VOL. XVIII, PP. 241-242 DECEMBER 9, 1905 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW SPECIES OF FISHES FROM BRAZIL. 

 BY SETH EUGENE MEEK. 



Pimelodella eigenmanni sp. nov. 



Type from Sao Paulo, Brazil. No. 4,000, Field Columbian Museum. 



Length, 101.5 mm.; head, 4.25; depth, 4.35 ; D. 1-6; A. 8. 



Body elongate, not much compressed; head little depressed, its upper 

 surface smooth, snout narrow, pointed ; mouth small ; jaws equal ; teeth in 

 villiform bands in each jaw ; eye small, 5.00 in head ; snout, 2.75 ; inter- 

 orbital 4.80 ; distance from snout to base of dorsal fin 3.90 in body ; dorsal 

 spine with inner margin nearly smooth, its length 1.00 in head, pectoral 

 spine 1.70, dentate on proximal half of its inner margin ; adipose fin 3.90 

 in length of body ; anal fin short, its base 2.20 in head ; maxillary barbel 

 moderate, its tip reaching base of ventrals ; longest mental barbel reaching 

 base of ventrals ; least depth of caudal peduncle 2.60 in head ; caudal fin 

 forked, its upper lobe the longer. 



Color olivaceous, sides with a narrow bluish band, a dark blotch on 

 middle of anterior portion of dorsal fin. 



Named for Dr. C. H. Eigenmann, who, more than any one else, has 

 studied South American catfishes. 



Anisotrema williamsi sp. nov. 



Type from Santos, Brazil. No. 3,350, Field Columbian Museum. 



Length, 248 mm.; head, 3.20; depth, 3.15; D.XI-I, II; A. Ill, 7; scales, 

 6-48-11. 



Body elongate, compressed, the dorsal region not much elevated ; profile 

 slightly convex ; snout pointed ; the upper jaw slightly the longer ; eye 

 rather large, its diameter 3.56 in head ; mouth rather small, end of maxil 

 lary, reaching vertically from anterior margin of orbit ; teeth in jaws in 

 51 P ROC. BIOL. Soc. WASH., VOL. XVIII, 1905. (241) 



