186 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



that an unusual amount of shrinkage and hardening of the tissues 

 had taken place in the type-specimen, thus causing the appearance 

 of plates and a ridge. In the figure the anal opening is represented 

 as located below the tip of the pectoral fin, an evident error, it being 

 close to the origin of the anal, below the eleventh dorsal spine, as 

 described. 



There is a large, oval, blackish spot just above the gill opening, 

 conspicuous in light-colored examples, but not so plainly seen in the 

 darker ones. The pectorals, anal, and caudal are broadly edged 

 with white, the light color being made prominent by a subterminal 

 blackish band. 



