00«r 



ERRATA. 



Pagx' 11 liiif 18 from t(>]i, Tlie statciiifiit concerning the acula? is ratlier to be corrected l)y wliat is said at page 



87 in dcscription of Plasmopora? reticulata. 



37 : 



■) 12 





fo 



r Subfamihj 



reud 



. Family. 



41 



6 





; 'i 



1819 





1818. 



41 



. 18 



from 



bottom :; 



macrnstiiUs 





■mairostylas. 



41 : 



. 18 







133 





135. 



54 



8 



from 



top 



1833 





1834. 



60 



5 



from 



bottom ■ 



rnter.i-t/iictti. 



s- » 



intrifcitus. 



70 : 



;■ 1:2 



from 



top 



family 





tribe. 



70 : 



. 18 







1861 





1867. 



gr. 



C 







181'.) 



» 



1818. 



The printiug of tbis memoir was commenced January 24th and tinished April 20th 1890. When the 

 tbirteenth shcet was ready to be printed, April 7th, I received a work written by Dr KlÄR, partly treating of 

 the same subjeet and tben just pnblished. 



