Austromegabalanus nigrescens

Austromegabalanus nigrescens, the giant black barnacle, is a species of acorn barnacle found along the coasts of Australia and the west Pacific.

Classification

Austromegabalanus nigrescens, colloquially known as the giant black barnacle, was first scientifically described in 1818 as Balanus nigrescens by Jean-Baptiste Lamarck.

Description

The giant black barnacle is the largest species of acorn barnacle found on Australia' coastlines, growing up to 6 cm tall and 3 cm across.

Distribution

Giant black barnacles are found in New Zealand and the south of Australia.