568 PROCEEDINGS OF THE ACADEMY OF [Oct., 



little smaller or more crowded. On sides of body scales disposed in 

 longitudinal series parallel with 1. 1. Caudal base scaly. A few 

 small scales along anal base in front. Ventral with short, free, pointed 

 axillary scaly flap. L. 1. complete, nearly straight, and median 

 along side of body. Tubes simple, extend well over scale exposures 

 or to their hind edges. 



Dorsal origin a little nearer snout tip than caudal base, first 

 branched ray longest and reaches back If to caudal base. Adipose 

 fin moderate, about equals eye in length, and its origin near last 

 third in space between dorsal origin and caudal base. Caudal well 

 forked, pointed lobes equal. Anal inserted a little behind dorsal 

 origin, first branched ray longest where it forms slight lobe with 

 anterior rays. Pectoral low, upper rays longest, and extends back 

 slightly beyond origin of ventral. Ventral inserted a little nearer 

 pectoral origin than anal, and fin pointed, extending back slightly 

 beyond anal origin. Vent close before anal. 



Color in alcohol pale brownish generally, scarcely paler below. 

 Back and sides sprinkled with minute pale dusky dots, becoming 

 larger and less closer on caudal base, though no distinct caudal or 

 shoulder spots formed. Head brownish above, paler below. Iris 

 slaty Fins all pale, though origin of adipose fin with dusky dots 

 basally and in front. 



Length 40 mm. 



Type, No. 39,307, A. N. S. P. Madeira River, about 200 miles 

 east of W. Long. 60° 20', Brazil. September, 1912. Edgar A. 

 Smith. 



Only the type known. It is interesting as forming, with the 

 following species, a transition, towards Cyrtocharax, which embraces 

 species with very small scales, 100 or more in the 1. 1. 



{Sardinha, the native name.) 



Charax goeldii sp. nov. Fig. 22. 



Head 2|; depth 2|; D. ii, 9; A. iv, 41, i; P. i, 15; V. i, 7; scales 

 81 in 1. 1. to caudal base and 6 more on latter; about 18 scales above 

 1. 1.; 18 scales below 1. 1. to ventral origin; 19 scales below 1. 1. to anal 

 origin; about 31 predorsal scales to occipital process; head width 

 2| in its length; head depth at occiput If; snout 3|; eye 3|; max- 

 illary 1|; interorbital 4; first branched dorsal ray 1^; first branched 

 anal ray 1|; least depth of caudal peduncle 3|; lower caudal lobe 

 Ij; pectoral If; ventral 2|. 



Body well compressed, elongate, rather slenderly ovoid in contour, 

 and lower profile a little more evenly convex than upper, greatest 



