Horned nerite
A variant of Nerite snail (Neritina natalensis)
A small nerite (Clithon/Neritina type) with black-and-yellow banding and protruding horn-like projections on the shell margin. The horns are natural growths.
Keeper tips for this variant
The small size and horns let them wedge into tight crevices; avoid sharp decor that snaps the horns and keep water hard to preserve them.