LIST OF ERRATA. 



Page 56, seventh lino from top, for " XII " read " VIII ". 



Page 62, fifth liue from top, for " mijlilloidcs " read " mytiloidcs ". 



Page 103, fifth and eleventh lines from top, for "pectenata " read " pcdinata". 



Pago 165, seventeenth ljne from top, for "Acathocardia" read "Acanthoeardia ". 



Page 260, third line from top, for " in condition " read " in a condition ". 



Page 324, eighteenth line from top, for "deferent " read " different". 



Page 327, eighth line from top, for " Iwvisucula" read " la-viuscula". 



Page 337, eighth line from hottom, after " campanellce" read " d'Orb." 



Page 497, second line from top, for " Obignyamis" read " OrUgnyanus" . 



Page 501, second line from bottom, for " phrogmacoue " read " phragtnocone". 



Page 533, ninth line from hottom, before " all the other forms " read " nearly ". 



Page 556, at end of sixteenth line from top, omit "existing", and read " existing" before "mollusks" 



at beginning of eighteenth line. 

 Page 566, fourteenth line from top, after " Fossils " omit "of N. Am." 

 Page 582, eleventh line from top, for " Fulotoma" read " Tulotoma ". 

 Page 598, ninth line from top, for " Limriea " read " Limncca ". 

 Page 603, fourteenth line from top, for "Anisam " read "Anisus ".. 



