1895, p. 213 (part.); 

 Hartert, Nov. ZooL, Vol. v, 1898, pp. 58, 69 (part.); Kuroda, " Dobutsugaku Zasshi "( = 

 Tokio Zool. Mag.), Vol. vii, 19 '5, pp. 330, 332 (part.) ; Takatsukasa & Kuroda, " Tori," 

 Vol. i. No. 2, 1915, p. 64 (part.) ; A. kiltlitzi kurodai. Momiyama, op. cit.. Vol. ii, No. 9, 

 1920, p. I (part.). 



-^ ad. — Similar to A. o. anga from Ruk group, but distingiu- 

 shable from it by the bronzy-green lustre of the upper jiarts being 

 somewhat less distinct and by the bill being much thicker. It differs 

 from typical opaca by the &(\^<t of feathers of the under parts being 

 somewhat more deeply tinged with bronzy-green, by the green 

 lustre of the upper parts being rather distinct, and aKo by the bill 

 being thicker. It differs from A. o. kurodai Momiyama from Yap 

 islands, by the green lustre on both sides of body being less distinct 

 and showing tendency to be a purplish lustre, by the bill being 

 dicidedly shorter, and by the same thickness. It differs from A. o. 

 guainiixova Guam island, by the bill and wing being distinctly longer. 



Type. — Adult male. Saipan island, one of the Marianne chain. 

 May 5, 1919. Momiyama's coll. no. 18. 



Habitat. — Saipan, Marianne islands. 



Measurements. 



* indicates tiie type specimen. 



