Streptocionella singularis is a species of small sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Malacolog: Streptocionella singularis Pfeffer, 1886
Description The length of the shell measures 3.8 mm.
(Original description in Latin) The thin shell is ovate-turreted, minimally calcareous, chitinous, pale yellowish-brown, and features an inconspicuous sculpture. The spire is elevated, though the apex is missing or unknown. There are approximately five convex whorls, which are separated by a very oblique, deep suture. The body whorl is large and rounded. The aperture occupies two-fifths of the total length of the shell and is squarely circular in shape; both its outer and lower margins are regularly circular, while the columellar margin is narrow, reflected, somewhat flattened, slightly S-shaped, and almost reaches the outer margin. The columellar fossa is slightly deep and very lightly bordered. Finally, the peristome is chitinous, non-continuous, and surrounds the aperture like a somewhat spreading membrane.
Distribution This marine species occurs off the South Georgia Islands in the southern Atlantic Ocean.
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