62 
Indiana University Studies 
Plate II. 
Figure 1. Nannorhamdia guttatus Pearson. Paratype. No. 17268a, 
52 mm. Popoi River, Upper Beni. 
Figure 2. Nannorhamdia guttatus Pearson. Type. No. 17268, 110 mm. 
Popoi River, Upper Beni. 
Figure 3. Imparfinis bolivianus Pearson. Cotype. No. 17269, 66 mm. 
Huachi. 
Figure 4. Rhamdella rusbyi Pearson. Type. No. 17275, 188 mm. Rio 
Colorado, Lower Bopi. 
Figure 5. Astroblepus longiceps Pearson. Type. No. 17357, 56 mm. 
Rio Colorado, Lower Bopi. 
Figure 6. Hemibrycon beni Pearson. Cotype. No. 17321, 36 mm. 
Espia. 
