COREIGENDA. 



In Plate I. for fig. 6 read fig. 9, and for fig. 9 read fig. 6. The description of 

 the figures in p. 57 will then be correct. 



In the Rev. R. Boog Watson's paper on Cerithiopsides, the Author desires that 

 0. coNCATBNATA, Corti, Foss. de Monte Mario, pp. 32, 51, be substituted 

 for " C. Jeffeeysi, Wats.," in page 90, thirteenth line from bottom. Also 

 that in Plate IV. fig. 2, concatenata be substituted for Jeffreysi, and for 

 " pulchella, Jefir.," in the description of figs, 2, 2 a of same Plate at 

 page 95, eighth line from top. 



