ERRATA 
Page 49, fifth line of paragraph: Table 30 ( p . SO) should read Table SO (p. 50). 
Pages 105, 106, 107, and 108: Richia should read Richiella. In the first impressions of this paper 
the name Richia was used for the genus, but it has since been found that this name is preempted 
by a genus of moths; accordingly it is replaced by Richiella. 
Page 177, line 22: ts should read its. 
Page 190, line 4, paragraph 3: ( p . 199) should read (p. 196). 
Page 220, line 22: Eperlanoi should read Eperlanio. 
Figure 5: The reference to Figure 4 should read Figure 7. 
Figure 6: The reference to Figure 10 should read Figure 5. 
Figure 9: The reference to Figure 12 should read Figure 8. 
Figure 10: The reference to Figures 10, 11, and 12 should read Figures 6, 8, and 9. 
Page 286, line 5: Doolitte should read Doolittle. 
Page 314, line 5, under heading “Harmfulness of smelt”: objections should read objection. 
Page 343, figure 23: The reference to Fig. 23 should read Fig. 22. 
Page 343, figure 24: The reference to Fig. 24 should read Fig. 23. 
Page 375: The 1858 reference under H. R. Storer should be under D. H. Storer on page 374. 
IV 
