Syrnola bacillum Pilsbry, 1901 Tibersyrnola bacillum is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

It is marbled reddish-brown and white, with a narrow band of alternate brown and white spots revolving midway between sutures and on the middle of the upper surface of the body whorl, which has a white peripheral belt.

The whorl of the protoconch stands obliquely on edge, the very short spire inclined downward.

The 12½ or 13 subsequent whorls of the teleoconch are flat, and separated by deeply cut sutures.

[2] This marine species occurs in the Pacific Ocean off Japan and the Philippines.