Olivella hollandi
"Size moderate, shape slender, spire short, extraconical, consisting of four flat tall whorls whose height is equal to half their diameter, and which are separated by deeply channelled sutures. Body-whorl very large, including nearly three-quarters of the total height, oval at its base, bearing anteriorly a narrow non-enamelled zone bordered by an incised line in front of which is a large flat revolving swelling; a few threads revolve round the neck. The aperture is narrow, angular, posteriorly notched, anteriorly terminated by a short, broad, notched canal; columella excavated in the middle, bearing anteriorly two thick oblique folds, behind which is a broad band enclosed between two incised lines, and, posteriorly, two plaits revolving successively; columellar margin indistinct.".
Dimensions | |
Height | 23.0 mm |
Diameter | 8.5 mm |