38 Annals of the Carnegie Museum. 



Cotypes, 12 specimens, 33-47 mm. Crab Falls. (C. M. Cat. 

 No. 1 149, a-b\ I. U. Cat. No. 11678.) 



Cotypes, 13 specimens, 31-60 mm. Amatuk. (C. M. Cat. No. 

 1150, a-d ; I. U. Cat. No. 11679.) 



Resembling Etheostoma coeruleum. 



Head 3.75-4; depth 4.5-4.75 ; D. 11 ; A. 8 ; scales 4-32 to 34- 

 2 ; seven median scales anterior to the dorsal ; eye 1.1 in snout, 3.75 

 in head; bony interorbital .5 diameter of eye. Teeth three-pointed, 

 the middle point longest. 



Pectorals with the tips of the outer rays thickened, reaching ventrals, 

 ventrals to anal ; third anal ray reaching fulcra of the caudal, but 

 scarcely beyond the tip of the last ray. Base of dorsal about 1.2 in 

 its distance from the adipose fin, 5.5 in the length ; third dorsal ray 

 reaching base of the last. 



Adult nearly uniform blue-black, the ventral surface being but little 

 lighter. Margin of adipose and caudal, outer edges of ventrals and 

 pectorals white. Dorsal, caudal, anal, and ventrals conspicuously 

 barred with white and black. Pectorals, exclusive of the tips of the 

 outer four rays, bluish-black. 



Younger specimens and lighter colored ones show about seven cross- 

 bands and more or less incomplete rows of light spots following the 

 rows of scales. A dark band forward from eye ; a narrower one 

 downward. In the youngest specimen from Amatuk the pectoral, 

 like the ventral and anal, has four dark bands. 15 



Characidium zebra sp. nov. 



Type, 52.5 mm. to base of caudal. (No. 1151 Carnegie Museum 

 Catalog of Fishes.) Maripicru, a branch of the Ireng. 



Cotypes, 6 specimens, 47-55 mm. Maripicru. (C. M. Cat. No. 

 1152,^-^; I. U. Cat. No. 11680.) 



Cotypes, 14 specimens, 32-44 mm. Maripicru? (C. M. Cat. No. 

 1159; I. U. Cat. No. 11687.) 



Closely allied to C. fasciatum. 



Head 4.25-4.5 ; depth 5-5.3 ; D. 11 ; A. 7 or 8 ; scales 4-35 or 

 36-33^ ; 9 scales before the dorsal. Eye equals snout, 3.75-4 in the 

 head; bony interorbital 1.3-1.5 in the eye. Teeth three-pointed, 

 the middle point longest. 



15 A smaller specimen from this place, 23 mm. long, has a single band on the pec- 

 torals and the ventrals. It is crushed and I am not certain of its identification. 



