MITRELLA. 129 



but upon a, comparison of specimens I am not able to arrive at a 

 like conclusion. Mr. Andrew Garrett writes to me that G. Vitiensis, 

 Dunker, has been referred here by one of his English corres- 

 pondents. 



C. ZEBRA, Gray. PI. 49, figs. 12-14. 



Shell oblong, somewhat p3'ramidal, either smooth, or the upper 

 part of the body-whorl and spire obscurely tuberculately folded, 

 striate below ; white with zebra-like longitudinal chestnut mark- 

 ings, more or less interrupted or broken up into spots; folds, 

 when present, usually colored ; interior slightly violet-tinted ; 

 outer lip smooth or barely dentate within. Length, 9-13 mill. 

 JVew Zealand, Japan, Paumotus, Sandwich Islands. 



With this species must be united C. Pacifica^ Gask. (fig. 13), 

 and C. miser, Sowb. (fig. 14). There can be no doubt of the 

 extensive distribution indicated above. 



C. DuNKERi, Try on. PI. 49, fig. 15. 



Shell smooth, ovate-conic, sulcate at the base, apex acute ; 

 color variable, rosy or orange, or white, reticulated or undulated, 

 banded or maculated with chestnut ; aperture light violet or 

 white, the lip thickened and dentate; operculum purpuroid. 



Length, *7-13 mill. Japan. 



Very variabl^^ in both coloring and form, and referred by 

 Dunker, who described it under the name of variant, to the genus 

 Amycla. As I do not recognize the generic distinctness of 

 Ami/cla., I am compelled to change the name — that of varians 

 having been used for a Columbella, many years earlier, by 

 Sowerby. 



C. BuRCHARDi, Dunker. PI. 49, fig. 11. 



Shell smooth, with fine revolving stripe, becoming more dis- 

 tinct towards the base; lip thickened, slightly sulcate within, 

 externally subvaricose ; white, undulated or irregularly maculated 



with chestnut. Length, 15-18 mill. 



Japan. 

 C. Hanleyi, Desh. PI. 49, fig. 16. 



Shell small, ovate-conic, smooth ; white variegated and 



marbled with chestnut ; aperture white Avithin ; lip thickened 



and quadridentate within. Length, 9 mill. 



7". Bourbon. 



