JOHNSON, HABITS OF A CLIMBING CATFISH 



331 



On clear sunshiny days, these fish may be seen in the depths of the 

 clear water hitching themselves along over the surfaces of rocks, occa- 

 sionally swimming short distances in the more quiescent places, but 

 seeming to depend for locomotion primarily upon their creeping mechan- 



Fig. 4. — Section of a pot-hole, twenty-two feet deep, in Santa Rita Creek, Colombia, 

 showing "capitanes"' ascending its rocky walls 



ism. They are to be found in all parts of these mountain streams, from 

 the most slender tributaries to the foot of the mountains. It is evident 

 from this fact that they are able to travel up stream. They are too 



