Skip to main content
U.S. flag

An official website of the United States government

A microscopic photo of the invasive foraminifer Trochammina hadai with a U.S. penny for scale

Detailed Description

A microscopic photo of the invasive foraminifer Trochammina hadai with a U.S. penny for scale. Native to Asia, T. hadai arrived to the U.S. West Coast in the 1980s and has displaced native foraminifers.

Sources/Usage

Public Domain.

Was this page helpful?