420 DR. GUILLEMARD ON BIRDS OF THE ' MARCHESA.' [Apr. 21, 



23*0 centims. These examples are not separable from Sulu skins 

 excepting as regards size. The following measurements (in centims.) 

 seem to show that the greater dimensions of the former are tolerably 

 constant : — 



Cagayan Sulu, d 11 



12. Carpophaga picKERiNGi, Cassin. 



a-e. S . 



/• ?• 

 Iris dull red ; bill bluish-green ; feet and tarsus dull red. 



Length 42 0-44-5 centims. ; wing 22-8-25"l centims. ; tail 16"0-17*5 

 centims. ; culmen 2'0-2'l centims. ; tarsus about 3*0 centims. Sexes 

 alike. 



These examples correspond with an individual of this species 

 obtained iu Sulu Island during the visit of the ' Marchesa ' to that 

 Archipelago. There is but little individual variation in the series ; 

 but in so.:.e the iridescent colour of the tail inclines rather to blue 

 than green. This Pigeon was apparently abundant in the neighbour- 

 hood of the crater-lakes. 



13. Strepsilas interpres, Linnaeus. 



«. 2. 



Iris brown ; bill bluish-black ; feet bright orange-red. 



14. Tringoides hypoleucus, Linnseus. 



Iris brown ; bill brownish black ; feet very dark olive. It is 

 singular to observe how the habits of birds are adapted to circum- 

 stances. Both this and the preceding species perch on the 

 mangroves, not on the trunks only, but in the branches. A small 

 island near Tanjong Tavo-tavo, if indeed the word island can be 

 applied to a collection of mangrove trees springing from the water, 

 was the invariable resort of a large quantity of whimbrel, whose 

 favourite perch seemed always to be upon the highest boughs. 



15. Demiegretta SACRA, Gmelin. 



a. (S . 



Iris chrome-yellow ; tarsus olive, with black patches on the 

 anteriur aspect ; feet with under surface bright yellow. 



