Diagram illustrating the life history of the barnacle by John Hassall

Pen-and-ink diagram of barnacle life stages hanging from a ship's hull, with labeled nauplius, pupa and adult views.

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Diagram illustrating the life history of the barnacle, John Hassall. Via artnap.com

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Why is this public domain? John Hassall died in 1948; this work is in the public domain.

About this work

A pen-and-ink diagram by John Hassall illustrating the life stages of the barnacle, Lepas anatifera, shown hanging beneath a ship's hull. Labeled figures include a nauplius, a pupa, the adult with cirri, feet, mouth and nose, and views of its eye and ovus, with a verse caption below.

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Public domain