118 ERRATA. 



Page 95, For Pcecilozonites Sandberger, read Pcecilozonites Boett- 

 ger. 



Page 119, Read after H. lens, pi. 24, f. 12-14. 



Page 138, For microformis Dall, read microforis Dall. 



Page 148, After H. elerata read PL 31 , figs. 57-59. 



Page 158, For H.fimibriosa read fimbriosa. 



Page 208, For H. lutosa read lutuosa. 



Page 219, After H. hilgendorffi read PI. 51, figs. 58, 59. 



Page 239, For H. sitisiensis read sitifensis. 



Page 242, For H. amorlcana read armoricana. 



VOLUME IV. 



Page 17, After H. meda read PI. 3, fig. 30. 

 Page 17, For H. florentincs read florentice. 

 Page 30, For H. sequentina read sequentiana. 

 Page 89, For lefeboriana read lefeburiana. 

 Page 88, For paucici read pancici. 

 Page 101, After v. insubrica read pi. 24, figs. 28, etc. 

 Page 110, For H. shaufussi read schaufussi. 

 Page 110, After H. zonella, dele PI. 48, figs. 92, 93, and read un- 

 figured. 



Page 116, After H. leda, dele PI. 32, fig. 39, and read unfigured. 



Page 127, For hemprichtii read hemprichii. 



Page 132, After H. tingitana dele PI. 64, f. 1-3, and read unfigured. 



Page 140, For H. odopacha read odopachya. 



Page 142, For H. dastaguiread dastugui. 



Page 155, H. riprochi read ripochi. 



Page 177, H. guadryi read gaudryi. 



Page 186, After H. digna read PI. 63, fig. 38. 



VOLUME V. 



Page 26, For H. costantior read constantior. 



Page 38, Line 17 from top, for H. fuscolabris read fuscocincta. 



Page 41, Top line, for nemor hides read nemoraloides. 



Page 44, Line 12 from top, for dtep narrow color read deep ma- 

 roon color. 



Page 65, Line 17 from top, for periphery read peristome. 



Page 67, After H. trinitaria read PI. 17, figs. 38-40,42,43. 



