Ancilla suavis Yokoyama, 1926 [Invalid]

"Shell solid, subcylindrical, tapering above with summit pointed. Body-whorl almost twice as high as spire. The callus not only covers the spire, but on the back side of the shell also covers the upper portion of the body-whorl, occasionally sending long narrow processes down to the spiral sulcus, while on the front side it comes down to the sulcus as a broad belt covering the upper part of the inner lip. On this account the suture separating the body-whorl from the spire is hidden for two-thirds of its length under the callus. Spiral sulcus broad, with a deep oblique valley below, followed by several spiral folds. Aperture long, pointed above. Canal very short, notched behind. The only specimen we possess is 25 millim. in height and 9 millim. in diameter. The apertural length is 13 13 millim., while the height of the spire is 8.5 millim.'". Pliocene. Shimomata, Shizuoka Prefecture, Japan.