26 



ing them together again, (les sondes entrUles de nou- 

 veau). Some species are armed with spines on the ex- 

 terior, which La Marck has not mentioned. 



Balanus angulosus 



Balanus palmatus 



sulcatus 



stalactiferus 



tintinnabulum 



plicatus 



nigrescens 



duploconus 



cylindraceus 



patellaris 



calycularis 



semiplicatus 



roseus 



galeatus 



ovularis 



subimbricatus 



miser 



rugosus 



amphimorphus 



plancianus 



perforatus 



crispatus 



laevis 



punctatus 



spmosus 



fistulosus 



radiatus 



latus. 





kJUtt ACASTA. 



,*Jpjl.' \r\sTv montagi ii. — Leach. 



Cirrip. Acampt. plate f. 

 The species constituting this genus wore named by 

 Dt Leach, Acastae, and continue to be so called by La 



