198 



MK. A. H. GARROD ON THE 



[Feb. 1 . 



Fig. 1. 



Fig. 3. 



Fig. 4. 



Fig. 2. 



Fig. 1. Chauna derbiana. Back view of skull. 



Fig. 2. Chlo'ephaga magellanira. Back view of skull. 



Fig. 3. Mitua tvherosa. Back view of skull. 



Fig. 4. Chauna derbiana. Base of skull. 



