Key to the Species. 
A. Facial wattles small, hind-neck, collar, and 
sides of breast black . . . . . . . . L. Twvoe-hollandicey p. 44. 
B. Facial wattles large, hind-neck, collar, and 
sides of breast white. 
a. Larger and darker . . . . . . L. 7niles harterti, p. 55. 
h. Smaller and lighter . . . . . . L. unties personahis, p. 52. 
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