266 PROCEEDINGS OF THE ACADEMY OF [Apr., 



Body everywhere minutely spinulose. Scutes on back slightly 

 carinate, and lateral series obsoletely so anteriorly. None of scutes 

 carinate below adipose fin. Six scutes between dorsal and adipose 

 fin. Occipital process bordered only by median scute behind. 

 Edge of gill-opening bordered with slightly enlarged spinules. Lower 

 surface of head and abdomen covered with small granular scales, 

 all densely and minutely spinulose. Fin spines all spinulose, those 

 on outer edges of pectoral and ventral larger and form rather regular 

 rows more pronounced terminally. Outer surfaces of fin rays 

 minutely spinulose. L. 1. evident as simple small pores extending 

 back, one in each suture, between scutes forming series from median 

 hind edge of opercle. 



Dorsal origin nearly midway between snout tip and origin of 

 adipose fin, and depressed spine (damaged) apparently moderate. 

 Adipose fin with strongly compressed large bent spine, If to caudal 

 base, and inserted little behind last third in space between dorsal 

 origin and caudal base. Anal inserted slightly before hind edge of 

 dorsal base, or about midway between pectoral axil and caudal 

 base, depressed fin extending 2^ to latter. Caudal moderate 

 (damaged), well emarginate' behind ? and lower lobe longer. Pec- 

 toral spine large, compressed, reaches about ly to anal origin. Ven- 

 tral inserted close behind dorsal spine base, spine long, tapers to 

 rather flexible point which extends back opposite hind anal ray base. 

 Vent at last fifth in space between ventral and anal origins. 



Color in alcohol brown above, paler or more or less whitish below, 

 faded with creamy tints. Iris slaty, pupil darker. Head above 

 rather finely spotted with pale dusky, spots closer, smaller and more 

 numerous on muzzle, interorbital and cheek. Back and costal 

 region marked with similar colored, though larger, spots and seldom 

 more than one on a scute. Belly and lower surfaces of trunk with 

 similar, though much more obscure, spots, mostly of very dull brown 

 in tint. Fins all dull or pale brownish, and all spotted with darker. 

 Dorsal with large dusky spots on membranes, usually a single row 

 Avhich may occasionally be slightly irregular on each. On front edge 

 of dorsal spine series of small inconspicuous pale dusky spots. Caudal 

 with median hind portion dusky, and with several obsolete transverse 

 streaks. Membranes of pectoral and ventral with spots similar 

 to those on dorsal, only smaller. Anal membranes with several dusky 

 dots, also adipose fin. 



Length 116 mm. (caudal tips damaged). 



Type, No. 39,930, A. N. S. P. Rio Jaguribe at Barro Alto, Brazil. 

 November, 1913. Mr. C. F. Derby. 



