468 CALIFORNIA ACADEMY OF SCIENCES. 



Pectoral spine smooth on its outer margin and sides, 

 with short blunt teeth on the center of its inner edge, 

 sometimes obsolete or sometimes fine, pointed teeth to- 

 ward the tip; pectoral spine longer than the dorsal spine, 

 about 3 in the length. 



Sides dark brown to the humeral process, this color 

 becoming almost black where it meets across the occi- 

 pital process forming an acute angle on the posterior 

 portion of the occipital bone; the dorsal plate and thence 

 a narrow area backward to the caudal fin light brown; a 

 yellow band meets across the fontanel, broadening as it 

 extends downward across the humeral process whence it 

 merges into the light ventral color; interorbital, cheeks 

 and snout punctate with brown, sometimes forming a 

 somewhat darker streak through cheeks and eyes; ven- 

 trals yellow; other fins more or less punctate with 

 brown. 



The ? differs in having the suborbital bone much nar- 

 rower, less than the orbital diam. leaving a naked area 

 below, the tip of the snout more pointed, the dorsal and 

 pectoral spines shorter, the coracoid processes meeting 

 evenly throughout most of their length. The color like- 

 wise differs; the dark brown lateral band being much 

 narrower, not extending to the lateral line, leaving the 

 lower series of scutes wholly light colored. 



Head3|-3f; depth 2|-3; D. I, 8; A. I, 7; V.I, 5. Lat. 



Fourteen specimens. Cudajas; Thayer & Bourget. 

 457. Corydoras splendens. 



Callichthys sjilende.ns Castelnau, Anim. de I'Amer. du Sud, 39, pl. 18,. 



fig. 3 (Eio Tocantius). 

 Corydoras splendens Eigenm. & Eigenm. Proc. Cal Acad. 2d Ser. i, 



165, 1888 (name only). 

 Habitat: Rio TocantinH. 



This species is known only from the description and 

 figure of Castelnau. 



