S TRIG ID#. 
Otus vandewateri (Rob. and Kloss). 1 * Vandewater’s Scops Owl. 
Pis or kin a vandewateri Robinson and Kloss, Jotirn, Strs. Br. Roy. 
Asiat. Soc. Ixxiii, 1916, p. 275 ; Korinchi Peak, Sumatra. 
Distr. — Sumatra. 
Otus umbra (Richm.J. 3 4 Barussan Scops Owl, 
* Otus umbra umbra Rich ill, 
Pisorhina umbra Richmond, Proc. U.S, Nat. Mus. xxvi, 1903, p. 
494 : Simalur Island, West Sumatra, 
Distr. — Simalur Island, West Sumatra. 
*Otiia umbra enganemls Riley. 
Otus umbra engauensis Riley, Proc, Biol. Soc. Wash, xl, 1927, p. 
93 : Engano Island, West Sumatra. 
Distr. — Engano Island, West Sumatra. 
Otus bakkamoena (Penn.K Collared Scops Owl. 
[Otus bakkamoena bakkamoena {Penn.}. 
Otus Bakkamoena Pennant, Ind. Zool. 1769, p, 3, pi. 3 : Ceylon, 
Distr . — Extradimital . ] 
Otus bakkamoena condorensia Kloss. 
Otus bakkamoena condorensts Kloss, Journ, Siam Soc., Nat. Hist. 
Suppl. viii, 1930, p. Sx : Condore Island. 
Distr . — Peninsular Siam. 
Otus bakkamoena tempi ji (Horsf.), 
Lempiji Horsfield, Trans. Linn. Soc. xiii, 1S21, p. 140 : Java, 
Scop javanicus Less., Traits d r Om. 1830, p. 107 : Java, 
Slrtx noctula Tenim., PI. Col. 99, 1S21 : Java, Sumatra, Banda, 
Distr. — Malay Peninsula. 
Sumatra; Banka; Billiton. 
Borneo; North Natuna Islands. 
Java; Bali; Kangean Islands.' 1 
Otus bakkamoena mentawi Chas, and Kloss, 
Otus bakkamoena mentawi Chasen and Kloss, Ibis, 1926, p, 279 : 
Sipora Island, West Sumatra. 
Distr. — Sibemt and Sipora Islands, Mentawi Group, West Sumatra. 3 
1 Stresemann places this owl as a synonym of 0 . spilocepkaius lucim 
( =stresemanni Rob.), but we are not yet convinced, 
3 Can almost certainly be lumped with one of the other more widely 
spread Malaysian species, but as we have not seen either umbra or enganensis 
we cannot attempt a wider nomenclature. 
1 A small owl, possibly this form, also occurs in the Pagi Islands, 
Mentawi Group. 
4 The Kangean form is possibly separable : Robinson seemed to think 
that a Bornean race was separable, but we cannot see any peculiarity in ten 
specimens from Sarawak. 
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