Drillia oleacina
Drillia oleacina is a species of sea snail, a marine gastropod mollusk in the family Drilliidae. Description The shell grows to a length of 10 mm; its diameter 3 mm. (Original description) The sculpture of the shell much resembles Globidrillia smirna (Dall, 1881), especially on the older whorls which differ from those of G. smirna in the following particulars : the protoconch is a rich, dark, shining brown.he nodules have more extended bases, and want the white tips. The color of the whorls is more clearly translucent, wanting the pinkish tinge and the white sutural line; the whorls increase more rapidly in size, and are strongly appressed against their predecessors, thus making the line of the suture irregular. The shell contains nine whorls. The body whorl is quite different in shape and sculpture. The nodules, of which there are on the body whorl only eleven, instead of becoming obsolete on the latter half of the whorl, are produced in the form of stout, strong ribs over the periphery, when these suddenly cease and the anterior part of the whorl is as it were constricted, instead of gradually tapering to the siphonal canal, so that the latter is much more clearly