536 



PROCEEDINGS OF THE ACADEMY OF 



[Oct., 



preopercle edge vertical. Opercle smooth, deep, upper posterior 

 margin slightly emarginate. Occipital fontanel well developed, 

 from between frontals posteriorly to occipital process. Latter short, 

 forms nearly equilateral triangle. 



Gill-opening extends forward but slightly behind front edge of 

 eye, before that of pupil. Rakers about 5 + 12, slender, elongately 

 lanceolate, a little longer than filaments, or about 1| in eye. Isthmus 

 narrowly constricted in front, elongate, surface anteriorly with 

 groove and posteriorly convex. Branchiostegals moderate, subequal. 



Scales moderately small, well exposed in longitudinal series, 



Fig. 9. — Prionohrama madeirce Fowler. (Type.) 



cycloid, of nearly uniform size. Caudal scaled basally. Anal with 

 basal scaly sheath to greater anterior portion of fin. Free pointed 

 axillary ventral scaly flap nearly I length of fin. L. 1. incomplete, 

 begins at. shoulder and extends over only ten consecutive scales. 

 Tubes simple, and each only about half way over scale exposure 

 anteriorly. 



Dorsal origin about midway between eye centre and caudal base, 

 first branched ray longest, and depressed fin extends If to caudal 

 base. Adipose fin slender, a little shorter than eye, inserted about 

 last 7 in space between dorsal origin and caudal base. Anal origin 

 opposite that of dorsal, third simple ray prolonged into a filament 



