University of Michigan 



PLATE I. 



Figure i. Male, taken during spawning. x->4. (Photographed in 

 life.) 



Figure 2. Female, dorsal surface, x^. (Photographed in life.) 

 Note that the expanded buccal disc is not greater in diameter than the 

 width of body. 



Figure 3. Female, taken during spawning. x-)4. (Photographed 

 in life.) 



Figure 4. Posterior portion of a larva, to show fin outline, xl. 



