198 ADDENDA. 



E. COLUMBELLA, Menke, occurs on the California Coast northward 



to Monterey. 

 E. VITELLINA, Hinds, has been found northward to within 50 



miles south of San Francisco Bay. 

 MARGINELLA SUBTRJGONA, Carp., extends northward to Monterey, 



Gal. 



MARGINELLA LKEBBECKEANA, Weink., is a larger individual of 

 Gryptospira glauca, Jouss. 



M. MEDIOCINCTA, Smith. Volvarina JBouvieri,Jouss.,is a synonym. 

 M. (GRANULA) SPIRIPLANA, Jousseaume, 1882. 



Shell small, conical, thin, smooth, shining white ; whorls three, 

 plane above ; aperture elongate, columella scarcely thickened, 

 five-plicate, lip thickened. L. 1-7 mill., diam. 1-4 mill. 



Found in the mass of filaments surrounding the base of 

 Euplectella. 



Related to Granula Angasi. 



M. OBLONGA (p. 32). Figured in error, t. 9, f. 77, for M. olivella. 



OLIVIDJE. 

 OLIVELLA AUSTRALIS, Tenison-Woods (p. 72). 



Shell turreted, fusiform, spire produced and equalling the 

 aperture ; smooth, shining, white, reticulated with fulvous brown, 

 and zoned with three white bands ; suture scarcely impressed ; 

 aperture narrow', anteriorly dilated ; outer lip thin, acute, colu- 

 mella simple. 



Tasmania. 

 COLUMBELIJDJS. 



C. MILLEPUNCTATA, Carp. (p. 115), is figured PI. 63, fig. 68. 



C. ALABASTRUM, Reeve (p. 146). Add reference, PI. 52, fig. 87. 



C. SUFFUSA, Sowb. (p. 155). Add reference, PI. 55, fig. 50. 



C. NIGRICOSTATA, E. A. Smith (p. 155). The figure referred to 



does not represent this species, but G. suff'uxa. 

 C. ROSACEA, Gould. PI. 56, fig. 78, represents this species, but 



fig. 79 is G. costulata, Cantraine. 



