44 



Colouration in Animals and Plants. 



Fig. 1. Part of secondary feather of Argus Pheasant. 



a. a. Elongated spots, incipient d. d. Double spots, incipient ocelli. 



ocelli. e. Minute dottings. 



6. Interspaces. f. f. Shaft. 



c. c. Axial line. k. k. Line of feathering. 



Fig. 2. Part of secondary wing feather of Argus Pheasant. 



a. Oval. Axis at right angles. e. Expansion of stripe. 



b. Round. f. Interspace. 

 c.c. Shaft, ' g . Stalk. 



d. Imperfect ocellus. h. Edge of feather. 



/. Line of feathering. 



