Specimen, shell
Other name(s):
Arca tetragona
Arca tetragona
Tetragonal ark shell
tetragonal ark
ark-shell
The common ark shell
Collection ID:
Z555.1.132
Collection:
Zoology
Class: Bivalvia. 11 specimens. 2 have both valves still connected at the hinge and the rest are individual valves. 5 right and 4 left. Some may be from the same animal but it is difficult to say for sure. Trapezoidal in shape, with a long straight dorsal margin. Visible teeth on the inside surface of the hinges. Off white in colour with clear ridges often with brown lining.
Field collection
| Collector | Robert Rendall |
References
| Reference literature | Rendall, R. 'Mollusca Orcandensia' (1956) Proceedings of the Royal Society of Edinburgh 66, pp.131-201 (p.178) |
