258 CLAP p. 



EXPLANATION OF PLATE XVIL 



Fig. I. Side view of head of Batraclius tau, one year old. X 6. Showing 

 the appearance of the lines of sense organs in the adult, also the position of the 

 paired flaps and other projections of the skin on the head. 



Fig. 2. Dorsal view of same, x 6. 



Fig. 3. Ventral view of same. X 6. 



Fig. 4. Dorsal view of skull. Natural size. 



Fig. 5. Ventral view of mandible. Natural size. The grooves show the 

 position of the lateral line organs. 



In Fig. 4, ioi JR read FK. 



