29 [ Vol. xxxviii. 
lighter grey. They are much smaller than the males of 
morio, and underneath bluish grey, not blackish. 
Hub. Tukang-Besi Islands, 8.E. of Celebes. 
Type. 9. Tomia Island, 23.xi1,1901. H. Kibn coll. 
No. 4408 (Tring Museum). (Eleven specimens examined.) 
All the three forms here described have been thought to 
be the same as /. obiense. This is certainly not the case, and 
I was chiefly led to believe in an almost impossible variation 
in females and immatures, by the bird described Nov. Zool. 
1903, p. 11 & p. 27. But that specimen, Iam now convinced, 
never came from Obi, but was wrongly labelled. It is a 
young bird and must have come from Batjan, from where we 
have a similar specimen, and belongs therefore to “‘ Hdolisoma 
amboinense melanotis” (=greyi). The error arose because 
John Waterstradt’s natives collected both on Batjan and 
Obi. 
If it was not for the very different females, one would 
consider all these and many other forms as subspecies of one 
species. At present, I think, it will be safest, and meet with 
general approval, if the forms with the females blue-grey like 
the males (the mindanense-group), those with the females 
rufous above and below and with greyish cap (the obiense- 
group), and those with females underneath whitish to rufous 
and closely barred (the morio-group), are kept as three 
species, each with one or more subspecies. To the last 
group (£. morio) belong a number of forms, including, 
I should say, amboinense. 
Mr. Cuarues Cuvuss described the following new forms of 
South-American birds :—— 
Crypturus cinnamomeus spencei, subsp. nov. 
Adult. Differs from examples of C. c. cinnamomeus from 
the type-locality, which is San Salvador, in being cinnamon- 
brown on the mantle, instead of dusky grey, in having the 
back and tail dark brown rather broadly barred with buff, 
instead of black with very narrow bars, the fore-neck dusky 
grey with rufescent bars, instead of rufescent brown with 
as 
