Eigenmann. — new species of Chilian fishes 
53 
ON /i NEW SPECIES OF HfiTCttERIfi 
anO a new jpccicj of PyfiDium. 
BY 
Carl H. EIGENnANN. 
(University of Indiana) 
On March 2, 1919, I collected fishes in the lower 
course of the Eio Nongen where it passes through the 
grounds of the Agricultural School, at the outskirts of 
Concepción. The fish fauna at this point is quitti rich and 
varied for Chile. Among other things I secured a large 
number of a small catfish: 
Hatcheria Maldonadoi, sp. nov. 
Head 5 in the lenght; depth 7.5; D. 15 (13) A. 9. 
Heavy at head, tapering to a slender, subcylindrical 
caudal peduncle. Outher maxillary barbel extending to 
the first interopercular spines, nasal barbel reaching to 
midway between posterior nares and eye; depth of caudal 
peduncle 3.5 in the length of the head; width of head 
little less than its length; teeth conical, in narrow bands. 
Origin of dorsal about midway between snout and 
base or middle of caudal, its base equal to, or greater 
than, the length of the head; last anal ray under a little 
in advance of the last dorsal ray, its distance from the 
caudal about 3.5 in the lenth; caudal slightly emarginate; 
origin of ventrals about midway between snout and middle 
of caudal peduncle; width of caudal peduncle one-half to 
two-thirds its depth; pectoral without a filament. 
A series of distinct quadrate, black spots on a yellow 
