PLATE IV. 



TIGOMA SQUAMATA Gill. 



Fig. I. Side view of fisb. The fmni of the lic;iil and body, size of tbe scales, and form and position of tbe fins are to 



be observed. 

 Fig. 2. The superior surface of tlie liead. 

 Fig. 3. The inferior surface of tbe bead. 

 Fig. 4. A scale from the side below the Lateral line. 

 Fig. 5. A scale from the side .above tbe lateral line. 

 Fig. C. Tbe pbarynge.al bones. 

 Fig. 7. The right pharyngeal bone, representing tbe surfaces of tbe teeth. 



The grindiug-surface of tbe teeth is not a character of generic importance in the genus Tujoma. 



