ERRATA. 



Page 219, line 29, for 1-4 read 104. 

 " 6, for 1-2 " 1-02. 

 " 80, for 12 " 1-02. 

 " 10, for 1.1 " 1-01. 

 ; ' 20, for ■' about " read " above." 

 " 2, for " semigranulata " read " semigranulosa." 

 " 13, for " semigranata " read " semigranulosa." 

 " 21, for 1-8 read 1-08, 

 " 20, for " elevata " read " elevata." 

 " 3, and 20, for " plicata " read " plicatis." 

 Plate 12, fig. 235, for " trinaeris" read " trinacrus." 

 " 35, fig. 79, for " erenatula " read " crenatella." 

 " 36, fig. 112, for "Florencese" read " Florencense." 

 " 37, fig. 147. for " Spartenbergensis " read " Spartanbergensis." 



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