214 Mr. C. T. Rcfran— J Bevision 



head 3. Snout 1| to nearly 2 in the length of head, diameter 

 of eye 5, interorbital width 2. Barbels reachinor o-iU-opeiiing-. 

 Dorsal I 8 ; height of fin If to 1^ in depth of body ; base 

 equal to distance from adipose fin, wliich is preceded by 2 

 median scutes. Anal I 6. Scutes 22/20. Head, body, and 

 fins with numerous small dark spots. 



Rio Preto, Bahia. 



Total length 44 mm. 



9. Corydorasjidii. 

 Steind. Anz. Akad. Wien, 1906, p. 480. 



Depth of body 2\ to 2| in the length, length of head 3 to 3^. 

 Snout 2 in length of head, diameter of eye 4, interorbital width 

 2. Barbels not reaching gill-opening. Dorsal I 8; spine a 

 little shorter than that of pectoral, which is as long as head ; 

 3 median scutes before adipose fin. Anal I 6. Scutes 21/20. 

 Head, upper | of body, dorsal and caudal fins -with numerous 

 small dark spots, those on the caudal forming 7 to 10 trans- 

 verse series. A lateral series of h^rger spots and a large 

 black spot on upper part of dorsal fin. 



R. Parahim. 



Total length 52 mm. 



10. Corydoras elegans. 



Steind. Sitzungsb. Akad. Wien, Ixxiv. 1876, p. 471 ; Eigeum. & Eigenm. 

 Occ. Pap. Calif. Acad. i. 1890, p. 469. 



Depth of body 2§ in the length, length of head 3^ to 4. 

 Snout as long as or a little longer than postorbital part of 

 head ; diameter of eye 3J^ to 3^ in the length of head, inter- 

 orbital width 2. Suborbital narrow ; barbel extending to 

 gill-opening; breadth of operculum more than ^ its depth. 

 Dorsal I 7 ; spine as long as or a little shorter than liead ; 

 rays decreasing from first or second, wliich are longer than 

 spine; free edge straight or slightly convex; base about 

 equal to distance from adipose fin, which is preceded by 2 or 

 3 median scutes. Anal I 6. Pectoral spine as long as head, 

 extending beyond base of pelvics. Scutes 22-23, 20 ; humeral 

 shields not in contact, each separated by 1 or 1^ scutes from 

 base of pelvic fin. Yellowish ; 3 series of brownish spots 

 along middle of side ; above them a brown band tapering 

 posteriorly and a narrow band on each side of back ; dorsal 

 blackish superiorly; other fins immaculate. 

 Amazon (C^idajas and Teffe). 



1_(3. 40-50 mm. Cudajas. . Mus. Comp. Zool. 



