inside jaw light slate-blue as in Tympanum. Posterior border features black above white below mixed with black toward tip of caudal margin. External characters see photo of dorsal fin. Superior edge of scabrum waved with shallow crenulations from a point opposite the anus to the flexure - two well marked furrows seen in area the features at insertion - likewise look like this V / - The pleural fins are situated have their anterior ends at the highest part of the scabrum in the tip of the head between them is a deep crease or sinus. This posterior end of the opening is the widest - a crease runs beyond the end of the opening at both the ant. & post. ends. The scabrum surrounding it in which the pleural fins are situated varies greatly with height; in some animals it is very prominent but in others much less, & on slope from the median line of the top of the head in gradual like this - The widest fold ant. was on belly part at the posterior end.