120 



PROCEEDINGS OF THE ACADEMY OF 



[March, 



almost entirely scaled over most of basal regions which form sheaths 

 for spinous dorsal and anal and also rayed dorsal and anal at least 

 anteriorly. Only ends of caudal lobes naked. Scales on bases of these 

 fins also small and crowded. Base of pectoral scaly. Ventral with 

 innermost ray united to abdomen by a membrane and both fins de- 

 pressible in a groove. Lateral line cm-ved similarly with profile of 

 back, also approaching it more closely posteriorly, and extending a 

 little above middle of side of caudal peduncle. Lateral line not 

 extending on base of caudal and tubes simple. 



Spinous dorsal inserted a trifle in advance of origin of pectoral, 

 spines flexible, and graduated to foiuth which is longest. Soft dorsal 



Fig. 3. — Psenes chapmani Fowler. 



inserted a little nearer tip of snout than base of caudal or about over 

 middle of pectoral, and fin a little higher anteriorly. Anal similar, 

 spines graduated to third which is longest, and rayed fin inserted per- 

 haps a trifle in advance of rayed dorsal. Caudal forked, lobes rather 

 long and pointed. Pectoral broad, hardly reaching half way to tip 

 of last anal ray. Ventral inserted a little behind origin of pectoral, 

 and reaching second anal spine. Anus in ventral groove before tip of 

 ventral fin. 



