Cyclas punctifera Guppy, 1867 Pisidium punctiferum, the striate peaclam, is a freshwater bivalve of the family Sphaeriidae.

The type locality is a pond at Saint Ann's River, near Port of Spain, Trinidad.

[1] The shell is somewhat subquadrately oval, thin, diaphanous, close, finely striate concentrically, whitish horny, or slightly tinted with fuscous patches near the umbones, and covered with numerous granular points, which are finer and more crowded on the umbones, where the concentric striation is less evident.

[1] Among species of the genus Pisidium the shell appear to resemble most Cyclas argentina D'Orb.

The foot is whitish, translucid, and may be extruded to a length more than equalling that of the shell, the body being brought up to it with a jerk, as in allied species.