An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Balanus trigonus Darwin, 1854 - An Acorn barnacle - non-native species (Barnacle images)
Balanus trigonus
- top view of dead animals 1

Balanus trigonus
- top view of dead animals 2

In the above images the barnacle species is attached to Atrina rigida, the Stiff pen shell, the specimen was collected in March 1990 at San Carlos Bay, Punta Rassa, Florida, USA.

Balanus trigonus has been recorded in the UK before. Specimens were found by Dr. Paul Gainey who examined the wreck of a large speedboat that had drifted across the Atlantic semi-submerged. The vessel was originally found in December 1986 off St. Ives, it appears to have come from the south-east coast of the United States of America.

See, "Columbus and Pteria columbus", an article by Stella Turk MBE, in The Cochologists' Newsletter 105: 93-95.

Balanus trigonus acorn sessile barnacle marine images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.