APHOTOMARINE

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
Arca tetragona Poli, 1795 - Four-sided ark-shell or Common noah's ark
Scroll down and rollover titles to change screen image or click on title to view image.
Four-sided or Noah's ark shell
Arca tetragona
- shell side view 1

Four-sided or Noah's ark shell
Arca tetragona
- shell base / hinge 1

Four-sided or Noah's ark shell
Arca tetragona
- shell top / mouth 1

Four-sided or Noah's ark shell
Arca tetragona
- shell side view with rule 1

Four-sided or Noah's ark shell
Arca tetragona
- shell 1

Four-sided or Noah's ark shell
Arca tetragona
- shell 2

Four-sided or Noah's ark shell
Arca tetragona
- shell 3

Four-sided or Noah's ark shell
Arca tetragona
- shell / front of valves 1

Four-sided or Noah's ark shell
Arca tetragona
- broken shell 1

Four-sided or Noah's ark shell
Arca tetragona
- broken shell 2

Images of broken shell taken at Porthcurno Beach Porthcurno, Cornwall. 16.05.12. Images of whole shell from personal collection, shell here was originally collected at Vilasimius, Cagliari, Italy. Shell size 14.7mm, this specimen was purchased from
Guido T. Poppe - Philippe Poppe, Conchology, Inc.. Also additional images from a private collection in Cornwall.

There are a few recent and historic records from Cornwall. Species recorded from Harlyn Bay, Hannafore, Helford, Falmouth, Marazion, Porthcurno and Sennen Cove.

Scientific and European Names:
Arca tetragona, Arca argenvillea, Arca britannica, Arca cardissa, Arca fusca, Arca papillosa, Tetrarca imbricata ibizenca, Four-sided ark-shell, Common noah's ark.

Location information provided by the author and from the ERICA records database for Cornwall. Scientific and Common Names used are largely gained from from the WoRMS Database.

Arca tetragonae Four sided Ark Shell or Common noahs ark Marine Bivalve 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.