ERRATA. 
Page 4, line 10 from bottom, and elsewhere—for Lamark, read Lawarck. 
7 
9 
bed 
99 
” 
” 
38, line 18 from bottom—for Diplommantina, read Diplommatina. 
$1, line 20 from bottom—for Monguin-Tandon, read Moquin-Tandon. 
85, line 4 from top—for Vernetus, read Vermetus. 
125, line 5 from bottom—for Handcock, read Hancock. 
139, line 19 from top—for Lutariine, read Lutrariine. 
155, line 2 from bottom—L. lactea. 
lowed L. divaricata. 
This is a Lucina and should have fol- 
